Aqueous zinc metal batteries(AZMBs)are promising candidates for next-generation energy storage,but their commercialization is hindered by zinc anode challenges,notably parasitic reactions and dendrite growth.Herein,we...Aqueous zinc metal batteries(AZMBs)are promising candidates for next-generation energy storage,but their commercialization is hindered by zinc anode challenges,notably parasitic reactions and dendrite growth.Herein,we present a biodegradable biomass-derived protective layer,primarily composed of curcumin,as a zincophilic interface for AZMBs.The curcumin-based layer,fabricated via a homogeneous solution process,exhibits strong adhesion,uniform coverage,and robust mechanical integrity.Rich polar functional groups in curcumin facilitate homogeneous Zn~(2+)flux and suppress side reactions.The curcumin-based layer shows a favorable affinity for zinc trifluoromethanesulfonate(Zn(OTf)_(2))electrolyte,which is the representative of organic zinc salts,enabling optimal thickness for both protection and ion transport.The protected Zn anodes demonstrate an extended lifespan of 2500 h in symmetrical cells and a high Coulombic efficiency of 99.15%.Furthermore,Zn(OTf)_(2)-based system typically exhibits poor stability at high current densities.Fortunately,the lifespan of symmetrical cells was extended by 40-fold at the high current density.When paired with an Na V_(3)O_(8)·1.5H_(2)O(NVO)cathode,the system achieves 86.5%capacity retention after 3000 cycles at a large specific current density of 10 A g^(-1).These results underscore the efficacy of the curcumin-based protective layer in enhancing the reversibility and stability of metal electrodes,specifically relieving the instability of Zn(OTf)_(2)-based systems at high current densities,advancing its commercial viability.展开更多
Aqueous zinc(Zn)-ion batteries hold great promise as renewable energy storage system for carbon-neutral energy transition.However,Zn anodes suffer from poor Zn plating/stripping reversibility due to Zn dendrite growth...Aqueous zinc(Zn)-ion batteries hold great promise as renewable energy storage system for carbon-neutral energy transition.However,Zn anodes suffer from poor Zn plating/stripping reversibility due to Zn dendrite growth and side reactions.Existing Zn interfacial modification strategies based on single-component or homogeneous structure are insufficient to address these issues comprehensively.Herein,we rationally designed an organic-inorganic hybrid interfacial layer with rigid-to-soft graded structure for dendrite-free and stable Zn anodes.A liquid plasma-assisted oxidation technology is developed to rapidly construct a porous ZnO inner framework in situ.This ZnO layer offers high interfacial energy,mechanical robustness,and an open structure that facilitates ion transport while firmly anchoring a subsequently coated soft polymer layer.The resulting architecture presents a structurally graded and functionally complementary interface,enabling effective dendrite suppression,continuous Zn ion transport,and enhanced corrosion resistance.As a result,a long cycling stability of more than 6000 h can be achieved at 1 mA cm^(-2)for 1 mAh cm^(-2)in symmetric cells.When used as anodes for zinc-iodine full battery,the hybrid interlayer can effectively prevent the Zn anodes from the corrosion by polyiodine,enabling stable cycling and negligible capacity decay(~0.02‰per cycle)for over 10,000 cycles at 2.0 A g^(-1).This work demonstrates a promising interfacial design strategy and introduces a novel liquid plasma-assisted oxidation route for fabricating high-performance Zn anodes towards next-generation aqueous batteries.展开更多
Zinc(Zn)deficiency is a global health issue,exacerbated by low Zn concentration and poor bioavailability in rice,primarily due to phytic acid(PA)interference.In this study,four doubled haploid(DH)progenies(DH1,DH11,DH...Zinc(Zn)deficiency is a global health issue,exacerbated by low Zn concentration and poor bioavailability in rice,primarily due to phytic acid(PA)interference.In this study,four doubled haploid(DH)progenies(DH1,DH11,DH18,and DH29)with distinct Zn and PA profiles were used to evaluate the effects of varying degrees of milling(DOM)on Zn bioavailability.Results showed DOM followed a double-exponential decay pattern(R^(2)>0.99)with milling time,varying among the four DH lines under identical milling conditions.As DOM increased,Zn,PA,and phosphorus(P)concentrations decreased progressively.展开更多
Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density...Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density.However,their practical commercialization is hindered by critical challenges on the anode side,including dendrite growth and parasitic reactions at the anode/electrolyte interface.Recent studies highlight that rational electrolyte structure engineering offers an effective route to mitigate these issues and strengthen the electrochemical performance of the zinc metal anode.In this review,we systematically summarize state-of-the-art strategies for electrolyte optimization,with a particular focus on the zinc salts regulation,electrolyte additives,and the construction of novel electrolytes,while elucidating the underlying design principles.We further discuss the key structure–property relationships governing electrolyte behavior to provide guidance for the development of next-generation electrolytes.Finally,future perspectives on advanced electrolyte design are proposed.This review aims to serve as a comprehensive reference for researchers exploring high-performance electrolyte engineering in AZIBs.展开更多
The electric double layer(EDL)at the electrochemical interface is crucial for ion transport,charge transfer,and surface reactions in aqueous rechargeable zinc batteries(ARZBs).However,Zn anodes routinely encounter per...The electric double layer(EDL)at the electrochemical interface is crucial for ion transport,charge transfer,and surface reactions in aqueous rechargeable zinc batteries(ARZBs).However,Zn anodes routinely encounter persistent dendrite growth and parasitic reactions,driven by the inhomogeneous charge distribution and water-dominated environment within the EDL.Compounding this,classical EDL theory,rooted in meanfield approximations,further fails to resolve molecular-scale interfacial dynamics under battery-operating conditions,limiting mechanistic insights.Herein,we established a multiscale theoretical calculation framework from single molecular characteristics to interfacial ion distribution,revealing the EDL’s structure and interactions between different ions and molecules,which helps us understand the parasitic processes in depth.Simulations demonstrate that water dipole and sulfate ion adsorption at the inner Helmholtz plane drives severe hydrogen evolution and by-product formation.Guided by these insights,we engineered a“water-poor and anion-expelled”EDL using 4,1’,6’-trichlorogalactosucrose(TGS)as an electrolyte additive.As a result,Zn||Zn symmetric cells with TGS exhibited stable cycling for over 4700 h under a current density of 1 mA cm^(−2),while NaV_(3)O_(8)·1.5H_(2)O-based full cells kept 90.4%of the initial specific capacity after 800 cycles at 5 A g^(−1).This work highlights the power of multiscale theoretical frameworks to unravel EDL complexities and guide high-performance ARZB design through integrated theory-experiment approaches.展开更多
Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites...Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites and the occurrence of significant side reactions.Herein,sucralose(SCL),as an electrolyte additive,has been used to promote the exposure of the Zn(002)texture.The introduction of SCL can adjust the Zn~(2+)nucleation and diffusion along different crystal facets,promoting the exposure of the Zn(002)texture.By substituting water molecules in the[Zn(H_(2)O)_(6)]~(2+),SCL reconfigures the hydrogen bond network in the electrolyte,reconstructing the solvation structure and suppressing the hydrogen evolution reaction.Consequently,the Zn//Zn symmetric battery exhibits long-term cycling stability of over 4900 h at 1 mA cm^(-2)-1 mAh cm^(-2).Even at a harsh condition of 30 mA cm^(-2)-30 mAh cm^(-2)(DOD=73.3%),it can stably cycle for 171 h.The CE of the Zn//Cu half battery reaches 99.61% at 0.2 mA cm^(-2)with 0.2 mAh cm^(-2).Employing the optimized electrolyte,after 500 cycles,a high specific capacity of 420 mAh g^(-1)can be retained for the NH_4V_4O_(10)//Zn full battery at 500 mA g^(-1),corresponding to a capacity retention of 90.7%.展开更多
Type 1 diabetes(T1D)is defined by autoimmune-mediated destruction of the insulin-producing pancreatic β-cells.Impaired insulin secretion due to β-cell apoptosis and islet massloss is the main feature of T1D[1].Curre...Type 1 diabetes(T1D)is defined by autoimmune-mediated destruction of the insulin-producing pancreatic β-cells.Impaired insulin secretion due to β-cell apoptosis and islet massloss is the main feature of T1D[1].Current therapeutic strategies for T1D are mainly through subcutaneous administration of insulin or islet/pancreas transplantation.展开更多
A zinc sulfate open framework matrix,[Zn(SO_4)(DMSO)](1),was synthesized by solvothermal evaporationusing dimethyl sulfoxide(DMSO)as the solvent.A compositeP@1,which exhibits fluorescence and room tempera-ture phospho...A zinc sulfate open framework matrix,[Zn(SO_4)(DMSO)](1),was synthesized by solvothermal evaporationusing dimethyl sulfoxide(DMSO)as the solvent.A compositeP@1,which exhibits fluorescence and room tempera-ture phosphorescence(RTP)properties,was prepared by doping 2,6-naphthalic acid(P)into matrix1at a low con-centration.P@1emitted a green RTP that was visible to the naked eye and lasted for approximately 2 s.P@1exhib-ited selective phosphorescence enhancement response towards Pb^(2+),with a detection limit of 2.52μmol·L^(-1).Themain detection mechanism is the Pb—O coordination-induced phosphorescence enhancement in the system.Inter-estingly,P@1also functioned as a dual-channel probe for the rapid detection of Fe^(3+)ions through fluorescencequenching with a detection limit of 0.038μmol·L^(-1).The recognition mechanism may be attributed to the competi-tive energy absorption betweenP@1and Fe^(3+)ions.CCDC:2388502,1.展开更多
Guided bone regeneration in the alveolar bone relies on the colonization and differentiation of immune cells within the defect area.The absence of osteoinductive and osteoimmune properties of currently available scaff...Guided bone regeneration in the alveolar bone relies on the colonization and differentiation of immune cells within the defect area.The absence of osteoinductive and osteoimmune properties of currently available scaffolds hinders to achieve optimal repair outcomes in clinical settings.Thus,we aimed to enhance the bone repair ability of polycaprolactone(PCL)scaffolds by incorporating osteoinductive amorphous calcium phosphate(ACP)with immune-regulating zinc ions(ACP(Zn),ACZP),to create a favorable immunomodulatory microenvironment.After one day of co-culture with PCL-ACZP,the spreading area of macrophage cells was significantly higher than that from the original PCL scaffold.Additionally,over 32.1%of macrophages exhibited M2 polarization within three days of co-culture.The PCLACZP/macrophage-conditioned medium significantly boosted osteogenic gene expression in MC3T3-E1 cells.After eight weeks of implantation in a rat femoral condyle defect,the BV/TV from the PCL-ACZP group reached 32.9%,1.4 times of that from the PCL group.Furthermore,the PCL-ACZP-GelMA biphasic module as prepared successfully achieved complete regeneration of three-walled alveolar bone defects in rabbits,resulting in arch-shaped alveolar bone repair and providing greater convenience in the clinical settings.This study showcased the effectiveness of PCL-ACZP-GelMA biphasic module as bioactive scaffolds in the morphological restoration of alveolar bone.展开更多
BACKGROUND Hepatocellular carcinoma(HCC)is one of the most prevalent and aggressive forms of liver cancer,with high morbidity and poor prognosis due to late diagnosis and limited treatment options.Despite advances in ...BACKGROUND Hepatocellular carcinoma(HCC)is one of the most prevalent and aggressive forms of liver cancer,with high morbidity and poor prognosis due to late diagnosis and limited treatment options.Despite advances in understanding its molecular mechanisms,effective biomarkers for early detection and targeted therapy remain scarce.Zinc finger protein 71(ZNF71),a zinc-finger protein,has been implicated in various cancers,yet its role in HCC remains largely unexplored.This gap in knowledge underscores the need for further investigation into the ZNF71 of potential as a diagnostic or therapeutic target in HCC.AIM To explore the expression levels,clinical relevance,and molecular mechanisms of ZNF71 in the progression of HCC.METHODS The study evaluated ZNF71 expression in 235 HCC specimens and 13 noncancerous liver tissue samples using immunohistochemistry.High-throughput datasets were employed to assess the differential expression of ZNF71 in HCC and its association with clinical and pathological features.The impact of ZNF71 on HCC cell line growth was examined through clustered regularly interspaced short palindromic repeat knockout screens.Co-expressed genes were identified and analyzed for enrichment using LinkedOmics and Sangerbox 3.0,focusing on significant correlations(P<0.01,correlation coefficient≥0.3).Furthermore,the relationship between ZNF71 expression and immune cell infiltration was quantified using TIMER2.0.RESULTS ZNF71 showed higher expression in HCC tissues vs non-tumorous tissues,with a significant statistical difference(P<0.05).Data from the UALCAN platform indicated increased ZNF71 levels across early to mid-stage HCC,correlating with disease severity(P<0.05).High-throughput analysis presented a standardized mean difference in ZNF71 expression of 0.55(95%confidence interval[CI]:0.34-0.75).The efficiency of ZNF71 mRNA was evaluated,yielding an area under the curve of 0.78(95%CI:0.75-0.82),a sensitivity of 0.63(95%CI:0.53-0.72),and a specificity of 0.82(95%CI:0.73-0.89).Diagnostic likelihood ratios were positive at 3.61(95%CI:2.41-5.41)and negative at 0.45(95%CI:0.36-0.56).LinkedOmics analysis identified strong positive correlations of ZNF71 with genes such as ZNF470,ZNF256,and ZNF285.Pathway enrichment analyses highlighted associations with herpes simplex virus type 1 infection,the cell cycle,and DNA replication.Negative correlations involved metabolic pathways,peroxisomes,and fatty acid degradation.TIMER2.0 analysis demonstrated positive correlations of high ZNF71 expression with various immune cell types,including CD4^(+)T cells,B cells,regulatory T cells,monocytes,macrophages,and myeloid dendritic cells.CONCLUSION ZNF71 is significantly upregulated in HCC,correlating with the disease’s clinical and pathological stages.It appears to promote HCC progression through mechanisms involving the cell cycle and metabolism and is associated with immune cell infiltration.These findings suggest that ZNF71 could be a novel target for diagnosing and treating HCC.展开更多
This study investigates the potential of Prosopis cineraria Leaves Powder(PCLP)as a biosorbent for removing lead(Pb)and zinc(Zn)from aqueous solutions,optimizing the process using Response Surface Methodology(RSM).Pro...This study investigates the potential of Prosopis cineraria Leaves Powder(PCLP)as a biosorbent for removing lead(Pb)and zinc(Zn)from aqueous solutions,optimizing the process using Response Surface Methodology(RSM).Prosopis cineraria,commonly known as Khejri,is a drought-resistant tree with significant promise in environmental applications.The research employed a Central Composite Design(CCD)to examine the independent and combined effects of key process variables,including initial metal ion concentration,contact time,pH,and PCLP dosage.RSM was used to develop mathematical models that explain the relationship between these factors and the efficiency of metal removal,allowing the determination of optimal operating conditions.The experimental results indicated that the Langmuir isotherm model was the most appropriate for describing the biosorption of both metals,suggesting favorable adsorption characteristics.Additionally,the D-R isotherm confirmed that chemisorption was the primary mechanism involved in the biosorption process.For lead removal,the optimal conditions were found to be 312.23 K temperature,pH 4.72,58.5 mg L-1 initial concentration,and 0.27 g biosorbent dosage,achieving an 83.77%removal efficiency.For zinc,the optimal conditions were 312.4 K,pH 5.86,53.07 mg L-1 initial concentration,and the same biosorbent dosage,resulting in a 75.86%removal efficiency.These findings highlight PCLP’s potential as an effective,eco-friendly biosorbent for sustainable heavy metal removal in water treatment.展开更多
As battery technology evolves and demand for efficient energy storage solutions,aqueous zinc ion batteries(AZIBs)have garnered significant attention due to their safety and environmental benefits.However,the stability...As battery technology evolves and demand for efficient energy storage solutions,aqueous zinc ion batteries(AZIBs)have garnered significant attention due to their safety and environmental benefits.However,the stability of cathode materials under high-voltage conditions remains a critical challenge in improving its energy density.This review systematically explores the failure mechanisms of high-voltage cathode materials in AZIBs,including hydrogen evolution reaction,phase transformation and dissolution phenomena.To address these challenges,we propose a range of advanced strategies aimed at improving the stability of cathode materials.These strategies include surface coating and doping techniques designed to fortify the surface properties and structure integrity of the cathode materials under high-voltage conditions.Additionally,we emphasize the importance of designing antioxidant electrolytes,with a focus on understanding and optimizing electrolyte decomposition mechanisms.The review also highlights the significance of modifying conductive agents and employing innovative separators to further enhance the stability of AZIBs.By integrating these cutting-edge approaches,this review anticipates substantial advancements in the stability of high-voltage cathode materials,paving the way for the broader application and development of AZIBs in energy storage.展开更多
The integration of dual-mesoporous structures,the construction of heterojunctions,and the incorporation of highly concentrated oxygen vacancies are pivotal for advancing metal oxide-based gas sensors.Nonetheless,achie...The integration of dual-mesoporous structures,the construction of heterojunctions,and the incorporation of highly concentrated oxygen vacancies are pivotal for advancing metal oxide-based gas sensors.Nonetheless,achieving an optimal design that simultaneously combines mesoporous structures,precise heterojunction modulation,and controlled oxygen vacancies through a one-step process remains challenging.This study proposes an innovative method for fabricating zinc stannate semiconductors featuring dual-mesoporous structures and tunable oxygen vacancies via a direct solution precursor plasma spray technique.As a proof of concept,the resulting zinc stannate-based coatings are applied to detect 2-undecanone,a key biomarker for rice aging.Remarkably,the zinc oxide/zinc stannate heterojunctions with a well-defined secondary pore structure exhibit exceptional gas-sensing performance for 2-undecanone at room temperature.Furthermore,practical experiments indicate that the developed sensor effectively identifies adulteration in various rice varieties.These results underscore the potential of this method for designing metal oxides with tailored properties for high-performance gas sensors.The enhanced adsorption capacity and dual-mesoporous features of this semiconductor make it a promising candidate for sensing applications in agricultural food safety inspections.展开更多
Aqueous zinc-iodine(Zn-I_(2))batteries show great potential as energy storage candidates due to their high-safety and low-cost,but confronts hydrogen evolution reaction(HER)and dendrite growth at anode side and polyio...Aqueous zinc-iodine(Zn-I_(2))batteries show great potential as energy storage candidates due to their high-safety and low-cost,but confronts hydrogen evolution reaction(HER)and dendrite growth at anode side and polyiodide shuttling at cathode side.Herein,"tennis racket"(TR)hydrogel electrolytes were prepared by the co-polymerization and co-blending of polyacrylamide(PAM),sodium lignosulfonate(SL),and sodium alginate(SA)to synchronously regulate cathode and anode of Zn-I_(2)batteries."Gridline structure"of TR can induce the uniform transportation of Zn^(2+)ions through the coordination effect to hinder HER and dendrite growth at anode side,as well as hit I_(3)^(-)ions as"tennis"via the strong repulsion force to avoid shuttle effect at cathode side.The synergistic effect of TR electrolyte endows Zn-Zn symmetric battery with high cycling stability over 4500 h and Zn-I_(2)cell with the stably cycling life of 15000 cycles at5 A g^(-1),outperforming the reported works.The practicability of TR electrolyte is verified by flexible Zn-I_(2)pouch battery.This work opens a route to synchronously regulate cathode and anode to enhance the electrochemical performance of Zn-I_(2)batteries.展开更多
Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning perfo...Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning performance failure at low temperatures.To address these challenges,a novel anti-freezing leather gel electrolyte(AFLGE-30)is designed,incorporating ethanol as a hydrogen bonding acceptor.The AFLGE-30 demonstrates exceptional frost resistance while maintaining favorable flexibility even at-30℃;accordingly,the battery can achieve a high specific capacity of about 70 m Ah/g.Cu//Zn battery exhibits remarkable stability at room temperature,retaining~96%efficiency after 120 plating/stripping cycles at1 m A/cm^(2).Concurrently,the Zn//Zn symmetric batteries demonstrate a lifespan of 4100 h at room temperature,which is attributed to the enhancement of Zn^(2+)deposition kinetics,restraining the formation of zinc dendrites.Furthermore,FZIBs exhibit minimal capacity loss even after bending,impacting,or burning.This work provides a promising strategy for designing low-temperature-resistant FZIBs.展开更多
The Jahn-Teller effect of Mn^(3+)brings drastic structural changes to MnO_(2)-based materials and accelerates the destruction and deactivation of the internal structure of the materials,thus leading to severe capacity...The Jahn-Teller effect of Mn^(3+)brings drastic structural changes to MnO_(2)-based materials and accelerates the destruction and deactivation of the internal structure of the materials,thus leading to severe capacity fading and phase change of MnO_(2)-based materials in aqueous zinc ion batteries(AZIBs).Here,this study doped high valent vanadium ions into MnO_(2)(VMO-x)to inhibit manganese's Jahn-Teller effect.Through a series of characterizations,such as X-ray diffraction(XRD),Raman spectroscopy,and scanning electron microscopy(SEM),it was discovered that the introduction of vanadium ions effectively increased the interlayer spacing of MnO_(2),facilitating the transport of ions into the interlayer.Additionally,Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)demonstrated vanadium doped could effectively adjust the electronic structure,decreasing the average oxidation state of manganese,thereby inhibiting the Jahn-Teller effect and significantly enhancing the stability of the VMO-x cathode.The theoretical calculation showed that introducing vanadium ions enhanced the interaction between the main material and Zn^(2+),optimized its electron transport capacity,and led to better electrical conductivity and reaction kinetics of the VMO-5.Benefiting from this,the VMO-5 cathode exhibited an outstanding capacity of 283 mAh/g and maintained a capacity retention rate of 79%after 2000 cycles,demonstrating excellent electrochemical performance.Furthermore,the mechanism of H^(+)/Zn^(2+)co-intercalation/deintercalation was demonstrated through mechanism analysis.Finally,the test results of the pouch cell demonstrated the excellent flexibility and safety exhibited by the VMO-5 make it have great potential in flexible devices.This work presented a novel approach to doping high valence metal ions into manganese-based electrodes for AZIBs.展开更多
Aqueous zinc-ion batteries(AZIBs)have regained interest due to their inherent safety and costeffectiveness.However,the zinc anode is notorious for side reactions and dendrite growth,which plague the practical applicat...Aqueous zinc-ion batteries(AZIBs)have regained interest due to their inherent safety and costeffectiveness.However,the zinc anode is notorious for side reactions and dendrite growth,which plague the practical application of AZIBs.Adjusting the interfacial pH to reduce the by-products has been proven to be effective in protecting the zinc anode.Nevertheless,the dynamic regulation of the inherently unstable zinc interface during prolonged cycling remains a significant challenge.Herein,zwitterionic N-tris(hydroxymethyl)methylglycine(TMG)integrated with negative-COO^(-)and positive NH_(2)^(+)groups is proposed to stabilize the Zn anode and extend the lifespan as a self-regulating interfacial additive.The anionic portion serves as a trapping site to balance the interfacial pH and thus mitigate the unintended side reactions.Simultaneously,the NH_(2)^(+)cations are anchored on the zinc surface,forming a water-shielding,zincophilic molecular layer that guides three-dimensional diffusion and promotes uniform electro-deposition.Thus,an average plating efficiency of 99.74%over 3300 cycles at a current density of2 mA cm^(-2)is achieved.Notably,the TMG additive actualizes ultralong life in Zn‖Zn symmetrical cells(5500 h,exceeding 229 days,1 mA cm^(-2)/1 mA h cm^(-2)),and enables the Zn‖I_(2)cells to reach capacity retention rate of 89.4%after 1000 cycles at 1 A g^(-1).展开更多
The goethite residue generated from zinc hydrometallurgy is classified as hazardous solid waste,produced in large quantities,and results in significant zinc loss.The study was conducted on removing iron from FeSO_(4)-...The goethite residue generated from zinc hydrometallurgy is classified as hazardous solid waste,produced in large quantities,and results in significant zinc loss.The study was conducted on removing iron from FeSO_(4)-ZnSO_(4) solution,employing seed-induced nucleation methods.Analysis of the iron removal rate,residue structure,morphology,and elemental composition involved ICP,XRD,FT-IR,and SEM.The existing state of zinc was investigated by combining step-by-step dissolution using hydrochloric acid.Concurrently,iron removal tests were extended to industrial solutions to assess the influence of seeds and solution pH on zinc loss and residue yield.The results revealed that seed addition increased the iron removal rate by 3%,elevated the residual iron content by 6.39%,and mitigated zinc loss by 29.55%in the simulated solution.Seed-induced nucleation prevented excessive nuclei formation,fostering crystal stable growth and high crystallinity.In addition,the zinc content of surface adsorption and crystal internal embedding in the residue was determined,and the zinc distribution on the surface was dense.In contrast,the total amount of zinc within the crystal was higher.The test results in the industrial solution demonstrated that the introduction of seeds expanded the pH range for goethite formation and growth,and the zinc loss per ton of iron removed was reduced by 50.91 kg(34.12%)and the iron residue reduced by 0.17 t(8.72%).展开更多
Aqueous zinc-ion batteries are regarded as promising electrochemical energy-storage systems for various applications because of their high safety,low costs,and high capacities.However,dendrite formation and side react...Aqueous zinc-ion batteries are regarded as promising electrochemical energy-storage systems for various applications because of their high safety,low costs,and high capacities.However,dendrite formation and side reactions during zinc plating or stripping greatly reduce the capacity and cycle life of a battery and subsequently limit its practical application.To address these issues,we modified the surface of a zinc anode with a functional bilayer composed of zincophilic Cu and flexible polymer layers.The zincophilic Cu interfacial layer was prepared through CuSO_(4)solution pretreatment to serve as a nucleation site to facilitate uniform Zn deposition.Meanwhile,the polymer layer was coated onto the Cu interface layer to serve as a protective layer that would prevent side reactions between zinc and electrolytes.Benefiting from the synergistic effect of the zincophilic Cu and protective polymer layers,the symmetric battery exhibits an impressive cycle life,lasting over 2900 h at a current density of 1 m A·cm^(-2)with a capacity of 1 m A·h·cm^(-2).Moreover,a full battery paired with a vanadium oxide cathode achieves a remarkable capacity retention of 72%even after 500 cycles.展开更多
To address the cycling stability of zinc-ion batteries resulting from zinc dendrites,this work proposes the utilization of sulfonic groups to modulate the de-solvation and adsorption energy of zinc ions,achieving the ...To address the cycling stability of zinc-ion batteries resulting from zinc dendrites,this work proposes the utilization of sulfonic groups to modulate the de-solvation and adsorption energy of zinc ions,achieving the horizontal growth of zinc dendrites.Using polyacrylamide(PAM)and carboxymethyl cellulose(CMC)composite gels as modification targets,sodium dodecyl sulfate(SDS)provides the sulfonic group,the PAM/CMC/SDS gel electrolyte exhibits a coordination number as low as 0.19 and a desolvation energy reaching up to 2.73 eV.Based on this,the gel electrolyte exhibits a wide operating voltage range of 2.93 V,effectively suppressing both hydrogen and oxygen evolution reactions.More importantly,zinc ions in the PAM/CMC/SDS electrolytes preferentially grow along the zinc(002)plane,characterized by higher adsorption energy,leading to the formation of a uniform and dense zinc deposit,rather than vertical growth on the(100)crystal plane.The successfully induced directional deposition of zinc crystals and mitigation of hydrogen evolution enables the PAM/CMC/SDS gel electrolyte to achieve remarkable cycling stability in Zn||Zn symmetrical cells for up to 2800 h,In addition,the Zn||MnO_(2) asymmetric battery exhibits a specific capacity of 334 mAh g^(-1),accompanied by excellent rate performance,which ensures the reliability and durability of the quasi-solid-state zinc-ion battery based on the gel electrolyte in dynamic practical applications.展开更多
基金the financial support from Research Institute for Smart Energy at the Hong Kong Polytechnic University(Grant No.CDB2)the support of the Hong Kong PhD Fellowship Scheme(Grant No.PF21-65328)。
文摘Aqueous zinc metal batteries(AZMBs)are promising candidates for next-generation energy storage,but their commercialization is hindered by zinc anode challenges,notably parasitic reactions and dendrite growth.Herein,we present a biodegradable biomass-derived protective layer,primarily composed of curcumin,as a zincophilic interface for AZMBs.The curcumin-based layer,fabricated via a homogeneous solution process,exhibits strong adhesion,uniform coverage,and robust mechanical integrity.Rich polar functional groups in curcumin facilitate homogeneous Zn~(2+)flux and suppress side reactions.The curcumin-based layer shows a favorable affinity for zinc trifluoromethanesulfonate(Zn(OTf)_(2))electrolyte,which is the representative of organic zinc salts,enabling optimal thickness for both protection and ion transport.The protected Zn anodes demonstrate an extended lifespan of 2500 h in symmetrical cells and a high Coulombic efficiency of 99.15%.Furthermore,Zn(OTf)_(2)-based system typically exhibits poor stability at high current densities.Fortunately,the lifespan of symmetrical cells was extended by 40-fold at the high current density.When paired with an Na V_(3)O_(8)·1.5H_(2)O(NVO)cathode,the system achieves 86.5%capacity retention after 3000 cycles at a large specific current density of 10 A g^(-1).These results underscore the efficacy of the curcumin-based protective layer in enhancing the reversibility and stability of metal electrodes,specifically relieving the instability of Zn(OTf)_(2)-based systems at high current densities,advancing its commercial viability.
基金support from the Australian Research Council Discovery Program(DP220103416,DP240102177)Australian Research Council Future Fellowships(FT200100730,FT210100804).
文摘Aqueous zinc(Zn)-ion batteries hold great promise as renewable energy storage system for carbon-neutral energy transition.However,Zn anodes suffer from poor Zn plating/stripping reversibility due to Zn dendrite growth and side reactions.Existing Zn interfacial modification strategies based on single-component or homogeneous structure are insufficient to address these issues comprehensively.Herein,we rationally designed an organic-inorganic hybrid interfacial layer with rigid-to-soft graded structure for dendrite-free and stable Zn anodes.A liquid plasma-assisted oxidation technology is developed to rapidly construct a porous ZnO inner framework in situ.This ZnO layer offers high interfacial energy,mechanical robustness,and an open structure that facilitates ion transport while firmly anchoring a subsequently coated soft polymer layer.The resulting architecture presents a structurally graded and functionally complementary interface,enabling effective dendrite suppression,continuous Zn ion transport,and enhanced corrosion resistance.As a result,a long cycling stability of more than 6000 h can be achieved at 1 mA cm^(-2)for 1 mAh cm^(-2)in symmetric cells.When used as anodes for zinc-iodine full battery,the hybrid interlayer can effectively prevent the Zn anodes from the corrosion by polyiodine,enabling stable cycling and negligible capacity decay(~0.02‰per cycle)for over 10,000 cycles at 2.0 A g^(-1).This work demonstrates a promising interfacial design strategy and introduces a novel liquid plasma-assisted oxidation route for fabricating high-performance Zn anodes towards next-generation aqueous batteries.
基金supported by the National Key Research and Development Program of China(Grant No.2022YFD1200702)the Sanya Fanxing Technology Special Program,China(Grant No.2024KJFX023)the Shandong Provincial Key Research and Development Program,China(Grant No.2023LZGCQY018).
文摘Zinc(Zn)deficiency is a global health issue,exacerbated by low Zn concentration and poor bioavailability in rice,primarily due to phytic acid(PA)interference.In this study,four doubled haploid(DH)progenies(DH1,DH11,DH18,and DH29)with distinct Zn and PA profiles were used to evaluate the effects of varying degrees of milling(DOM)on Zn bioavailability.Results showed DOM followed a double-exponential decay pattern(R^(2)>0.99)with milling time,varying among the four DH lines under identical milling conditions.As DOM increased,Zn,PA,and phosphorus(P)concentrations decreased progressively.
基金supported by the Natural Science Foundation of China(Nos.52125202,52202100,and U24A2065)the Natural Science Foundation of Jiangsu Province(BK20243016)Fundamental Research Funds for the Central Universities,China Postdoctoral Science Foundation(No.2024T171166).
文摘Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density.However,their practical commercialization is hindered by critical challenges on the anode side,including dendrite growth and parasitic reactions at the anode/electrolyte interface.Recent studies highlight that rational electrolyte structure engineering offers an effective route to mitigate these issues and strengthen the electrochemical performance of the zinc metal anode.In this review,we systematically summarize state-of-the-art strategies for electrolyte optimization,with a particular focus on the zinc salts regulation,electrolyte additives,and the construction of novel electrolytes,while elucidating the underlying design principles.We further discuss the key structure–property relationships governing electrolyte behavior to provide guidance for the development of next-generation electrolytes.Finally,future perspectives on advanced electrolyte design are proposed.This review aims to serve as a comprehensive reference for researchers exploring high-performance electrolyte engineering in AZIBs.
基金supported by the National Natural Science Foundation of China(52471240)the Natural Science Foundation of Zhejiang Province(LZ23B030003)+2 种基金the Fundamental Research Funds for the Central Universities(226-2024-00075)support from the Engineering and Physical Sciences Research Council(EPSRC,UK)RiR grant-RIR18221018-1EU COST CA23155。
文摘The electric double layer(EDL)at the electrochemical interface is crucial for ion transport,charge transfer,and surface reactions in aqueous rechargeable zinc batteries(ARZBs).However,Zn anodes routinely encounter persistent dendrite growth and parasitic reactions,driven by the inhomogeneous charge distribution and water-dominated environment within the EDL.Compounding this,classical EDL theory,rooted in meanfield approximations,further fails to resolve molecular-scale interfacial dynamics under battery-operating conditions,limiting mechanistic insights.Herein,we established a multiscale theoretical calculation framework from single molecular characteristics to interfacial ion distribution,revealing the EDL’s structure and interactions between different ions and molecules,which helps us understand the parasitic processes in depth.Simulations demonstrate that water dipole and sulfate ion adsorption at the inner Helmholtz plane drives severe hydrogen evolution and by-product formation.Guided by these insights,we engineered a“water-poor and anion-expelled”EDL using 4,1’,6’-trichlorogalactosucrose(TGS)as an electrolyte additive.As a result,Zn||Zn symmetric cells with TGS exhibited stable cycling for over 4700 h under a current density of 1 mA cm^(−2),while NaV_(3)O_(8)·1.5H_(2)O-based full cells kept 90.4%of the initial specific capacity after 800 cycles at 5 A g^(−1).This work highlights the power of multiscale theoretical frameworks to unravel EDL complexities and guide high-performance ARZB design through integrated theory-experiment approaches.
基金supported by the Anhui Provincial Science and Technology Innovation Initiative(202423i08050051)the Anhui Provincial Natural Science Foundation(2408085MB029)+1 种基金the HFIPS Director’s Fund(YZJJGGZX202201)the Natural Science Foundation of Hebei Province of China(B2024402018)。
文摘Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites and the occurrence of significant side reactions.Herein,sucralose(SCL),as an electrolyte additive,has been used to promote the exposure of the Zn(002)texture.The introduction of SCL can adjust the Zn~(2+)nucleation and diffusion along different crystal facets,promoting the exposure of the Zn(002)texture.By substituting water molecules in the[Zn(H_(2)O)_(6)]~(2+),SCL reconfigures the hydrogen bond network in the electrolyte,reconstructing the solvation structure and suppressing the hydrogen evolution reaction.Consequently,the Zn//Zn symmetric battery exhibits long-term cycling stability of over 4900 h at 1 mA cm^(-2)-1 mAh cm^(-2).Even at a harsh condition of 30 mA cm^(-2)-30 mAh cm^(-2)(DOD=73.3%),it can stably cycle for 171 h.The CE of the Zn//Cu half battery reaches 99.61% at 0.2 mA cm^(-2)with 0.2 mAh cm^(-2).Employing the optimized electrolyte,after 500 cycles,a high specific capacity of 420 mAh g^(-1)can be retained for the NH_4V_4O_(10)//Zn full battery at 500 mA g^(-1),corresponding to a capacity retention of 90.7%.
基金supported by the National Natural Science Foundation of China(32325024,32400981,32222024,32271224,32471228,and 82270891)the National Key Research and Development Program of China(2023YFA1800400)+3 种基金the Shuguang Program of Shanghai Education Development Foundation and Shanghai Municipal Education Commission(23SG22)the Noncommunicable Chronic Diseases-National Science and Technology Major Project(2023ZD0507300)the ECNU public platform for Innovation(011)the instruments sharing platform of School of Life Sciences.
文摘Type 1 diabetes(T1D)is defined by autoimmune-mediated destruction of the insulin-producing pancreatic β-cells.Impaired insulin secretion due to β-cell apoptosis and islet massloss is the main feature of T1D[1].Current therapeutic strategies for T1D are mainly through subcutaneous administration of insulin or islet/pancreas transplantation.
文摘A zinc sulfate open framework matrix,[Zn(SO_4)(DMSO)](1),was synthesized by solvothermal evaporationusing dimethyl sulfoxide(DMSO)as the solvent.A compositeP@1,which exhibits fluorescence and room tempera-ture phosphorescence(RTP)properties,was prepared by doping 2,6-naphthalic acid(P)into matrix1at a low con-centration.P@1emitted a green RTP that was visible to the naked eye and lasted for approximately 2 s.P@1exhib-ited selective phosphorescence enhancement response towards Pb^(2+),with a detection limit of 2.52μmol·L^(-1).Themain detection mechanism is the Pb—O coordination-induced phosphorescence enhancement in the system.Inter-estingly,P@1also functioned as a dual-channel probe for the rapid detection of Fe^(3+)ions through fluorescencequenching with a detection limit of 0.038μmol·L^(-1).The recognition mechanism may be attributed to the competi-tive energy absorption betweenP@1and Fe^(3+)ions.CCDC:2388502,1.
基金financially supported by the National Natural Science Foundation of China(Nos.82203680 and 52273278)the Natural Scientific Foundation of Liaoning Province(No.2021-MS-176)+1 种基金Shenyang Bureau of Science and Technology(No.RC230527)the Central Guidance Funding for Local Scientific and Techno-logical Development in Liaoning(No.2023JH6/100100029).
文摘Guided bone regeneration in the alveolar bone relies on the colonization and differentiation of immune cells within the defect area.The absence of osteoinductive and osteoimmune properties of currently available scaffolds hinders to achieve optimal repair outcomes in clinical settings.Thus,we aimed to enhance the bone repair ability of polycaprolactone(PCL)scaffolds by incorporating osteoinductive amorphous calcium phosphate(ACP)with immune-regulating zinc ions(ACP(Zn),ACZP),to create a favorable immunomodulatory microenvironment.After one day of co-culture with PCL-ACZP,the spreading area of macrophage cells was significantly higher than that from the original PCL scaffold.Additionally,over 32.1%of macrophages exhibited M2 polarization within three days of co-culture.The PCLACZP/macrophage-conditioned medium significantly boosted osteogenic gene expression in MC3T3-E1 cells.After eight weeks of implantation in a rat femoral condyle defect,the BV/TV from the PCL-ACZP group reached 32.9%,1.4 times of that from the PCL group.Furthermore,the PCL-ACZP-GelMA biphasic module as prepared successfully achieved complete regeneration of three-walled alveolar bone defects in rabbits,resulting in arch-shaped alveolar bone repair and providing greater convenience in the clinical settings.This study showcased the effectiveness of PCL-ACZP-GelMA biphasic module as bioactive scaffolds in the morphological restoration of alveolar bone.
基金Supported by Joint Project on Regional High Incidence Diseases Research of Guangxi Natural Science Foundation,No.2024GXNSFAA010057 and No.2024GXNSFAA010085Natural Science Foundation of Guangxi,China,No.2022GXNSFBA035657+2 种基金Guangxi Zhuang Autonomous Region Health Commission Self-Financed Scientific Research Project,No.Z20210764Guangxi Zhuang Autonomous Region Administration of Traditional Chinese Medicine Scientific Research Project,No.GXZYA20230270 and No.GXZYA20240305Advanced Innovation Teams and Xinghu Scholars Program of Guangxi Medical University(2022).
文摘BACKGROUND Hepatocellular carcinoma(HCC)is one of the most prevalent and aggressive forms of liver cancer,with high morbidity and poor prognosis due to late diagnosis and limited treatment options.Despite advances in understanding its molecular mechanisms,effective biomarkers for early detection and targeted therapy remain scarce.Zinc finger protein 71(ZNF71),a zinc-finger protein,has been implicated in various cancers,yet its role in HCC remains largely unexplored.This gap in knowledge underscores the need for further investigation into the ZNF71 of potential as a diagnostic or therapeutic target in HCC.AIM To explore the expression levels,clinical relevance,and molecular mechanisms of ZNF71 in the progression of HCC.METHODS The study evaluated ZNF71 expression in 235 HCC specimens and 13 noncancerous liver tissue samples using immunohistochemistry.High-throughput datasets were employed to assess the differential expression of ZNF71 in HCC and its association with clinical and pathological features.The impact of ZNF71 on HCC cell line growth was examined through clustered regularly interspaced short palindromic repeat knockout screens.Co-expressed genes were identified and analyzed for enrichment using LinkedOmics and Sangerbox 3.0,focusing on significant correlations(P<0.01,correlation coefficient≥0.3).Furthermore,the relationship between ZNF71 expression and immune cell infiltration was quantified using TIMER2.0.RESULTS ZNF71 showed higher expression in HCC tissues vs non-tumorous tissues,with a significant statistical difference(P<0.05).Data from the UALCAN platform indicated increased ZNF71 levels across early to mid-stage HCC,correlating with disease severity(P<0.05).High-throughput analysis presented a standardized mean difference in ZNF71 expression of 0.55(95%confidence interval[CI]:0.34-0.75).The efficiency of ZNF71 mRNA was evaluated,yielding an area under the curve of 0.78(95%CI:0.75-0.82),a sensitivity of 0.63(95%CI:0.53-0.72),and a specificity of 0.82(95%CI:0.73-0.89).Diagnostic likelihood ratios were positive at 3.61(95%CI:2.41-5.41)and negative at 0.45(95%CI:0.36-0.56).LinkedOmics analysis identified strong positive correlations of ZNF71 with genes such as ZNF470,ZNF256,and ZNF285.Pathway enrichment analyses highlighted associations with herpes simplex virus type 1 infection,the cell cycle,and DNA replication.Negative correlations involved metabolic pathways,peroxisomes,and fatty acid degradation.TIMER2.0 analysis demonstrated positive correlations of high ZNF71 expression with various immune cell types,including CD4^(+)T cells,B cells,regulatory T cells,monocytes,macrophages,and myeloid dendritic cells.CONCLUSION ZNF71 is significantly upregulated in HCC,correlating with the disease’s clinical and pathological stages.It appears to promote HCC progression through mechanisms involving the cell cycle and metabolism and is associated with immune cell infiltration.These findings suggest that ZNF71 could be a novel target for diagnosing and treating HCC.
文摘This study investigates the potential of Prosopis cineraria Leaves Powder(PCLP)as a biosorbent for removing lead(Pb)and zinc(Zn)from aqueous solutions,optimizing the process using Response Surface Methodology(RSM).Prosopis cineraria,commonly known as Khejri,is a drought-resistant tree with significant promise in environmental applications.The research employed a Central Composite Design(CCD)to examine the independent and combined effects of key process variables,including initial metal ion concentration,contact time,pH,and PCLP dosage.RSM was used to develop mathematical models that explain the relationship between these factors and the efficiency of metal removal,allowing the determination of optimal operating conditions.The experimental results indicated that the Langmuir isotherm model was the most appropriate for describing the biosorption of both metals,suggesting favorable adsorption characteristics.Additionally,the D-R isotherm confirmed that chemisorption was the primary mechanism involved in the biosorption process.For lead removal,the optimal conditions were found to be 312.23 K temperature,pH 4.72,58.5 mg L-1 initial concentration,and 0.27 g biosorbent dosage,achieving an 83.77%removal efficiency.For zinc,the optimal conditions were 312.4 K,pH 5.86,53.07 mg L-1 initial concentration,and the same biosorbent dosage,resulting in a 75.86%removal efficiency.These findings highlight PCLP’s potential as an effective,eco-friendly biosorbent for sustainable heavy metal removal in water treatment.
基金supported by the Exchange Program of Highend Foreign Experts of Ministry of Science and Technology of People’s Republic of China(No.G2023041003L)the Natural Science Foundation of Shaanxi Provincial Department of Education(No.23JK0367)+1 种基金the Scientific Research Startup Program for Introduced Talents of Shaanxi University of Technology(Nos.SLGRCQD2208,SLGRCQD2306,SLGRCQD2133)Contaminated Soil Remediation and Resource Utilization Innovation Team at Shaanxi University of Technology。
文摘As battery technology evolves and demand for efficient energy storage solutions,aqueous zinc ion batteries(AZIBs)have garnered significant attention due to their safety and environmental benefits.However,the stability of cathode materials under high-voltage conditions remains a critical challenge in improving its energy density.This review systematically explores the failure mechanisms of high-voltage cathode materials in AZIBs,including hydrogen evolution reaction,phase transformation and dissolution phenomena.To address these challenges,we propose a range of advanced strategies aimed at improving the stability of cathode materials.These strategies include surface coating and doping techniques designed to fortify the surface properties and structure integrity of the cathode materials under high-voltage conditions.Additionally,we emphasize the importance of designing antioxidant electrolytes,with a focus on understanding and optimizing electrolyte decomposition mechanisms.The review also highlights the significance of modifying conductive agents and employing innovative separators to further enhance the stability of AZIBs.By integrating these cutting-edge approaches,this review anticipates substantial advancements in the stability of high-voltage cathode materials,paving the way for the broader application and development of AZIBs in energy storage.
基金supported by the Outstanding Youth Foundation of Jiangsu Province of China(Grant No.BK20211548)the Yangzhou Science and Technology Plan Project(Grant No.YZ2023246)。
文摘The integration of dual-mesoporous structures,the construction of heterojunctions,and the incorporation of highly concentrated oxygen vacancies are pivotal for advancing metal oxide-based gas sensors.Nonetheless,achieving an optimal design that simultaneously combines mesoporous structures,precise heterojunction modulation,and controlled oxygen vacancies through a one-step process remains challenging.This study proposes an innovative method for fabricating zinc stannate semiconductors featuring dual-mesoporous structures and tunable oxygen vacancies via a direct solution precursor plasma spray technique.As a proof of concept,the resulting zinc stannate-based coatings are applied to detect 2-undecanone,a key biomarker for rice aging.Remarkably,the zinc oxide/zinc stannate heterojunctions with a well-defined secondary pore structure exhibit exceptional gas-sensing performance for 2-undecanone at room temperature.Furthermore,practical experiments indicate that the developed sensor effectively identifies adulteration in various rice varieties.These results underscore the potential of this method for designing metal oxides with tailored properties for high-performance gas sensors.The enhanced adsorption capacity and dual-mesoporous features of this semiconductor make it a promising candidate for sensing applications in agricultural food safety inspections.
基金financially supported by the Energy Revolution S&T Program of Yulin Innovation Institute of Clean Energy(E411060316)the NSFC-CONICFT Joint Project(51961125207)+1 种基金the Special Fund(2024)of Basic Scientific Research Project at Undergraduate University in Liaoning Province(LJ212410152056)the Foundation(GZKF202301)of State Key Laboratory of Biobased Material and Green Papermaking,Qilu University of Technology,Shandong Academy of Sciences。
文摘Aqueous zinc-iodine(Zn-I_(2))batteries show great potential as energy storage candidates due to their high-safety and low-cost,but confronts hydrogen evolution reaction(HER)and dendrite growth at anode side and polyiodide shuttling at cathode side.Herein,"tennis racket"(TR)hydrogel electrolytes were prepared by the co-polymerization and co-blending of polyacrylamide(PAM),sodium lignosulfonate(SL),and sodium alginate(SA)to synchronously regulate cathode and anode of Zn-I_(2)batteries."Gridline structure"of TR can induce the uniform transportation of Zn^(2+)ions through the coordination effect to hinder HER and dendrite growth at anode side,as well as hit I_(3)^(-)ions as"tennis"via the strong repulsion force to avoid shuttle effect at cathode side.The synergistic effect of TR electrolyte endows Zn-Zn symmetric battery with high cycling stability over 4500 h and Zn-I_(2)cell with the stably cycling life of 15000 cycles at5 A g^(-1),outperforming the reported works.The practicability of TR electrolyte is verified by flexible Zn-I_(2)pouch battery.This work opens a route to synchronously regulate cathode and anode to enhance the electrochemical performance of Zn-I_(2)batteries.
基金supported by the National Natural Science Foundation of China(Nos.22075139 and 62288102)。
文摘Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning performance failure at low temperatures.To address these challenges,a novel anti-freezing leather gel electrolyte(AFLGE-30)is designed,incorporating ethanol as a hydrogen bonding acceptor.The AFLGE-30 demonstrates exceptional frost resistance while maintaining favorable flexibility even at-30℃;accordingly,the battery can achieve a high specific capacity of about 70 m Ah/g.Cu//Zn battery exhibits remarkable stability at room temperature,retaining~96%efficiency after 120 plating/stripping cycles at1 m A/cm^(2).Concurrently,the Zn//Zn symmetric batteries demonstrate a lifespan of 4100 h at room temperature,which is attributed to the enhancement of Zn^(2+)deposition kinetics,restraining the formation of zinc dendrites.Furthermore,FZIBs exhibit minimal capacity loss even after bending,impacting,or burning.This work provides a promising strategy for designing low-temperature-resistant FZIBs.
基金supported the National Key Research and Development Program of China(No.2024YFA1409900)the National Natural Science Foundation of China(Nos.62101296 and 52303335)+2 种基金the China Postdoctoral Science Foundation(Nos.2021M702656 and 2023M730099)the Natural Science Foundation of Shaanxi Province(Nos.2021JQ-756 and 2021M702656)the Graduate Innovation Fund of the School of Mechanical Engineering,Shaanxi University of Technology(No.SLGJX202404)。
文摘The Jahn-Teller effect of Mn^(3+)brings drastic structural changes to MnO_(2)-based materials and accelerates the destruction and deactivation of the internal structure of the materials,thus leading to severe capacity fading and phase change of MnO_(2)-based materials in aqueous zinc ion batteries(AZIBs).Here,this study doped high valent vanadium ions into MnO_(2)(VMO-x)to inhibit manganese's Jahn-Teller effect.Through a series of characterizations,such as X-ray diffraction(XRD),Raman spectroscopy,and scanning electron microscopy(SEM),it was discovered that the introduction of vanadium ions effectively increased the interlayer spacing of MnO_(2),facilitating the transport of ions into the interlayer.Additionally,Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)demonstrated vanadium doped could effectively adjust the electronic structure,decreasing the average oxidation state of manganese,thereby inhibiting the Jahn-Teller effect and significantly enhancing the stability of the VMO-x cathode.The theoretical calculation showed that introducing vanadium ions enhanced the interaction between the main material and Zn^(2+),optimized its electron transport capacity,and led to better electrical conductivity and reaction kinetics of the VMO-5.Benefiting from this,the VMO-5 cathode exhibited an outstanding capacity of 283 mAh/g and maintained a capacity retention rate of 79%after 2000 cycles,demonstrating excellent electrochemical performance.Furthermore,the mechanism of H^(+)/Zn^(2+)co-intercalation/deintercalation was demonstrated through mechanism analysis.Finally,the test results of the pouch cell demonstrated the excellent flexibility and safety exhibited by the VMO-5 make it have great potential in flexible devices.This work presented a novel approach to doping high valence metal ions into manganese-based electrodes for AZIBs.
基金supported by the open research fund of Songshan Lake Materials Laboratory(2023SLABFN18)the Anhui Provincial Natural Science Foundation(2308085QB46)+2 种基金the Scientific Research Foundation of Education Department of Anhui Province of China(2022AH010025,2023AH051109)the Key Research and Development Program of Anhui Province of China(2022l07020011)The open research fund of the Anhui Key Lab of Metal Material and Processing(RZ2200002901)。
文摘Aqueous zinc-ion batteries(AZIBs)have regained interest due to their inherent safety and costeffectiveness.However,the zinc anode is notorious for side reactions and dendrite growth,which plague the practical application of AZIBs.Adjusting the interfacial pH to reduce the by-products has been proven to be effective in protecting the zinc anode.Nevertheless,the dynamic regulation of the inherently unstable zinc interface during prolonged cycling remains a significant challenge.Herein,zwitterionic N-tris(hydroxymethyl)methylglycine(TMG)integrated with negative-COO^(-)and positive NH_(2)^(+)groups is proposed to stabilize the Zn anode and extend the lifespan as a self-regulating interfacial additive.The anionic portion serves as a trapping site to balance the interfacial pH and thus mitigate the unintended side reactions.Simultaneously,the NH_(2)^(+)cations are anchored on the zinc surface,forming a water-shielding,zincophilic molecular layer that guides three-dimensional diffusion and promotes uniform electro-deposition.Thus,an average plating efficiency of 99.74%over 3300 cycles at a current density of2 mA cm^(-2)is achieved.Notably,the TMG additive actualizes ultralong life in Zn‖Zn symmetrical cells(5500 h,exceeding 229 days,1 mA cm^(-2)/1 mA h cm^(-2)),and enables the Zn‖I_(2)cells to reach capacity retention rate of 89.4%after 1000 cycles at 1 A g^(-1).
基金Project(2018YFC1900403) supported by the National Key Research and Development Program of ChinaProject(CX20210197) supported by the Postgraduate Scientific Research Innovation Project of Hunan Province,China+1 种基金Project(202206370103) supported by the China Scholarship CouncilProject(2021zzts0115) supported by the Fundamental Research Funds for the Central Universities,China。
文摘The goethite residue generated from zinc hydrometallurgy is classified as hazardous solid waste,produced in large quantities,and results in significant zinc loss.The study was conducted on removing iron from FeSO_(4)-ZnSO_(4) solution,employing seed-induced nucleation methods.Analysis of the iron removal rate,residue structure,morphology,and elemental composition involved ICP,XRD,FT-IR,and SEM.The existing state of zinc was investigated by combining step-by-step dissolution using hydrochloric acid.Concurrently,iron removal tests were extended to industrial solutions to assess the influence of seeds and solution pH on zinc loss and residue yield.The results revealed that seed addition increased the iron removal rate by 3%,elevated the residual iron content by 6.39%,and mitigated zinc loss by 29.55%in the simulated solution.Seed-induced nucleation prevented excessive nuclei formation,fostering crystal stable growth and high crystallinity.In addition,the zinc content of surface adsorption and crystal internal embedding in the residue was determined,and the zinc distribution on the surface was dense.In contrast,the total amount of zinc within the crystal was higher.The test results in the industrial solution demonstrated that the introduction of seeds expanded the pH range for goethite formation and growth,and the zinc loss per ton of iron removed was reduced by 50.91 kg(34.12%)and the iron residue reduced by 0.17 t(8.72%).
基金financially supported by the Science and Technology Development Project of Henan Province,China(No.242102241042)the Joint Fund of Henan Province Science and Technology R&D Program(No.225200810093)+1 种基金the Startup Research of Henan Academy of Sciences(No.231817001)the Key Innovation Projects for Postgraduates of Henan Academy of Sciences(No.24331712)。
文摘Aqueous zinc-ion batteries are regarded as promising electrochemical energy-storage systems for various applications because of their high safety,low costs,and high capacities.However,dendrite formation and side reactions during zinc plating or stripping greatly reduce the capacity and cycle life of a battery and subsequently limit its practical application.To address these issues,we modified the surface of a zinc anode with a functional bilayer composed of zincophilic Cu and flexible polymer layers.The zincophilic Cu interfacial layer was prepared through CuSO_(4)solution pretreatment to serve as a nucleation site to facilitate uniform Zn deposition.Meanwhile,the polymer layer was coated onto the Cu interface layer to serve as a protective layer that would prevent side reactions between zinc and electrolytes.Benefiting from the synergistic effect of the zincophilic Cu and protective polymer layers,the symmetric battery exhibits an impressive cycle life,lasting over 2900 h at a current density of 1 m A·cm^(-2)with a capacity of 1 m A·h·cm^(-2).Moreover,a full battery paired with a vanadium oxide cathode achieves a remarkable capacity retention of 72%even after 500 cycles.
基金the financial support from the National Natural Science Foundation of China(Nos.52125202 and 22078028)the Jiangsu Provincial Science and Technology Plan Project Youth Fund(Nos.BK20230639 and BK20230640)+1 种基金the Changzhou University College Student Innovation and Entrepreneurship Training Program(No.202410292098Y)the Changzhou University College Student Science and Technology Innovation Fund of the School of Petrochemical Engineering.
文摘To address the cycling stability of zinc-ion batteries resulting from zinc dendrites,this work proposes the utilization of sulfonic groups to modulate the de-solvation and adsorption energy of zinc ions,achieving the horizontal growth of zinc dendrites.Using polyacrylamide(PAM)and carboxymethyl cellulose(CMC)composite gels as modification targets,sodium dodecyl sulfate(SDS)provides the sulfonic group,the PAM/CMC/SDS gel electrolyte exhibits a coordination number as low as 0.19 and a desolvation energy reaching up to 2.73 eV.Based on this,the gel electrolyte exhibits a wide operating voltage range of 2.93 V,effectively suppressing both hydrogen and oxygen evolution reactions.More importantly,zinc ions in the PAM/CMC/SDS electrolytes preferentially grow along the zinc(002)plane,characterized by higher adsorption energy,leading to the formation of a uniform and dense zinc deposit,rather than vertical growth on the(100)crystal plane.The successfully induced directional deposition of zinc crystals and mitigation of hydrogen evolution enables the PAM/CMC/SDS gel electrolyte to achieve remarkable cycling stability in Zn||Zn symmetrical cells for up to 2800 h,In addition,the Zn||MnO_(2) asymmetric battery exhibits a specific capacity of 334 mAh g^(-1),accompanied by excellent rate performance,which ensures the reliability and durability of the quasi-solid-state zinc-ion battery based on the gel electrolyte in dynamic practical applications.
