In order to solve the problem of poor formability caused by different materials and properties in the process of tailor-welded sheets forming,a forming method was proposed to change the stress state of tailor-welded s...In order to solve the problem of poor formability caused by different materials and properties in the process of tailor-welded sheets forming,a forming method was proposed to change the stress state of tailor-welded sheets by covering the tailor-welded sheets with better plastic properties overlapping sheets.At the same time,the interface friction effect between the overlapping and tailor-welded sheets was utilized to control the stress magnitude and further improve the formability and quality of the tailor-welded sheets.In this work,the bulging process of the tailor-welded overlapping sheets was taken as the research object.Aluminum alloy tailor-welded overlapping sheets bulging specimens were studied by a combination of finite element analysis and experimental verification.The results show that the appropriate use of interface friction between tailor-welded and overlapping sheets can improve the formability of tailor-welded sheets and control the flow of weld seam to improve the forming quality.When increasing the interface friction coefficient on the side of tailor-welded sheets with higher strength and decreasing that on the side of tailor-welded sheets with lower strength,the deformation of the tailor-welded sheets are more uniform,the offset of the weld seam is minimal,the limit bulging height is maximal,and the forming quality is optimal.展开更多
Fluid channeling caused by seal failure at the cement sheath-formation interface during fracturing is a severe problem in oil gas wells.In this study,a novel model was developed to evaluate interface sealing integrity...Fluid channeling caused by seal failure at the cement sheath-formation interface during fracturing is a severe problem in oil gas wells.In this study,a novel model was developed to evaluate interface sealing integrity.The model's accuracy was verified based on a self-developed interface seal evaluation device and an experiment.Subsequently,the interface seal under different formation conditions was investigated using this model.The theoretical calculation showed that for a cement sheath-carbonate formation interface,the channeling of acid-fracturing fluid caused interface seal failure and sustained casing pressure in the annulus space between the technical casing and formation.Mutual channeling between the fracturing sections occurred at the cement sheathshale formation interface during fracturing.For a sandstone formation,the interface seal failure caused the channeling between a water-bearing formation and a sandstone formation.Aiming at different formation conditions,the mechanical properties requirements of Young's modulus and Poisson's ratio of cement sheath were proposed respectively to ensure its seal integrity.The proposed model and method can be used to evaluate and optimize sealing integrity during fracturing.展开更多
Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods...Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods An invasive BCI was implanted in the left visual cortex of 4-week-old Sprague–Dawley rats.Multimodal imaging techniques,including micro-CT and 9.0 T MRI,were used to acquire images of the rat cranial bone structure,vascular distribution,brain tissue functional zones,and BCI device before and after implantation.Using 3D-slicer software,the images were fused through spatial transformations,followed by image segmentation and 3D model reconstruction.The HoloLens platform was employed for MR visualization.Results This study constructed a multimodal imaging atlas for rats that included the skull,brain tissue,arterial tissue,and BCI device coupled with MR technology to create an interactive 3D anatomical model.Conclusions This multimodal 3D atlas provides an objective and stable reference for exploring complex relationships between brain tissue structure and function,enhancing the understanding of the operational principles of BCIs.This is the first multimodal 3D imaging atlas related to a BCI created using Sprague–Dawley rats.展开更多
Surface passivation with organic ammoniums improves perovskite solar cell performance by forming 2D/quasi-2D structures or adsorbing onto surfaces.However,complexity from mixed phases can trigger phase transitions,com...Surface passivation with organic ammoniums improves perovskite solar cell performance by forming 2D/quasi-2D structures or adsorbing onto surfaces.However,complexity from mixed phases can trigger phase transitions,compromising stability.The control of surface dimensionality after organic ammonium passivation presents significant importance to device stability.In this study,we developed a poly-fluorination strategy for surface treatment in perovskite solar cells,which enabled a high and durable interfacial phase purity after surface passivation.The locked surface dimensionality of perovskite was achieved through robust interaction between the poly-fluorinated ammoniums and the perovskite surface,along with the steric hindrance imparted by fluorine atoms,reducing its reactivity and penetration capabilities.The high hydrophobicity of the poly-fluorinated surface also aids in moisture resistance of the perovskite layer.The champion device achieved a power conversion efficiency(PCE)of 25.2% with certified 24.6%,with 90% of its initial PCE retained after approximately 1200 h under continuous 1-sun illumination,and over 14,400 h storage stability and superior stability under high-temperature operation.展开更多
Bismuth oxyselenide(Bi_(2)O_(2)Se),a novel quasi-two-dimensional charge-carrying semiconductor,is recognized as one of the most promising emerging platforms for next-generation semiconductor devices.Recent advancement...Bismuth oxyselenide(Bi_(2)O_(2)Se),a novel quasi-two-dimensional charge-carrying semiconductor,is recognized as one of the most promising emerging platforms for next-generation semiconductor devices.Recent advancements in the development of diverse Bi_(2)O_(2)Se heterojunctions have unveiled extensive potential applications in both electronics and optoelectronics.However,achieving an in-depth understanding of band alignment and particularly interface dynamics remains a significant challenge.In this study,we conduct a comprehensive experimental investigation into band alignment utilizing high-resolution X-ray photoelectron spectroscopy(HRXPS),while also thoroughly discussing the properties of interface states.Our findings reveal that ultrathin films of Bi_(2)O_(2)Se grown on SrTiO_(3)(with TiO_(2)(001)termination)exhibit Type-I(straddling gap)band alignment characterized by a valence band offset(VBO)of approximately 1.77±0.04 eV and a conduction band offset(CBO)around 0.68±0.04 eV.Notably,when accounting for the influence of interface states,the bands at the interface display a herringbone configuration due to substantial built-in electric fields,which markedly deviate from conventional band alignments.Thus,our results provide valuable insights for advancing high-efficiency electronic and optoelectronic devices,particularly those where charge transfer is highly sensitive to interface states.展开更多
Aqueous alkaline zinc batteries have received widespread attention owing to its higher electrode potential and faster reaction kinetics compared to in mild aqueous electrolyte.However,Zn metal anode in alkaline electr...Aqueous alkaline zinc batteries have received widespread attention owing to its higher electrode potential and faster reaction kinetics compared to in mild aqueous electrolyte.However,Zn metal anode in alkaline electrolyte usually suffers more severe corrosion,passivation,and hydrogen evolution reaction.Herein,an interface chemical regulation strategy employs to in-situ construct a Zn-Sn alloy layer during cycling.The K_(2)[Sn(OH)_(6)]has been introduced into the electrolyte as the deposition overpotential of Zn and Sn in alkaline electrolyte is approximate leading to their simultaneously plating.The Zn-Sn alloy layer not only prevents Zn anode corrosion and suppresses the dendrite growth but also promotes the reaction kinetics.Therefore,the Zn||Zn cell exhibits a long life of 400 h in alkaline electrolyte about 20 times of that in without K_(2)[Sn(OH)_(6)]electrolyte.Moreover,the N-NCP@PQ_(x)||Zn full cell displays a superior cycle performance of 4000 cycles with 93%capacity retention at 2 A/g.展开更多
Intelligent polymers have garnered significant attention for enhancing component safety,but there are still obstacles to achieving rapid self-healing at room temperature.Here,inspired by the microscopic layered struct...Intelligent polymers have garnered significant attention for enhancing component safety,but there are still obstacles to achieving rapid self-healing at room temperature.Here,inspired by the microscopic layered structure of mother-of-pearl,we have developed a biomimetic composite with high strength and self-repairing capabilities,achieved by the ordered arrangement of pearl-like structures within a flexible polyurethane matrix and GO nanosheets functionalized by in situ polymerization of carbon dots(CDs),this biomimetic interface design approach results in a material strength of 8 MPa and toughness(162 MJ m^(-3)),exceptional ductile properties(2697%elongation at break),and a world-record the fast and high-efficient self-healing ability at room temperature(96%at 25℃for 60 min).Thereby these composites overcome the limitations of dynamic composite networks of graphene that struggle to balance repair capability and robustness,and the CDs in situ loaded in the interfacial layer inhibit corrosion and prevent damage to the metal substrate during the repair process.(TheƵ_(f=0.01Hz)was 1.81×10^(9)Ωcm^(2)after 2 h of healing).Besides,the material can be intelligently actuated and shape memory repaired,which provides reliable protection for developments in smart and flexible devices such as robots and electronic skins.展开更多
Halide solid-state electrolytes(SSEs)have become a new research focus for all-solid-state batteries because of their significant safety advantages,high ionic conductivity,high-voltage stability,and good ductility.None...Halide solid-state electrolytes(SSEs)have become a new research focus for all-solid-state batteries because of their significant safety advantages,high ionic conductivity,high-voltage stability,and good ductility.Nonetheless,stability issues are a key barrier to their practical application.In past reports,the analysis of halide electrolyte stability and its enhancement methods lacked relevance,which limited the design and optimization of halide solid electrolytes.This review focus on stability issues from a chemical,electrochemical,and interfacial point of view,with particular emphasis on the interaction of halide SSEs with anode and cathode interfaces.By focusing on innovative strategies to address the stability issue,this paper aims to further deepen the understanding and development of halide all-solid-state batteries by proposing to focus research efforts on improving their stability in order to address their inherent challenges and match higher voltage cathodes,paving the way for their wider application in the next generation of energy storage technologies.展开更多
As-rolled titanium/steel composite plate has poor plastic deformation ability,and it is difficult to achieve synergistic deformation,especially for dissimilar metals with very different plastic deformation abilities.T...As-rolled titanium/steel composite plate has poor plastic deformation ability,and it is difficult to achieve synergistic deformation,especially for dissimilar metals with very different plastic deformation abilities.The 304/TC4 composite plate with corrugated interface was manufactured using the asymmetric rolling with local strong stress method.The changing rules of bonding strength and synergistic deformation ability of corrugated interface under different annealing process parameters were studied.The results show that in the range of 550–850℃,especially after the temperature exceeds 650℃,with increasing the annealing temperature and time,the difference of microstructure between peak and trough positions increases,and the bonding strength of the composite plate decreases gradually.Especially,the interfacial bonding strength of the plate sharply decreases at 750℃ due to the rapid growth of intermetallic compounds at the interface and the diffusion holes caused by the difference of element diffusion.The 304/TC4 composite plate has the best synergistic deformation ability when annealing at 650℃/2 h,with the elongation reaching 35%and the tensile strength decreasing to 852 MPa.High interfacial bonding strength and moderate matrix recovery are important prerequisites for synergistic deformation of composite plates.展开更多
In order to maximize the advantages of high energy density in Li metal batteries,it is necessary to match cathode materials with high specific capacities.Ni-rich layered oxides have been shown to reversibly embed more...In order to maximize the advantages of high energy density in Li metal batteries,it is necessary to match cathode materials with high specific capacities.Ni-rich layered oxides have been shown to reversibly embed more Li+during charge and discharge processes due to the increased Ni content in their crystal structure,thereby providing higher energy density.However,a significant challenge associated with Ni-rich layered oxide cathodes is the crossover effect,which arises from the dissolution of Ni^(2+)from the cathode,leading to a rapid decline in battery capacity.Through the delocalization-induced effect of solvent molecules,Ni^(2+)is transformed into a fluorinated transition metal inorganic phase layer,thereby forming a corrosion-resistant Li metal interface.This prevents solvent molecules from being reduced and degraded by Li metal anode.The surface of the Li metal anode exhibits a smooth and flat deposition morphology after long-term cycling.Furthermore,the introduction of Ni^(2+)can enhance the concentration gradient of transition metal ions near the cathode,thereby suppressing the dissolution process of transition metal ions.Even the NCM955 cathode with a mass load of 22 mg cm^(−2)also has great capacity retention after cycling.The Ni^(2+)induced by high electronegative functional groups of solvent under the electron delocalization effect,preventing the Ni ions dissolution of cathode and constructing a corrosion-resistant Li metal interface layer.This work provides new insights into suppressing crossover effects in Li metal batteries with high nickel cathodes.展开更多
Exploring effective iridium(Ir)-based electrocatalysts with stable iridium centers is highly desirable for oxygen evolution reaction(OER).Herein,we regulated the incorporation manner of Ir in Co_(3)O_(4)support to sta...Exploring effective iridium(Ir)-based electrocatalysts with stable iridium centers is highly desirable for oxygen evolution reaction(OER).Herein,we regulated the incorporation manner of Ir in Co_(3)O_(4)support to stabilize the Ir sites for effective OER.When anchored on the surface of Co_(3)O_(4)in the form of Ir(OH)_6 species,the created Ir-OH-Co interface leads to a limited stability and poor acidic OER due to Ir leaching.When doped into Co_(3)O_(4)lattice,the analyses of X-ray absorption spectroscopy,in-situ Raman,and OER measurements show that the partially replacement of Co in Co_(3)O_(4)by Ir atoms inclines to cause strong electronic effect and activate lattice oxygen in the presence of Ir-O-Co interface,and simultaneously master the reconstruction effect to mitigate Ir dissolution,realizing the improved OER activity and stability in alkaline and acidic environments.As a result,Ir_(lat)@Co_(3)O_(4)with Ir loading of 3.67 wt%requires 294±4 mV/285±3 mV and 326±2 mV to deliver 10 mA cm^(-2)in alkaline(0.1 M KOH/1.0 M KOH)and acidic(0.5 M H_(2)SO_(4))solution,respectively,with good stability.展开更多
A suitable interface between the electrode and electrolyte is crucial in achieving highly stable electrochemical performance for Li-ion batteries,as facile ionic transport is required.Intriguing research and developme...A suitable interface between the electrode and electrolyte is crucial in achieving highly stable electrochemical performance for Li-ion batteries,as facile ionic transport is required.Intriguing research and development have recently been conducted to form a stable interface between the electrode and electrolyte.Therefore,it is essential to investigate emerging knowledge and contextualize it.The nanoengineering of the electrode-electrolyte interface has been actively researched at the electrode/electrolyte and interphase levels.This review presents and summarizes some recent advances aimed at nanoengineering approaches to build a more stable electrode-electrolyte interface and assess the impact of each approach adopted.Furthermore,future perspectives on the feasibility and practicality of each approach will also be reviewed in detail.Finally,this review aids in projecting a more sustainable research pathway for a nanoengineered interphase design between electrode and electrolyte,which is pivotal for high-performance,thermally stable Li-ion batteries.展开更多
Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent.Multi-component interface engineering is con...Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent.Multi-component interface engineering is considered an effective means to achieve high-efficiency EMW absorption.However,interface modulation engineering has not been fully discussed and has great potential in the field of EMW absorption.In this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal reduction.By utilizing the different properties of different substances,rich heterogeneous interfaces are constructed.This effectively promotes charge transfer and enhances interfacial polarization and conduction loss.The prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy resin.The minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 GHz.Moreover,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel surfaces.Therefore,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.展开更多
The requisite functions of a bentonite buffer in a deep geological repository depend on the sealing/healing of bentonite interfaces,with particular emphasis on the self-healing(automatic healing upon wetting)of assemb...The requisite functions of a bentonite buffer in a deep geological repository depend on the sealing/healing of bentonite interfaces,with particular emphasis on the self-healing(automatic healing upon wetting)of assembled bentonite-bentonite interfaces.This study determined the shear resistance(including the peak shear strength and secant modulus)of densely compacted Gaomiaozi(GMZ)bentonite and its assembled interface after confined water saturation.The effect of bentonite dry density and saturation time on the shear resistance of saturated healed interfaces was elucidated,and the interfacial self-healing capacity was assessed.The results indicate that the shear resistance of the saturated healed interfaces increased with the bentonite dry density but had a non-monotonic correlation with the saturation time.For a given dry density of the bentonite,the saturated healed interface exhibits a lower peak shear strength than the saturated intact bentonite but a higher peak shear strength than the saturated separated interface.The saturated healed and separated interfaces have comparable shear moduli(secant moduli),which are lower than that of the saturated intact bentonite.The saturated healed interfaces display smooth shear failure planes,while the saturated assembled interfaces and intact bentonite exhibit comparable frictional angles.This indicates that interfacial self-healing plays a pivotal role in enhancing interfacial peak shear strength by facilitating microstructural bonding at the assembled interface.Finally,it can be stated that densely compacted GMZ bentonite has a robust interfacial self-healing capacity in terms of shear resistance.These findings contribute to the design of the bentonite buffer and facilitate the evaluation of its safe operation at specified disposal ages.展开更多
An integral quality control(QC)procedure that integrates various QC methods and considers the design indexes and operational status of the instruments for the observations of drifting air-sea interface buoy was develo...An integral quality control(QC)procedure that integrates various QC methods and considers the design indexes and operational status of the instruments for the observations of drifting air-sea interface buoy was developed in the order of basic in-spection followed by targeted QC.The innovative method of combining a moving Hampel filter and local anomaly detection com-plies with statistical laws and physical processes,which guarantees the QC performance of meteorological variables.Two sets of observation data were used to verify the applicability and effectiveness of the QC procedure,and the effect was evaluated using the observations of the Kuroshio Extension Observatory buoy as the reference.The results showed that the outliers in the time series can be correctly identified and processed,and the quality of data improved significantly.The linear correlation between the quality-controlled observations and the reference increased,and the difference decreased.The correlation coefficient of wind speed before and after QC increased from 0.77 to 0.82,and the maximum absolute error decreased by approximately 2.8ms^(-1).In addition,air pressure and relative humidity were optimized by 10^(-3)–10^(-2) orders of magnitude.For the sea surface temperature,the weight of coefficients of the continuity test algorithm was optimized based on the sea area of data acquisition,which effectively expanded the applicability of the algorithm.展开更多
TiO_(2)-supported V_(2)O_(5)catalysts are commonly used in NO_(x)reduction with ammonia due to their robust catalytic performance.Over these catalysts,it is generally considered that the active species are mainly deri...TiO_(2)-supported V_(2)O_(5)catalysts are commonly used in NO_(x)reduction with ammonia due to their robust catalytic performance.Over these catalysts,it is generally considered that the active species are mainly derived from the vanadia species rather than the intrinsic structure of V-O-Ti entities,namely the interface sites.To reveal the role of V-O-Ti entities in NH_(3)-SCR,herein,we prepared TiO_(2)/V_(2)O_(5)catalysts and demonstrated that V-O-Ti entities were more active for NO_(x)reduction under wet conditions than the V sites(V=O)working alone.On the V-O-Ti entities,kinetic measurements and first principles calculations revealed that NH_(3)activation exhibited a much lower energy barrier than that on V=O sites.Under wet conditions,the V-O-Ti interface significantly inhibited the transformation of V=O to V-OH sites thus benefiting NH_(3)activation.Under wet conditions,meanwhile,the migration of NH_(4)^(+)from Ti site neighboring the V-O-Ti interface to Ti site of the V-O-Ti interface was exothermic;thus,V-O-Ti entities together with neighboring Ti sites could serve as channels linking NH_(3)pool and active centers for activation of NH_(4)^(+).This finding reveals that the V-O-Ti interface sites on V-based catalysts play a crucial role in NO_(x)removal under realistic conditions,providing a new perspective on NH_(3)-SCR mechanism.展开更多
The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggre...The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics simulation.The diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are included.The simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6%and 70.5%respectively after 110#asphalt and 130#asphalt are pre-wetted.The concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more uniform.According to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5%after pre-wetting.According to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance.展开更多
Developing efficient,stable,and low-cost electrocatalysts toward alkaline hydrogen evolution reactions(HER)in water electrolysis driven by renewable energy sources has always been discussed over the past decade.To red...Developing efficient,stable,and low-cost electrocatalysts toward alkaline hydrogen evolution reactions(HER)in water electrolysis driven by renewable energy sources has always been discussed over the past decade.To reduce energy consumption and improve energy utilization efficiency,highly active electrocatalytic electrodes are essential for lowering the energy barrier of the HER.Catalysts featuring multiple interfaces have attracted significant research interest recently due to their enhanced physicochemical properties.Reasonable interface modulation can optimize intermediate active species’adsorption energy,improve catalytic active sites’selectivity,and enhance intrinsic catalytic activity.Here,we provided an overview of the latest advancement in interface engineering for efficient HER catalysts.We begin with a brief introduction to the fundamental concepts and mechanisms of alkaline HER.Then,we analyze and discuss current regulating principles in interface engineering for HER catalysts,focusing particularly on optimizing electron structures and modulating microenvironment reactions.Finally,the challenges and further prospects of interface catalysts for future applications are discussed.展开更多
Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy density.Nevertheless,the poor rate performance and limited cycling life remain unresolved through conventional approaches that...Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy density.Nevertheless,the poor rate performance and limited cycling life remain unresolved through conventional approaches that involve carbon composites or nanostructures,primarily due to the un-controllable effects arising from the substantial formation of a solid electrolyte interphase(SEI)during the cycling.Here,an ultra-thin and homogeneous Ti doping alumina oxide catalytic interface is meticulously applied on the porous Si through a synergistic etching and hydrolysis process.This defect-rich oxide interface promotes a selective adsorption of fluoroethylene carbonate,leading to a catalytic reaction that can be aptly described as“molecular concentration-in situ conversion”.The resultant inorganic-rich SEI layer is electrochemical stable and favors ion-transport,particularly at high-rate cycling and high temperature.The robustly shielded porous Si,with a large surface area,achieves a high initial Coulombic efficiency of 84.7%and delivers exceptional high-rate performance at 25 A g^(−1)(692 mAh g^(−1))and a high Coulombic efficiency of 99.7%over 1000 cycles.The robust SEI constructed through a precious catalytic layer promises significant advantages for the fast development of silicon-based anode in fast-charging batteries.展开更多
The poor reversibility and stability of Zn anodes greatly restrict the practical application of aqueous Zn-ion batteries(AZIBs),resulting from the uncontrollable dendrite growth and H_(2)O-induced side reactions durin...The poor reversibility and stability of Zn anodes greatly restrict the practical application of aqueous Zn-ion batteries(AZIBs),resulting from the uncontrollable dendrite growth and H_(2)O-induced side reactions during cycling.Electrolyte additive modification is considered one of the most effective and simplest methods for solving the aforementioned problems.Herein,the pyridine derivatives(PD)including 2,4-dihydroxypyridine(2,4-DHP),2,3-dihydroxypyridine(2,3-DHP),and 2-hydroxypyrdine(2-DHP),were em-ployed as novel electrolyte additives in ZnSO_(4)electrolyte.Both density functional theory calculation and experimental findings demonstrated that the incorporation of PD additives into the electrolyte effectively modulates the solvation structure of hydrated Zn ions,thereby suppressing side reactions in AZIBs.Ad-ditionally,the adsorption of PD molecules on the zinc anode surface contributed to uniform Zn deposi-tion and dendrite growth inhibition.Consequently,a 2,4-DHP-modified Zn/Zn symmetrical cell achieved an extremely long cyclic stability up to 5650 h at 1 mA cm^(-2).Furthermore,the Zn/NH_(4)V_(4)O_(10)full cell with 2,4-DHP-containing electrolyte exhibited an outstanding initial capacity of 204 mAh g^(-1),with a no-table capacity retention of 79%after 1000 cycles at 5 A g^(-1).Hence,this study expands the selection of electrolyte additives for AZIBs,and the working mechanism of PD additives provides new insights for electrolyte modification enabling highly reversible zinc anode.展开更多
基金Funded by the National Natural Science Foundation of China(Nos.52075347,51575364)and the Natural Science Foundation of Liaoning Provincial(No.2022-MS-295)。
文摘In order to solve the problem of poor formability caused by different materials and properties in the process of tailor-welded sheets forming,a forming method was proposed to change the stress state of tailor-welded sheets by covering the tailor-welded sheets with better plastic properties overlapping sheets.At the same time,the interface friction effect between the overlapping and tailor-welded sheets was utilized to control the stress magnitude and further improve the formability and quality of the tailor-welded sheets.In this work,the bulging process of the tailor-welded overlapping sheets was taken as the research object.Aluminum alloy tailor-welded overlapping sheets bulging specimens were studied by a combination of finite element analysis and experimental verification.The results show that the appropriate use of interface friction between tailor-welded and overlapping sheets can improve the formability of tailor-welded sheets and control the flow of weld seam to improve the forming quality.When increasing the interface friction coefficient on the side of tailor-welded sheets with higher strength and decreasing that on the side of tailor-welded sheets with lower strength,the deformation of the tailor-welded sheets are more uniform,the offset of the weld seam is minimal,the limit bulging height is maximal,and the forming quality is optimal.
基金the financial support provide by the National Natural Science Foundation of China(No.52304009)the Natural Science Foundation of Sichuan(No.2023NSFSC0927)the Sichuan Province Innovative Talent Funding Project for Postdoctoral Fellows(No.BX202305)。
文摘Fluid channeling caused by seal failure at the cement sheath-formation interface during fracturing is a severe problem in oil gas wells.In this study,a novel model was developed to evaluate interface sealing integrity.The model's accuracy was verified based on a self-developed interface seal evaluation device and an experiment.Subsequently,the interface seal under different formation conditions was investigated using this model.The theoretical calculation showed that for a cement sheath-carbonate formation interface,the channeling of acid-fracturing fluid caused interface seal failure and sustained casing pressure in the annulus space between the technical casing and formation.Mutual channeling between the fracturing sections occurred at the cement sheathshale formation interface during fracturing.For a sandstone formation,the interface seal failure caused the channeling between a water-bearing formation and a sandstone formation.Aiming at different formation conditions,the mechanical properties requirements of Young's modulus and Poisson's ratio of cement sheath were proposed respectively to ensure its seal integrity.The proposed model and method can be used to evaluate and optimize sealing integrity during fracturing.
基金supported by the National Natural Science Foundation of China(No.82172524 and No.81974355)National Innovation Platform Development Program(No.2020021105012440),China+3 种基金Major Program of Hubei Province(No.2021BEA161),ChinaMajor Key Project of Hubei Province(No.JD2023BAA005),ChinaWuhan Union Hospital Free Innovation Preliminary Research Fund(No.2024XHYN047),ChinaJoint Funds for the Innovation of Science and Technology(No.2024Y9062),Fujian Province,China.
文摘Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods An invasive BCI was implanted in the left visual cortex of 4-week-old Sprague–Dawley rats.Multimodal imaging techniques,including micro-CT and 9.0 T MRI,were used to acquire images of the rat cranial bone structure,vascular distribution,brain tissue functional zones,and BCI device before and after implantation.Using 3D-slicer software,the images were fused through spatial transformations,followed by image segmentation and 3D model reconstruction.The HoloLens platform was employed for MR visualization.Results This study constructed a multimodal imaging atlas for rats that included the skull,brain tissue,arterial tissue,and BCI device coupled with MR technology to create an interactive 3D anatomical model.Conclusions This multimodal 3D atlas provides an objective and stable reference for exploring complex relationships between brain tissue structure and function,enhancing the understanding of the operational principles of BCIs.This is the first multimodal 3D imaging atlas related to a BCI created using Sprague–Dawley rats.
基金grants(grant numbers LR24F040001,LD24E020001 and LD22E020002)from the Natural Science Foundation of Zhejiang Province of Chinathe National Natural Science Foundation of China(grant number 62274146)+1 种基金the support of Key R&D Program of Zhejiang(2024SSYS0061)supported by the Fundamental Research Funds for the Central Universities(226-2022-00200).
文摘Surface passivation with organic ammoniums improves perovskite solar cell performance by forming 2D/quasi-2D structures or adsorbing onto surfaces.However,complexity from mixed phases can trigger phase transitions,compromising stability.The control of surface dimensionality after organic ammonium passivation presents significant importance to device stability.In this study,we developed a poly-fluorination strategy for surface treatment in perovskite solar cells,which enabled a high and durable interfacial phase purity after surface passivation.The locked surface dimensionality of perovskite was achieved through robust interaction between the poly-fluorinated ammoniums and the perovskite surface,along with the steric hindrance imparted by fluorine atoms,reducing its reactivity and penetration capabilities.The high hydrophobicity of the poly-fluorinated surface also aids in moisture resistance of the perovskite layer.The champion device achieved a power conversion efficiency(PCE)of 25.2% with certified 24.6%,with 90% of its initial PCE retained after approximately 1200 h under continuous 1-sun illumination,and over 14,400 h storage stability and superior stability under high-temperature operation.
基金supported by the National Natural Science Foundation of China(Nos.52072059,12304078,12274061 and 11774044)the Natural Science Foundation of Sichuan Province(No.2024NSFSC1384).
文摘Bismuth oxyselenide(Bi_(2)O_(2)Se),a novel quasi-two-dimensional charge-carrying semiconductor,is recognized as one of the most promising emerging platforms for next-generation semiconductor devices.Recent advancements in the development of diverse Bi_(2)O_(2)Se heterojunctions have unveiled extensive potential applications in both electronics and optoelectronics.However,achieving an in-depth understanding of band alignment and particularly interface dynamics remains a significant challenge.In this study,we conduct a comprehensive experimental investigation into band alignment utilizing high-resolution X-ray photoelectron spectroscopy(HRXPS),while also thoroughly discussing the properties of interface states.Our findings reveal that ultrathin films of Bi_(2)O_(2)Se grown on SrTiO_(3)(with TiO_(2)(001)termination)exhibit Type-I(straddling gap)band alignment characterized by a valence band offset(VBO)of approximately 1.77±0.04 eV and a conduction band offset(CBO)around 0.68±0.04 eV.Notably,when accounting for the influence of interface states,the bands at the interface display a herringbone configuration due to substantial built-in electric fields,which markedly deviate from conventional band alignments.Thus,our results provide valuable insights for advancing high-efficiency electronic and optoelectronic devices,particularly those where charge transfer is highly sensitive to interface states.
基金supported by Joint Funds of the National Natural Science Foundation of China(No.U22A20140)University of Jinan Disciplinary Cross-Convergence Construction Project 2023(No.XKJC-202309)+3 种基金Jinan City-School Integration Development Strategy Project(No.JNSX2023015)Independent Cultivation Program of Innovation Team of Ji’nan City(No.202333042)the Youth Innovation Group Plan of Shandong Province(No.2022KJ095)Special thanks to the Optical microscopy(Yuescope,YM710R).
文摘Aqueous alkaline zinc batteries have received widespread attention owing to its higher electrode potential and faster reaction kinetics compared to in mild aqueous electrolyte.However,Zn metal anode in alkaline electrolyte usually suffers more severe corrosion,passivation,and hydrogen evolution reaction.Herein,an interface chemical regulation strategy employs to in-situ construct a Zn-Sn alloy layer during cycling.The K_(2)[Sn(OH)_(6)]has been introduced into the electrolyte as the deposition overpotential of Zn and Sn in alkaline electrolyte is approximate leading to their simultaneously plating.The Zn-Sn alloy layer not only prevents Zn anode corrosion and suppresses the dendrite growth but also promotes the reaction kinetics.Therefore,the Zn||Zn cell exhibits a long life of 400 h in alkaline electrolyte about 20 times of that in without K_(2)[Sn(OH)_(6)]electrolyte.Moreover,the N-NCP@PQ_(x)||Zn full cell displays a superior cycle performance of 4000 cycles with 93%capacity retention at 2 A/g.
基金support of the Jiangsu Provincial Department of Science and Technology Innovation Support Program(No.BK20222004)the National Natural Science Foundation of China(No.52201077).
文摘Intelligent polymers have garnered significant attention for enhancing component safety,but there are still obstacles to achieving rapid self-healing at room temperature.Here,inspired by the microscopic layered structure of mother-of-pearl,we have developed a biomimetic composite with high strength and self-repairing capabilities,achieved by the ordered arrangement of pearl-like structures within a flexible polyurethane matrix and GO nanosheets functionalized by in situ polymerization of carbon dots(CDs),this biomimetic interface design approach results in a material strength of 8 MPa and toughness(162 MJ m^(-3)),exceptional ductile properties(2697%elongation at break),and a world-record the fast and high-efficient self-healing ability at room temperature(96%at 25℃for 60 min).Thereby these composites overcome the limitations of dynamic composite networks of graphene that struggle to balance repair capability and robustness,and the CDs in situ loaded in the interfacial layer inhibit corrosion and prevent damage to the metal substrate during the repair process.(TheƵ_(f=0.01Hz)was 1.81×10^(9)Ωcm^(2)after 2 h of healing).Besides,the material can be intelligently actuated and shape memory repaired,which provides reliable protection for developments in smart and flexible devices such as robots and electronic skins.
基金supported by the National Natural Science Foundation of China(nos.22309027 and 52374301)the Shijiazhuang Basic Research Project(nos.241790667A and 241790907A)+3 种基金the Fundamental Research Funds for the Central Universities(no.N2523050)the Natural Science Foundation of Hebei Province(no.E2024501010)the Performance subsidy fund for Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province(no.22567627H)the 2024 Hebei Provincial Postgraduate Student Innovation Ability Training Funding Project(no.CXZZSS2025162)。
文摘Halide solid-state electrolytes(SSEs)have become a new research focus for all-solid-state batteries because of their significant safety advantages,high ionic conductivity,high-voltage stability,and good ductility.Nonetheless,stability issues are a key barrier to their practical application.In past reports,the analysis of halide electrolyte stability and its enhancement methods lacked relevance,which limited the design and optimization of halide solid electrolytes.This review focus on stability issues from a chemical,electrochemical,and interfacial point of view,with particular emphasis on the interaction of halide SSEs with anode and cathode interfaces.By focusing on innovative strategies to address the stability issue,this paper aims to further deepen the understanding and development of halide all-solid-state batteries by proposing to focus research efforts on improving their stability in order to address their inherent challenges and match higher voltage cathodes,paving the way for their wider application in the next generation of energy storage technologies.
基金supported by the Major Program of National Natural Science Foundation of China(U22A20188)the Natural Science Foundation of Shanxi Province(202303021224002)+1 种基金the special fund for Science and Technology Innovation Teams of Shanxi Province(202304051001025)the Open Research Fund from the Hai’an and Taiyuan University of Technology Advanced Manufacturing and Intelligent Equipment Industrial Research Institute(2023HA-TYUTKFYF036).
文摘As-rolled titanium/steel composite plate has poor plastic deformation ability,and it is difficult to achieve synergistic deformation,especially for dissimilar metals with very different plastic deformation abilities.The 304/TC4 composite plate with corrugated interface was manufactured using the asymmetric rolling with local strong stress method.The changing rules of bonding strength and synergistic deformation ability of corrugated interface under different annealing process parameters were studied.The results show that in the range of 550–850℃,especially after the temperature exceeds 650℃,with increasing the annealing temperature and time,the difference of microstructure between peak and trough positions increases,and the bonding strength of the composite plate decreases gradually.Especially,the interfacial bonding strength of the plate sharply decreases at 750℃ due to the rapid growth of intermetallic compounds at the interface and the diffusion holes caused by the difference of element diffusion.The 304/TC4 composite plate has the best synergistic deformation ability when annealing at 650℃/2 h,with the elongation reaching 35%and the tensile strength decreasing to 852 MPa.High interfacial bonding strength and moderate matrix recovery are important prerequisites for synergistic deformation of composite plates.
基金the support from Yunnan Fundamental Research Projects(202301BE070001-029,202401CF070129,202501CF070181)National Natural Science Foundation of China(22209012,22479067)Kunming University of Science and Technology Analysis and Testing Fund Support Project(2023T20220172)。
文摘In order to maximize the advantages of high energy density in Li metal batteries,it is necessary to match cathode materials with high specific capacities.Ni-rich layered oxides have been shown to reversibly embed more Li+during charge and discharge processes due to the increased Ni content in their crystal structure,thereby providing higher energy density.However,a significant challenge associated with Ni-rich layered oxide cathodes is the crossover effect,which arises from the dissolution of Ni^(2+)from the cathode,leading to a rapid decline in battery capacity.Through the delocalization-induced effect of solvent molecules,Ni^(2+)is transformed into a fluorinated transition metal inorganic phase layer,thereby forming a corrosion-resistant Li metal interface.This prevents solvent molecules from being reduced and degraded by Li metal anode.The surface of the Li metal anode exhibits a smooth and flat deposition morphology after long-term cycling.Furthermore,the introduction of Ni^(2+)can enhance the concentration gradient of transition metal ions near the cathode,thereby suppressing the dissolution process of transition metal ions.Even the NCM955 cathode with a mass load of 22 mg cm^(−2)also has great capacity retention after cycling.The Ni^(2+)induced by high electronegative functional groups of solvent under the electron delocalization effect,preventing the Ni ions dissolution of cathode and constructing a corrosion-resistant Li metal interface layer.This work provides new insights into suppressing crossover effects in Li metal batteries with high nickel cathodes.
基金supported by the National Natural Science Foundation of China(52150410409).
文摘Exploring effective iridium(Ir)-based electrocatalysts with stable iridium centers is highly desirable for oxygen evolution reaction(OER).Herein,we regulated the incorporation manner of Ir in Co_(3)O_(4)support to stabilize the Ir sites for effective OER.When anchored on the surface of Co_(3)O_(4)in the form of Ir(OH)_6 species,the created Ir-OH-Co interface leads to a limited stability and poor acidic OER due to Ir leaching.When doped into Co_(3)O_(4)lattice,the analyses of X-ray absorption spectroscopy,in-situ Raman,and OER measurements show that the partially replacement of Co in Co_(3)O_(4)by Ir atoms inclines to cause strong electronic effect and activate lattice oxygen in the presence of Ir-O-Co interface,and simultaneously master the reconstruction effect to mitigate Ir dissolution,realizing the improved OER activity and stability in alkaline and acidic environments.As a result,Ir_(lat)@Co_(3)O_(4)with Ir loading of 3.67 wt%requires 294±4 mV/285±3 mV and 326±2 mV to deliver 10 mA cm^(-2)in alkaline(0.1 M KOH/1.0 M KOH)and acidic(0.5 M H_(2)SO_(4))solution,respectively,with good stability.
基金supported by funding from Bavarian Center for Battery Technology(Baybatt,Hightech Agenda Bayern)and Bayerisch-Tschechische Hochschulagentur(BTHA)(BTHA-AP-202245,BTHA-AP-2023-5,and BTHA-AP-2023-12)supported by the University of Bayreuth-Deakin University Joint Ph.D.Program+1 种基金supported by the Regional Innovation Strategy(RIS)through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(MOE)(2021RIS-003)supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(No.RS2023-00213749)
文摘A suitable interface between the electrode and electrolyte is crucial in achieving highly stable electrochemical performance for Li-ion batteries,as facile ionic transport is required.Intriguing research and development have recently been conducted to form a stable interface between the electrode and electrolyte.Therefore,it is essential to investigate emerging knowledge and contextualize it.The nanoengineering of the electrode-electrolyte interface has been actively researched at the electrode/electrolyte and interphase levels.This review presents and summarizes some recent advances aimed at nanoengineering approaches to build a more stable electrode-electrolyte interface and assess the impact of each approach adopted.Furthermore,future perspectives on the feasibility and practicality of each approach will also be reviewed in detail.Finally,this review aids in projecting a more sustainable research pathway for a nanoengineered interphase design between electrode and electrolyte,which is pivotal for high-performance,thermally stable Li-ion batteries.
基金financially supported by the National Natural Science Foundation of China(No.52377026 and No.52301192)Taishan Scholars and Young Experts Program of Shandong Province(No.tsqn202103057)+4 种基金Postdoctoral Fellowship Program of CPSF under Grant Number(No.GZB20240327)Shandong Postdoctoral Science Foundation(No.SDCXZG-202400275)Qingdao Postdoctoral Application Research Project(No.QDBSH20240102023)China Postdoctoral Science Foundation(No.2024M751563)the Qingchuang Talents Induction Program of Shandong Higher Education Institution(Research and Innovation Team of Structural-Functional Polymer Composites).
文摘Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent.Multi-component interface engineering is considered an effective means to achieve high-efficiency EMW absorption.However,interface modulation engineering has not been fully discussed and has great potential in the field of EMW absorption.In this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal reduction.By utilizing the different properties of different substances,rich heterogeneous interfaces are constructed.This effectively promotes charge transfer and enhances interfacial polarization and conduction loss.The prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy resin.The minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 GHz.Moreover,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel surfaces.Therefore,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.
基金supported by the National Natural Science Foundation of China (Grant Nos.42125701 and 41977232)China Postdoctoral Science Foundation (Grant No.2021M702234).
文摘The requisite functions of a bentonite buffer in a deep geological repository depend on the sealing/healing of bentonite interfaces,with particular emphasis on the self-healing(automatic healing upon wetting)of assembled bentonite-bentonite interfaces.This study determined the shear resistance(including the peak shear strength and secant modulus)of densely compacted Gaomiaozi(GMZ)bentonite and its assembled interface after confined water saturation.The effect of bentonite dry density and saturation time on the shear resistance of saturated healed interfaces was elucidated,and the interfacial self-healing capacity was assessed.The results indicate that the shear resistance of the saturated healed interfaces increased with the bentonite dry density but had a non-monotonic correlation with the saturation time.For a given dry density of the bentonite,the saturated healed interface exhibits a lower peak shear strength than the saturated intact bentonite but a higher peak shear strength than the saturated separated interface.The saturated healed and separated interfaces have comparable shear moduli(secant moduli),which are lower than that of the saturated intact bentonite.The saturated healed interfaces display smooth shear failure planes,while the saturated assembled interfaces and intact bentonite exhibit comparable frictional angles.This indicates that interfacial self-healing plays a pivotal role in enhancing interfacial peak shear strength by facilitating microstructural bonding at the assembled interface.Finally,it can be stated that densely compacted GMZ bentonite has a robust interfacial self-healing capacity in terms of shear resistance.These findings contribute to the design of the bentonite buffer and facilitate the evaluation of its safe operation at specified disposal ages.
基金supported by the Natural Resources Development Special Fund Project of Jiangsu Province(No.JSZRHYKJ202009)the Taishan Scholar Funds(No.tsqn 201812022)+2 种基金the Fundamental Research Funds for the Central Universities(No.202072001)the Guangxi Key Laboratory of Marine Disaster in the Beibu Gulf,Beibu Gulf University(No.2021KF03)the National Natural Science Foundation of China(No.42176020).
文摘An integral quality control(QC)procedure that integrates various QC methods and considers the design indexes and operational status of the instruments for the observations of drifting air-sea interface buoy was developed in the order of basic in-spection followed by targeted QC.The innovative method of combining a moving Hampel filter and local anomaly detection com-plies with statistical laws and physical processes,which guarantees the QC performance of meteorological variables.Two sets of observation data were used to verify the applicability and effectiveness of the QC procedure,and the effect was evaluated using the observations of the Kuroshio Extension Observatory buoy as the reference.The results showed that the outliers in the time series can be correctly identified and processed,and the quality of data improved significantly.The linear correlation between the quality-controlled observations and the reference increased,and the difference decreased.The correlation coefficient of wind speed before and after QC increased from 0.77 to 0.82,and the maximum absolute error decreased by approximately 2.8ms^(-1).In addition,air pressure and relative humidity were optimized by 10^(-3)–10^(-2) orders of magnitude.For the sea surface temperature,the weight of coefficients of the continuity test algorithm was optimized based on the sea area of data acquisition,which effectively expanded the applicability of the algorithm.
基金supported by the National Natural Science Foundation of China (Nos.U20B6004,22072179,and 22276202)the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDA23010200)+1 种基金the Special project of eco-environmental technology for peak carbon dioxide emissions and carbon neutrality (No.RCEES-TDZ2021-2)the Youth Innovation Promotion Association of the Chinese Academy of Sciences (No.2019045)。
文摘TiO_(2)-supported V_(2)O_(5)catalysts are commonly used in NO_(x)reduction with ammonia due to their robust catalytic performance.Over these catalysts,it is generally considered that the active species are mainly derived from the vanadia species rather than the intrinsic structure of V-O-Ti entities,namely the interface sites.To reveal the role of V-O-Ti entities in NH_(3)-SCR,herein,we prepared TiO_(2)/V_(2)O_(5)catalysts and demonstrated that V-O-Ti entities were more active for NO_(x)reduction under wet conditions than the V sites(V=O)working alone.On the V-O-Ti entities,kinetic measurements and first principles calculations revealed that NH_(3)activation exhibited a much lower energy barrier than that on V=O sites.Under wet conditions,the V-O-Ti interface significantly inhibited the transformation of V=O to V-OH sites thus benefiting NH_(3)activation.Under wet conditions,meanwhile,the migration of NH_(4)^(+)from Ti site neighboring the V-O-Ti interface to Ti site of the V-O-Ti interface was exothermic;thus,V-O-Ti entities together with neighboring Ti sites could serve as channels linking NH_(3)pool and active centers for activation of NH_(4)^(+).This finding reveals that the V-O-Ti interface sites on V-based catalysts play a crucial role in NO_(x)removal under realistic conditions,providing a new perspective on NH_(3)-SCR mechanism.
基金Funded by the Research Funds of China University of Mining and Technology(No.102523215)。
文摘The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics simulation.The diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are included.The simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6%and 70.5%respectively after 110#asphalt and 130#asphalt are pre-wetted.The concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more uniform.According to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5%after pre-wetting.According to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance.
文摘Developing efficient,stable,and low-cost electrocatalysts toward alkaline hydrogen evolution reactions(HER)in water electrolysis driven by renewable energy sources has always been discussed over the past decade.To reduce energy consumption and improve energy utilization efficiency,highly active electrocatalytic electrodes are essential for lowering the energy barrier of the HER.Catalysts featuring multiple interfaces have attracted significant research interest recently due to their enhanced physicochemical properties.Reasonable interface modulation can optimize intermediate active species’adsorption energy,improve catalytic active sites’selectivity,and enhance intrinsic catalytic activity.Here,we provided an overview of the latest advancement in interface engineering for efficient HER catalysts.We begin with a brief introduction to the fundamental concepts and mechanisms of alkaline HER.Then,we analyze and discuss current regulating principles in interface engineering for HER catalysts,focusing particularly on optimizing electron structures and modulating microenvironment reactions.Finally,the challenges and further prospects of interface catalysts for future applications are discussed.
基金the National Key R&D Plan of the Ministry of Science and Technology of China(2022YFE0122400)National Natural Science Foundation of China(52002238,22102207)+1 种基金Science and Technology Commission of Shanghai Municipality(22ZR1423800,21ZR1465200,23ZR1423600)Shanghai Municipal Education Commission and the NSRF via the Program Management Unit for Human Resources&Institutional Development,Research and Innovation(B49G680115).
文摘Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy density.Nevertheless,the poor rate performance and limited cycling life remain unresolved through conventional approaches that involve carbon composites or nanostructures,primarily due to the un-controllable effects arising from the substantial formation of a solid electrolyte interphase(SEI)during the cycling.Here,an ultra-thin and homogeneous Ti doping alumina oxide catalytic interface is meticulously applied on the porous Si through a synergistic etching and hydrolysis process.This defect-rich oxide interface promotes a selective adsorption of fluoroethylene carbonate,leading to a catalytic reaction that can be aptly described as“molecular concentration-in situ conversion”.The resultant inorganic-rich SEI layer is electrochemical stable and favors ion-transport,particularly at high-rate cycling and high temperature.The robustly shielded porous Si,with a large surface area,achieves a high initial Coulombic efficiency of 84.7%and delivers exceptional high-rate performance at 25 A g^(−1)(692 mAh g^(−1))and a high Coulombic efficiency of 99.7%over 1000 cycles.The robust SEI constructed through a precious catalytic layer promises significant advantages for the fast development of silicon-based anode in fast-charging batteries.
基金supported by the Key Science and Technol-ogy Program of Henan Province(No.232102241020)the Ph.D.Research Startup Foundation of Henan University of Science and Technology(No.400613480015)+1 种基金the Postdoctoral Research Startup Foundation of Henan University of Science and Technology(No.400613554001)the Natural Science Foundation of Henan Province(242300420021).
文摘The poor reversibility and stability of Zn anodes greatly restrict the practical application of aqueous Zn-ion batteries(AZIBs),resulting from the uncontrollable dendrite growth and H_(2)O-induced side reactions during cycling.Electrolyte additive modification is considered one of the most effective and simplest methods for solving the aforementioned problems.Herein,the pyridine derivatives(PD)including 2,4-dihydroxypyridine(2,4-DHP),2,3-dihydroxypyridine(2,3-DHP),and 2-hydroxypyrdine(2-DHP),were em-ployed as novel electrolyte additives in ZnSO_(4)electrolyte.Both density functional theory calculation and experimental findings demonstrated that the incorporation of PD additives into the electrolyte effectively modulates the solvation structure of hydrated Zn ions,thereby suppressing side reactions in AZIBs.Ad-ditionally,the adsorption of PD molecules on the zinc anode surface contributed to uniform Zn deposi-tion and dendrite growth inhibition.Consequently,a 2,4-DHP-modified Zn/Zn symmetrical cell achieved an extremely long cyclic stability up to 5650 h at 1 mA cm^(-2).Furthermore,the Zn/NH_(4)V_(4)O_(10)full cell with 2,4-DHP-containing electrolyte exhibited an outstanding initial capacity of 204 mAh g^(-1),with a no-table capacity retention of 79%after 1000 cycles at 5 A g^(-1).Hence,this study expands the selection of electrolyte additives for AZIBs,and the working mechanism of PD additives provides new insights for electrolyte modification enabling highly reversible zinc anode.
