Porous organic frameworks(POFs)have become a highly sought-after research domain that offers a promising avenue for developing cutting-edge nanostructured materials,both in their pristine state and when subjected to v...Porous organic frameworks(POFs)have become a highly sought-after research domain that offers a promising avenue for developing cutting-edge nanostructured materials,both in their pristine state and when subjected to various chemical and structural modifications.Metal–organic frameworks,covalent organic frameworks,and hydrogen-bonded organic frameworks are examples of these emerging materials that have gained significant attention due to their unique properties,such as high crystallinity,intrinsic porosity,unique structural regularity,diverse functionality,design flexibility,and outstanding stability.This review provides an overview of the state-of-the-art research on base-stable POFs,emphasizing the distinct pros and cons of reticular framework nanoparticles compared to other types of nanocluster materials.Thereafter,the review highlights the unique opportunity to produce multifunctional tailoring nanoparticles to meet specific application requirements.It is recommended that this potential for creating customized nanoparticles should be the driving force behind future synthesis efforts to tap the full potential of this multifaceted material category.展开更多
The leakage of organic phase change materials(OPCMs)at temperatures above their melting point severely limits their large-scale application.The introduction of porous supports has been identified as an efficient leaka...The leakage of organic phase change materials(OPCMs)at temperatures above their melting point severely limits their large-scale application.The introduction of porous supports has been identified as an efficient leakageproofing method.In this study,a novel carbonized Cu-coated melamine foam(MF)/reduced graphene oxide(rGO)framework(MF/rGO/Cu-C)is constructed as a support for fabricating stabilized multifunctional OPCMs.MF serves as the supporting material,while rGO and Cu act as functional reinforcements.As a thermal energy storage material,polyethylene glycol(PEG)is encapsulated into MF/rGO/Cu-C through a vacuum-assisted impregnation method to obtain PEG@MF/rGO/Cu-C composite with excellent comprehensive performance.PEG@MF/rGO/Cu-C exhibits high phase change enthalpies of 148.3 J g^(-1)(melting)and 143.9 J g^(-1)(crystallization),corresponding to a high energy storage capability of 92.7%.Simultaneously,MF/rGO/Cu-C endues the composite with an enhanced thermal conductivity of 0.4621Wm^(-1) K^(-1),which increases by 463%compared to that of PEG@MF.Furthermore,PEG@MF/rGO/Cu-C displays great light-to-thermal and electric-to-thermal conversion capabilities,thermal cycle stability,light-tothermal cycle stability,and shape stability,showing promising application prospects in different aspects.展开更多
The current electromagnetic environment brings a growing demand for efficient microwave absorption(MA)materials.Ti_(3)C_(2)T_(x)MXene,one of the 2D transition-metal carbides,is considered to be a promising MA material...The current electromagnetic environment brings a growing demand for efficient microwave absorption(MA)materials.Ti_(3)C_(2)T_(x)MXene,one of the 2D transition-metal carbides,is considered to be a promising MA material owing to its superior dielectric properties and structural processability.In order to further improve the MA performance and environmental adaptability of Ti_(3)C_(2)T_(x)MXene,Ti_(3)C_(2)T_(x)MXene-based MA materials enhanced by composition and structure design have been extensively studied and the regu-lation ideas for its MA properties can be outlined as component optimization and structure manipulation strategies based on the microwave absorption mechanism.Herein,we briefly introduced the microwave absorption mechanism and focused on the design strategies of Ti_(3)C_(2)T_(x)MXene-based MA materials based on recent advances.In addition,the prospects of Ti_(3)C_(2)T_(x)MXene-based MA materials were also discussed.展开更多
Persistent luminescence (PersL) materials,as environmentally friendly and energy-saving materials,have broad application prospects in many fields such as lighting,chemistry and even biomedicine.However,studies on the ...Persistent luminescence (PersL) materials,as environmentally friendly and energy-saving materials,have broad application prospects in many fields such as lighting,chemistry and even biomedicine.However,studies on the types,performances and mechanism of PersL materials are still insufficient,which significantly restricts their development and application.Under this consideration,we successfully synthesized a yellow PersL material CaSrGa_(4)O_(8)(CSG).The crystal structure was studied in detail through Rotation Electron Diffraction (RED) and Powder X-ray Diffraction (PXRD).What’s more,by co-doping Mn^(2+) and Yb^(3+),the afterglow brightness of CSG could be increased by nearly 20 times,and the afterglow duration could reach more than 6 h.It is worth mentioning that the samples also have excellent performances in mechanical luminescence (ML),photostimulated luminescence (PSL) and cathodoluminescence (CL),which was also investigated systematically.Finally,an anti-counterfeiting label was designed by the samples to reveal the potential of their application in anti-counterfeiting.The results showed that our research not only provided a new candidate PersL material for multifunctional applications,but also gave good help for studying the physical and chemical properties of CSG.展开更多
Phase change materials(PCMs) present promising potential for guaranteeing safety in thermal management systems.However,most reported PCMs have a single application in energy storage for thermal management systems,whic...Phase change materials(PCMs) present promising potential for guaranteeing safety in thermal management systems.However,most reported PCMs have a single application in energy storage for thermal management systems,which does not meet the growing demand for multi-functional materials.In this paper,the flexible material and hydrogen-bonding function are innovatively combined to design and prepare a novel multi-functional flexible phase change film(PPL).The 0.2PPL-2 film exhibits solid-solid phase change behavior with energy storage density of 131.8 J/g at the transition temperature of42.1℃,thermal cycling stability(500 cycles),wide-temperature range flexibility(0-60℃) and selfhealing property.Notably,the PPL film can be recycled up to 98.5% by intrinsic remodeling.Moreover,the PPL film can be tailored to the desired colors and configurations and can be cleverly assembled on several thermal management systems at ambient temperature through its flexibility combined with shape-memory properties.More interestingly,the transmittance of PPL will be altered when the ambient temperature changes(60℃),conveying a clear thermal signal.Finally,the thermal energy storage performance of the PPL film is successfully tested by human thermotherapy and electronic device temperature control experiments.The proposed functional integration strategy provides innovative ideas to design PCMs for multifunctionality,and makes significant contributions in green chemistry,highefficiency thermal management,and energy sustainability.展开更多
A multifunctional material with both electrorheological（ER） performance and luminescence property was synthesized by a simple coprecipitation. The tetrabutyl titanate, as well as the Tb（NO3）3·6H2O and sulphos...A multifunctional material with both electrorheological（ER） performance and luminescence property was synthesized by a simple coprecipitation. The tetrabutyl titanate, as well as the Tb（NO3）3·6H2O and sulphosalicylic acid（C7H6O6S·2H2O, SSA） were chosen as starting materials. The composition, ER performance and luminescence property of the material were studied. The results showed that a novel material（TiTbSSA） with both ER performance and luminescence property was obtained. The relative shear stress τr（τr=τE/τ0, τE and τ0 were the shear stresses of the suspension with and without an applied electric field） of the suspension（30 wt.%） of the material in silicone oil reached 32.7 at a shear rate of 12.5 s–1 and an electric field strength of 4 kV/mm（DC electric field）. The material containing the rare earth（RE=Tb） complex exhibited fine luminescence performance and higher ER activity. Therefore, it is a novel multifunction material which would have wide application prospect.展开更多
Presents the synthesis of Copolyimide containing triarylamine and NLO chromophore in backbone by azo coupling of 4 nitrobenzenediazonium tetrafloroborate to copoly(amic acid) in organic solvent and characterized by IR...Presents the synthesis of Copolyimide containing triarylamine and NLO chromophore in backbone by azo coupling of 4 nitrobenzenediazonium tetrafloroborate to copoly(amic acid) in organic solvent and characterized by IR and UV Vis spectra, which had high glass transition temperatrue and big second order nonlinear optical coefficient x (2) .展开更多
For the further improvement of the power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs),the buried interface between the perovskite and the electron transport layer is crucial.However,it is ch...For the further improvement of the power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs),the buried interface between the perovskite and the electron transport layer is crucial.However,it is challenging to effectively optimize this interface as it is buried beneath the perovskite film.Herein,we have designed and synthesized a series of multifunctional organic-inorganic(OI)complexes as buried interfacial material to promote electron extraction,as well as the crystal growth of the perovskite.The OI complex with BF4−group not only eliminates oxygen vacancies on the SnO_(2) surface but also balances energy level alignment between SnO_(2) and perovskite,providing a favorable environment for charge carrier extraction.Moreover,OI complex with amine(−NH_(2))functional group can regulate the crystallization of the perovskite film via interaction with PbI2,resulting in highly crystallized perovskite film with large grains and low defect density.Consequently,with rational molecular design,the PSCs with optimal OI complex buried interface layer which contains both BF4−and−NH_(2) functional groups yield a champion device efficiency of 23.69%.More importantly,the resulting unencapsulated device performs excellent ambient stability,maintaining over 90%of its initial efficiency after 2000 h storage,and excellent light stability of 91.5%remaining PCE in the maximum power point tracking measurement(under continuous 100 mW cm−2 light illumination in N2 atmosphere)after 500 h.展开更多
Heterointerfaces have been pivotal in unveiling extraordinary interfacial properties and enabling multifunctional material platforms.Despite extensive research on all-oxide interfaces,heterointerfaces between differen...Heterointerfaces have been pivotal in unveiling extraordinary interfacial properties and enabling multifunctional material platforms.Despite extensive research on all-oxide interfaces,heterointerfaces between different material classes,such as oxides and nitrides,remain underexplored.Here we present the fabrication of atomically sharp heterointerfaces between antiperovskite Ni_(3)InN and perovskite SrVO_(3).Leveraging layer-resolved scanning transmission electron microscopy and electron energy loss spectroscopy,we identified pronounced charge transfer across the well-ordered interface.First-principles calculations confirmed our experimental observations and further predicted an emergent magnetic moment within the Ni_(3)InN layer due to the charge transfer.These findings pave the way for novel electronic and spintronic applications by enabling tunable interfacial properties in nitride/oxide systems.展开更多
Recently,multifunctional materials have received widespread attention from researchers.Cellulose nanofibers(CNF)is one of biomass materials with abundant hydroxyl groups,which shows great potential in manufacturing mu...Recently,multifunctional materials have received widespread attention from researchers.Cellulose nanofibers(CNF)is one of biomass materials with abundant hydroxyl groups,which shows great potential in manufacturing multifunctional composite material.In this paper,a kind of polyaniline@CNF/polyvinyl alcohol-H_(2)SO_(4) multifunctional composite material(PANI@CNF/PVA-H_(2)SO_(4))was successfully designed by in-situ chemical polymerization of conductive polyaniline(PANI)onto CNF aerogel with high aspect ratio,and then coated with PVA-H_(2)SO_(4) gel.The composite material has a specific capacitance of 502.2 F/g at a scan rate of 5 mV/s as supercapacitor electrode.Furthermore,when the composite was assembled into a symmetrical supercapacitor,it can still provide an energy density of 11.49 W·h/kg at a high power density of 413.55 W/kg.Besides,the as-obtained PANI@CNF/PVA-H_(2)SO_(4) composite has an excellent electromagnetic shielding performance of 34.75 dB in X-band.In addition,due to the excellent flexibility of CNF and PVA,the PANI@CNF/PVA-H2SO4 composites can be further applied to stress sensors to detect pressure and human motion signals.展开更多
There exists a huge demand for multifunctional materials to keep pace with the development of the next generation of modern electronics featured with high integration,good reliability and multifunction.Herein,we prese...There exists a huge demand for multifunctional materials to keep pace with the development of the next generation of modern electronics featured with high integration,good reliability and multifunction.Herein,we present a novel Dy^(3+)doped KNN-based lead-free multifunctional fluorescent ferroelectric ceramics.展开更多
It is highly desirable but challenging to design multi-functional materials for energy storage and electromagnetic(EM)wave absorption.Herein,core–shell CaSnO_(3)@N-doped carbon(CSO@NCNF)coaxial nanocables with one-di...It is highly desirable but challenging to design multi-functional materials for energy storage and electromagnetic(EM)wave absorption.Herein,core–shell CaSnO_(3)@N-doped carbon(CSO@NCNF)coaxial nanocables with one-dimensional(1D)architecture were synthesized by employing the electrospinning method combined with in situ polymerization and heat treatment.In the resulting structure,the CaSnO_(3) nanofiber(CSONF)core with an average diameter of 52.5 nm is confined in the high electronic conductivity of the N-doped carbon sheaths with a thickness ranging from 27.3 to 67.2 nm.The lithium storage performance of the CSO@NCNF nanocable electrode is much higher than that of the CSONF electrode;this is owing to the(i)large number of void spaces and active sites generated by the structure of the 1D core–shell nanocables,(ii)fast transport network constructed by carbon sheaths prominently enhancing the transport of both electrons and lithium ions,and(iii)structural stability achieved through the buffering mechanism created by CaSnO_(3)@NCNF coaxial construction.However,its ingenious structural design,multiple heterogeneous interfaces and multi-component strategy give rise to a synergistic mechanism of impedance matching,conductive loss,polarization loss and multiple reflection/scattering.The coaxial nanocables display good microwave absorption(MA)properties,featuring a reflection loss(RL)value of−47.0 dB at 8.2 GHz and 2.5 mm as well as an effective absorption bandwidth(EAB)of 4.7 GHz at 1.4 mm.This unique structural design is believed to provide a reference for the preparation of multi-functional materials.展开更多
The integration of photochromism and photomagnetism is of great significance for developing photoresponsive multifunctional materials.Herein,we successfully synthesized four cyanido-bridged bimetallic frameworks formu...The integration of photochromism and photomagnetism is of great significance for developing photoresponsive multifunctional materials.Herein,we successfully synthesized four cyanido-bridged bimetallic frameworks formulated as(MV^(Ⅱ))0.5[M^(Ⅲ)M^(Ⅱ)(CN)_(6)]·(H_(2)O)n(i.e.,FeMn,FeZn,CrMn,and CrZn;MV^(Ⅱ)=1,1’-dimethyl-4,4’-bipyridine dication;M^(Ⅲ)=Fe^(Ⅲ),Cr^(Ⅲ);M^(Ⅱ)=Mn^(Ⅱ),Zn^(Ⅱ)),by incorporating diverse polycyanidometallates and viologen moieties into donor-acceptor(D-A)hybrid molecule-based materials.FeZn and CrZn both exhibit visible photoinduced electron transfer(PET)processes upon Xe lamp irradiation at room temperature.However,while CrZn undergoes reversible photochromism,FeZn exhibits irreversible photochromism,which originates not only from photoinduced radicals but also from Fe reduction.Interestingly,the change in the absorption band of FeZn spans the UV-visible-near infrared(UV-Vis-NIR)region(ca.200-2600 nm)after irradiation.Although FeMn and CrMn do not exhibit photoinduced colour changes,they behave as twodimensional(2D)and three-dimensional(3D)ferrimagnets,respectively,with CrMn exhibiting long-range ordering below ca.80 K.FeZn exhibits photomagnetic behavior upon irradiation due to magnetic interactions between photoinduced viologen radicals and low-spin(LS)Fe^(Ⅲ)ions.Additionally,we investigate the remarkable influence of metal ions on photochromism and(photo)magnetism through detailed crystal structure analysis.This work provides a novel approach for synthesizing photo-responsive multifunctional materials using cyanidometallic viologen hybrid compounds.展开更多
Infrared nonlinear optical(NLO)materials are crucial to the development of laser technology.However,finding ways to effectively synthesize them is still a big challenge.Herein,aided by a stable open framework,four IR ...Infrared nonlinear optical(NLO)materials are crucial to the development of laser technology.However,finding ways to effectively synthesize them is still a big challenge.Herein,aided by a stable open framework,four IR NLO materials,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb),have been effectively synthesized in a high-temperature vacuum sealing system.They all crystallize in a non-centrosymmetric(NCS)space group,P6¯,and their structures feature a three-dimensional open framework composed of Mn-S single and double chains and Ga-S single and double chains,in which these one-dimensional chains increase the structural flexibility and adjustability to accommodate varied cations with different ionic radii.Remarkably,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)exhibit not only comprehensive NLO performances including appropriate NLO responses and band gaps and a wide transmission range but also para-magnetism in magnetic properties,indicating that MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)are potential IR multifunctional materials.This work suggests that a stable open framework can be used to construct varied structures,which brings a new platform for effectively designing multifunctional materials.展开更多
Metal–organic frameworks(MOFs)represent a unique class of porous materialswith tremendous potential for diverse applications.A key factor contributing totheir versatility is their ability to precisely introduce funct...Metal–organic frameworks(MOFs)represent a unique class of porous materialswith tremendous potential for diverse applications.A key factor contributing totheir versatility is their ability to precisely introduce functional groups at specificpositions within pores and crystals.This review explores two prominent strategiesfor achieving the positional functionalization of MOFs:post-synthetic ligand exchange(PSE)and MOF-on-MOF.In PSE,the existing ligands within solid-stateMOFs can be selectively replaced by the desired functional groups in solutionthrough ligand dynamics.This invasive functionalization provides a flexibleapproach to fine-tuning the surface of the MOFs with the target functionality.Conversely,MOF-on-MOF strategies are additive methodologies involving thecontrolled growth of one MOF layer onto another.The functionality of the core andshell(or surface)can be independently controlled.This review critically examinesthe examples,strengths,limitations,and applications of these strategies,emphasizingtheir significance in advancing the field of MOF functionalization andpaving the way for tailored multifunctional materials with precise and specificproperties.展开更多
Multifunctional stimuli-responsive photochromic materials have significantly expanded their application fields,including molecular switching,information storage and encryption,detection and sensing,etc.1,4,5,8-Naphtha...Multifunctional stimuli-responsive photochromic materials have significantly expanded their application fields,including molecular switching,information storage and encryption,detection and sensing,etc.1,4,5,8-Naphthalenediimides(NDIs)have been widely used for the construction of photochromic materials because of their excellent modification potential and high redox activity.As single organic NDI materials exhibit poor fatigue resistance and relatively simple functions,increasing interest in this field focuses on constructing multifunctional crystalline hybrid photochromic materials and exploring applications based on the electron-deficient features of NDIs.Nevertheless,the development of multifunctional naphthalenediimide-based crystalline hybrid photochromic materials(NCHPMs)remains a significant challenge.This paper summarizes structure design strategies for NCHPMs with different NDI ligands,the photochromic mechanism,applications,and future prospects.This article will provide a valuable reference for researchers studying NCHPMs.展开更多
1.Introduction The development of human society has caused global energy demand and consumption to grow rapidly.The extensive consump-tion of fossil fuels(e.g.,oil and coal)has dramatically increased environmental pol...1.Introduction The development of human society has caused global energy demand and consumption to grow rapidly.The extensive consump-tion of fossil fuels(e.g.,oil and coal)has dramatically increased environmental pollution and greenhouse gas emissions,seriously threatening the ecological system and human health.Developing green and sustainable technologies should be investigated and pur-sued to benefit human society.In addition,designing efficient and multifunctional materials is vital in new energy and environmental development.The metal-organic framework(MOF)is a kind of functional and highly porous nanomaterial composed of metal-based nodes and organic ligands,providing reactive sites for energy and environmental fields.展开更多
In the Research Article titled“Multifunctional GO Hybrid Hydrogel Scaffolds for Wound Healing”[1],the authors have identified an error in Figure 5.Due to an inadvertent error during the assembly of the image,panel D...In the Research Article titled“Multifunctional GO Hybrid Hydrogel Scaffolds for Wound Healing”[1],the authors have identified an error in Figure 5.Due to an inadvertent error during the assembly of the image,panel D was incorrect.This error does not affect the results or conclusions of the paper but the authors apologize for any inconvenience this may have caused.展开更多
The sluggish redox reaction kinetics of lithium polysulfides(LiPSs)are considered the main obstacle to the commercial application of lithium-sulfur(Li-S)batteries.To accelerate the conversion by catalysis and inhibit ...The sluggish redox reaction kinetics of lithium polysulfides(LiPSs)are considered the main obstacle to the commercial application of lithium-sulfur(Li-S)batteries.To accelerate the conversion by catalysis and inhibit the shuttling of soluble LiPSs in Li-S batteries,a solution is proposed in this study.The solution involves fabrication of N,S co-doped carbon coated In_(2)O_(3)/In_(2)S_(3)heterostructure(In_(2)O_(3)-In_(2)S_(3)@NSC)as a multifunctional host material for the cathode.The In_(2)O_(3)-In_(2)S_(3)@NSC composite can reduce the Gibbs free energy for the conversion reactions of LiPSs,which results in superior performance.The synergy between different components in In_(2)O_(3)-In_(2)S_(3)@NSC and the unique 3D structure facilitate ion and electron transport in Li-S batteries.The In_(2)O_(3)-In_(2)S_(3)@NSC/Li 2 S 6 cathode exhibits excellent rate capacity,with a capacity of 599 mAh g−1 at 5.5 C,and good cycle stability,with a capacity of 436 mAh g^(−1)after 1000 cycles at 1 C.Overall,this study proposes a promising solution to improve the energy storage properties of Li-S batteries,which could potentially facilitate the commercialization of Li-S batteries.展开更多
Controlling phase composition and interfacial structures in electromagnetic waves(EMWs)absorbing composites is a promising approach to enhance the absorption efficiency and integrate multifunctional properties.Here,we...Controlling phase composition and interfacial structures in electromagnetic waves(EMWs)absorbing composites is a promising approach to enhance the absorption efficiency and integrate multifunctional properties.Here,we report the fabrication of iron-based nanostructured heterojunctions on reduced graphene oxide(rGO)via freeze-drying and controlled thermal treatment,enabling precise modulation of iron oxide phases.Among the obtained composites,the Fe_(3)O_(4)/Fe@rGO hybrid exhibited the strongest EMWs absorption.This enhancement originates from multiple loss mechanisms at the Fe_(3)O_(4)/Fe heterointerfaces,yielding a minimum reflection loss of−66.4 dB at 2.7 mm and an effective absorption bandwidth(EAB)of 7.16 GHz.Furthermore,a metal surface designed via full-wave simulations broadens the EAB to 15.3 GHz through optimized impedance and multi-resonance.The flexible Fe_(3)O_(4)/Fe@rGO film demonstrated high-performance infrared stealth,hydrophobicity,and efficient electromagnetic interference shielding.Density functional theory calculations revealed pronounced charge transfer at Fe_(3)O_(4)/Fe interfaces.Radar cross-section simulations further confirmed the material’s potential to substantially reduce detectability.This work presents a robust design strategy for next-generation electromagnetic protection materials with tunable composition,strong EMWs absorption,and integrated multifunctionality.展开更多
基金supported by the Fundamental-Core National Project of the National Research Foundation(NRF)funded by the Ministry of Science and ICT,Republic of Korea(2022R1F1A1072739).
文摘Porous organic frameworks(POFs)have become a highly sought-after research domain that offers a promising avenue for developing cutting-edge nanostructured materials,both in their pristine state and when subjected to various chemical and structural modifications.Metal–organic frameworks,covalent organic frameworks,and hydrogen-bonded organic frameworks are examples of these emerging materials that have gained significant attention due to their unique properties,such as high crystallinity,intrinsic porosity,unique structural regularity,diverse functionality,design flexibility,and outstanding stability.This review provides an overview of the state-of-the-art research on base-stable POFs,emphasizing the distinct pros and cons of reticular framework nanoparticles compared to other types of nanocluster materials.Thereafter,the review highlights the unique opportunity to produce multifunctional tailoring nanoparticles to meet specific application requirements.It is recommended that this potential for creating customized nanoparticles should be the driving force behind future synthesis efforts to tap the full potential of this multifaceted material category.
基金National Natural Science Foundation of China,Grant/Award Numbers:51861005,52071092,U20A20237Guangxi Natural Science Foundation,Grant/Award Numbers:2019GXNSFDA245023,2019GXNSFGA245005,2020GXNSFGA297004,2021GXNSFFA196002Guangxi Bagui Scholar Foundation。
文摘The leakage of organic phase change materials(OPCMs)at temperatures above their melting point severely limits their large-scale application.The introduction of porous supports has been identified as an efficient leakageproofing method.In this study,a novel carbonized Cu-coated melamine foam(MF)/reduced graphene oxide(rGO)framework(MF/rGO/Cu-C)is constructed as a support for fabricating stabilized multifunctional OPCMs.MF serves as the supporting material,while rGO and Cu act as functional reinforcements.As a thermal energy storage material,polyethylene glycol(PEG)is encapsulated into MF/rGO/Cu-C through a vacuum-assisted impregnation method to obtain PEG@MF/rGO/Cu-C composite with excellent comprehensive performance.PEG@MF/rGO/Cu-C exhibits high phase change enthalpies of 148.3 J g^(-1)(melting)and 143.9 J g^(-1)(crystallization),corresponding to a high energy storage capability of 92.7%.Simultaneously,MF/rGO/Cu-C endues the composite with an enhanced thermal conductivity of 0.4621Wm^(-1) K^(-1),which increases by 463%compared to that of PEG@MF.Furthermore,PEG@MF/rGO/Cu-C displays great light-to-thermal and electric-to-thermal conversion capabilities,thermal cycle stability,light-tothermal cycle stability,and shape stability,showing promising application prospects in different aspects.
基金financially supported by the Natural Science Foundation of Shandong Province(No.ZR2019YQ24)the Taishan Scholars and Young Experts Program of Shandong Province(No.tsqn202103057)the Qingchuang Talents Induction Program of Shandong Higher Education Institution(Research and Inno-vation Team of Structural-Functional Polymer Composites),and the Special Financial of Shandong Province(Structural Design of High-efficiency Electromagnetic Wave-absorbing Composite Mate-rials and Construction of Shandong Provincial Talent Teams(No.37000022P990304116449)).
文摘The current electromagnetic environment brings a growing demand for efficient microwave absorption(MA)materials.Ti_(3)C_(2)T_(x)MXene,one of the 2D transition-metal carbides,is considered to be a promising MA material owing to its superior dielectric properties and structural processability.In order to further improve the MA performance and environmental adaptability of Ti_(3)C_(2)T_(x)MXene,Ti_(3)C_(2)T_(x)MXene-based MA materials enhanced by composition and structure design have been extensively studied and the regu-lation ideas for its MA properties can be outlined as component optimization and structure manipulation strategies based on the microwave absorption mechanism.Herein,we briefly introduced the microwave absorption mechanism and focused on the design strategies of Ti_(3)C_(2)T_(x)MXene-based MA materials based on recent advances.In addition,the prospects of Ti_(3)C_(2)T_(x)MXene-based MA materials were also discussed.
基金supported by the Department of Industry and Information Technology of Gansu Province and Baotou Rare Earth Research Institute。
文摘Persistent luminescence (PersL) materials,as environmentally friendly and energy-saving materials,have broad application prospects in many fields such as lighting,chemistry and even biomedicine.However,studies on the types,performances and mechanism of PersL materials are still insufficient,which significantly restricts their development and application.Under this consideration,we successfully synthesized a yellow PersL material CaSrGa_(4)O_(8)(CSG).The crystal structure was studied in detail through Rotation Electron Diffraction (RED) and Powder X-ray Diffraction (PXRD).What’s more,by co-doping Mn^(2+) and Yb^(3+),the afterglow brightness of CSG could be increased by nearly 20 times,and the afterglow duration could reach more than 6 h.It is worth mentioning that the samples also have excellent performances in mechanical luminescence (ML),photostimulated luminescence (PSL) and cathodoluminescence (CL),which was also investigated systematically.Finally,an anti-counterfeiting label was designed by the samples to reveal the potential of their application in anti-counterfeiting.The results showed that our research not only provided a new candidate PersL material for multifunctional applications,but also gave good help for studying the physical and chemical properties of CSG.
基金supported by the Project of Shanghai Science and Technology Commission (Grant No. 19DZ1203102)National Key Research and Development Project (2018YFD0401300)Shanghai Municipal Science and Technology Project (16040501600)。
文摘Phase change materials(PCMs) present promising potential for guaranteeing safety in thermal management systems.However,most reported PCMs have a single application in energy storage for thermal management systems,which does not meet the growing demand for multi-functional materials.In this paper,the flexible material and hydrogen-bonding function are innovatively combined to design and prepare a novel multi-functional flexible phase change film(PPL).The 0.2PPL-2 film exhibits solid-solid phase change behavior with energy storage density of 131.8 J/g at the transition temperature of42.1℃,thermal cycling stability(500 cycles),wide-temperature range flexibility(0-60℃) and selfhealing property.Notably,the PPL film can be recycled up to 98.5% by intrinsic remodeling.Moreover,the PPL film can be tailored to the desired colors and configurations and can be cleverly assembled on several thermal management systems at ambient temperature through its flexibility combined with shape-memory properties.More interestingly,the transmittance of PPL will be altered when the ambient temperature changes(60℃),conveying a clear thermal signal.Finally,the thermal energy storage performance of the PPL film is successfully tested by human thermotherapy and electronic device temperature control experiments.The proposed functional integration strategy provides innovative ideas to design PCMs for multifunctionality,and makes significant contributions in green chemistry,highefficiency thermal management,and energy sustainability.
基金Project supported by National Natural Science Foundation of China(10704041,90922033,21071008)the National Basic Research Program of China(2013CB933401,2010CB934601)
文摘A multifunctional material with both electrorheological（ER） performance and luminescence property was synthesized by a simple coprecipitation. The tetrabutyl titanate, as well as the Tb（NO3）3·6H2O and sulphosalicylic acid（C7H6O6S·2H2O, SSA） were chosen as starting materials. The composition, ER performance and luminescence property of the material were studied. The results showed that a novel material（TiTbSSA） with both ER performance and luminescence property was obtained. The relative shear stress τr（τr=τE/τ0, τE and τ0 were the shear stresses of the suspension with and without an applied electric field） of the suspension（30 wt.%） of the material in silicone oil reached 32.7 at a shear rate of 12.5 s–1 and an electric field strength of 4 kV/mm（DC electric field）. The material containing the rare earth（RE=Tb） complex exhibited fine luminescence performance and higher ER activity. Therefore, it is a novel multifunction material which would have wide application prospect.
文摘Presents the synthesis of Copolyimide containing triarylamine and NLO chromophore in backbone by azo coupling of 4 nitrobenzenediazonium tetrafloroborate to copoly(amic acid) in organic solvent and characterized by IR and UV Vis spectra, which had high glass transition temperatrue and big second order nonlinear optical coefficient x (2) .
基金The authors acknowledge the financial support from the Natural Science Foundation of China(Nos.21931002 and 22101123)the National Key Research and Development Program of China(2018YFB0704100)+4 种基金the Shenzhen Science and Technology Innovation Committee(no.JCYJ20200109140812302)the Leading talents of Guangdong province program(2016LJ06N507)the Guangdong Provincial Key Laboratory of Energy Materials for Electric Power(no.2018B030322001)the Guangdong Provincial Key Laboratory of Catalysis(no.2020B121201002)Outstanding Talents Training Fund in Shenzhen.
文摘For the further improvement of the power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs),the buried interface between the perovskite and the electron transport layer is crucial.However,it is challenging to effectively optimize this interface as it is buried beneath the perovskite film.Herein,we have designed and synthesized a series of multifunctional organic-inorganic(OI)complexes as buried interfacial material to promote electron extraction,as well as the crystal growth of the perovskite.The OI complex with BF4−group not only eliminates oxygen vacancies on the SnO_(2) surface but also balances energy level alignment between SnO_(2) and perovskite,providing a favorable environment for charge carrier extraction.Moreover,OI complex with amine(−NH_(2))functional group can regulate the crystallization of the perovskite film via interaction with PbI2,resulting in highly crystallized perovskite film with large grains and low defect density.Consequently,with rational molecular design,the PSCs with optimal OI complex buried interface layer which contains both BF4−and−NH_(2) functional groups yield a champion device efficiency of 23.69%.More importantly,the resulting unencapsulated device performs excellent ambient stability,maintaining over 90%of its initial efficiency after 2000 h storage,and excellent light stability of 91.5%remaining PCE in the maximum power point tracking measurement(under continuous 100 mW cm−2 light illumination in N2 atmosphere)after 500 h.
基金supported by the Beijing Natural Science Foundation(Grant No.JQ24002)the National Key Basic Research Program of China(Grant No.2020YFA0309100)+3 种基金the National Natural Science Foundation of China(Grant Nos.U22A20263,52250308,12304158,12325401,12274069,12404102,and 12474096)the Chinese Academy of Sciences(CAS)Project for Young Scientists in Basic Research(Grant No.YSBR-084)the CAS Youth Interdisciplinary Team,the Guangdong Basic and Applied Basic Research Foundation(Grant No.2022B1515120014)the Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology,and the International Young Scientist Fellowship of Institute of Physics,CAS.
文摘Heterointerfaces have been pivotal in unveiling extraordinary interfacial properties and enabling multifunctional material platforms.Despite extensive research on all-oxide interfaces,heterointerfaces between different material classes,such as oxides and nitrides,remain underexplored.Here we present the fabrication of atomically sharp heterointerfaces between antiperovskite Ni_(3)InN and perovskite SrVO_(3).Leveraging layer-resolved scanning transmission electron microscopy and electron energy loss spectroscopy,we identified pronounced charge transfer across the well-ordered interface.First-principles calculations confirmed our experimental observations and further predicted an emergent magnetic moment within the Ni_(3)InN layer due to the charge transfer.These findings pave the way for novel electronic and spintronic applications by enabling tunable interfacial properties in nitride/oxide systems.
基金supported by the fund of National Natural Science Foundation of China(22078184,22378249 and 22178208)Key R&D Plan of Shaanxi Province(2024GX-YBXM-335)+1 种基金China Postdoctoral Science Foundation(2019M653853XB)Natural science advance research foundation of Shaanxi University of Science and Technology(2018QNBJ-03).
文摘Recently,multifunctional materials have received widespread attention from researchers.Cellulose nanofibers(CNF)is one of biomass materials with abundant hydroxyl groups,which shows great potential in manufacturing multifunctional composite material.In this paper,a kind of polyaniline@CNF/polyvinyl alcohol-H_(2)SO_(4) multifunctional composite material(PANI@CNF/PVA-H_(2)SO_(4))was successfully designed by in-situ chemical polymerization of conductive polyaniline(PANI)onto CNF aerogel with high aspect ratio,and then coated with PVA-H_(2)SO_(4) gel.The composite material has a specific capacitance of 502.2 F/g at a scan rate of 5 mV/s as supercapacitor electrode.Furthermore,when the composite was assembled into a symmetrical supercapacitor,it can still provide an energy density of 11.49 W·h/kg at a high power density of 413.55 W/kg.Besides,the as-obtained PANI@CNF/PVA-H_(2)SO_(4) composite has an excellent electromagnetic shielding performance of 34.75 dB in X-band.In addition,due to the excellent flexibility of CNF and PVA,the PANI@CNF/PVA-H2SO4 composites can be further applied to stress sensors to detect pressure and human motion signals.
基金supported by the National Natural Science Foundation of China(No.52002051,62074025)the Fundamental Research Funds for the Central Universities,SCUT(No.ZYGX2020J009)+1 种基金the Applied Basic Research Program of Sichuan Province(2021JDGD0026,2021YJ0408)Medical Engineering Innovations Program of UESTC(No.ZYGX2021YGCX012).
文摘There exists a huge demand for multifunctional materials to keep pace with the development of the next generation of modern electronics featured with high integration,good reliability and multifunction.Herein,we present a novel Dy^(3+)doped KNN-based lead-free multifunctional fluorescent ferroelectric ceramics.
基金supported by the Natural Science Foundation of Fujian Province of China(2020J01393)the Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX24-4101).
文摘It is highly desirable but challenging to design multi-functional materials for energy storage and electromagnetic(EM)wave absorption.Herein,core–shell CaSnO_(3)@N-doped carbon(CSO@NCNF)coaxial nanocables with one-dimensional(1D)architecture were synthesized by employing the electrospinning method combined with in situ polymerization and heat treatment.In the resulting structure,the CaSnO_(3) nanofiber(CSONF)core with an average diameter of 52.5 nm is confined in the high electronic conductivity of the N-doped carbon sheaths with a thickness ranging from 27.3 to 67.2 nm.The lithium storage performance of the CSO@NCNF nanocable electrode is much higher than that of the CSONF electrode;this is owing to the(i)large number of void spaces and active sites generated by the structure of the 1D core–shell nanocables,(ii)fast transport network constructed by carbon sheaths prominently enhancing the transport of both electrons and lithium ions,and(iii)structural stability achieved through the buffering mechanism created by CaSnO_(3)@NCNF coaxial construction.However,its ingenious structural design,multiple heterogeneous interfaces and multi-component strategy give rise to a synergistic mechanism of impedance matching,conductive loss,polarization loss and multiple reflection/scattering.The coaxial nanocables display good microwave absorption(MA)properties,featuring a reflection loss(RL)value of−47.0 dB at 8.2 GHz and 2.5 mm as well as an effective absorption bandwidth(EAB)of 4.7 GHz at 1.4 mm.This unique structural design is believed to provide a reference for the preparation of multi-functional materials.
基金supported by the National Natural Science Foundation of China(22131003,21971006 and 22101256).
文摘The integration of photochromism and photomagnetism is of great significance for developing photoresponsive multifunctional materials.Herein,we successfully synthesized four cyanido-bridged bimetallic frameworks formulated as(MV^(Ⅱ))0.5[M^(Ⅲ)M^(Ⅱ)(CN)_(6)]·(H_(2)O)n(i.e.,FeMn,FeZn,CrMn,and CrZn;MV^(Ⅱ)=1,1’-dimethyl-4,4’-bipyridine dication;M^(Ⅲ)=Fe^(Ⅲ),Cr^(Ⅲ);M^(Ⅱ)=Mn^(Ⅱ),Zn^(Ⅱ)),by incorporating diverse polycyanidometallates and viologen moieties into donor-acceptor(D-A)hybrid molecule-based materials.FeZn and CrZn both exhibit visible photoinduced electron transfer(PET)processes upon Xe lamp irradiation at room temperature.However,while CrZn undergoes reversible photochromism,FeZn exhibits irreversible photochromism,which originates not only from photoinduced radicals but also from Fe reduction.Interestingly,the change in the absorption band of FeZn spans the UV-visible-near infrared(UV-Vis-NIR)region(ca.200-2600 nm)after irradiation.Although FeMn and CrMn do not exhibit photoinduced colour changes,they behave as twodimensional(2D)and three-dimensional(3D)ferrimagnets,respectively,with CrMn exhibiting long-range ordering below ca.80 K.FeZn exhibits photomagnetic behavior upon irradiation due to magnetic interactions between photoinduced viologen radicals and low-spin(LS)Fe^(Ⅲ)ions.Additionally,we investigate the remarkable influence of metal ions on photochromism and(photo)magnetism through detailed crystal structure analysis.This work provides a novel approach for synthesizing photo-responsive multifunctional materials using cyanidometallic viologen hybrid compounds.
基金supported by the National Natural Science Foundation of China(grant no.52322202,52172006 and 22071179)the Natural Science Foundation of Tianjin(grant no.20JCJQJC00060 and 21JCJQJC00090).
文摘Infrared nonlinear optical(NLO)materials are crucial to the development of laser technology.However,finding ways to effectively synthesize them is still a big challenge.Herein,aided by a stable open framework,four IR NLO materials,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb),have been effectively synthesized in a high-temperature vacuum sealing system.They all crystallize in a non-centrosymmetric(NCS)space group,P6¯,and their structures feature a three-dimensional open framework composed of Mn-S single and double chains and Ga-S single and double chains,in which these one-dimensional chains increase the structural flexibility and adjustability to accommodate varied cations with different ionic radii.Remarkably,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)exhibit not only comprehensive NLO performances including appropriate NLO responses and band gaps and a wide transmission range but also para-magnetism in magnetic properties,indicating that MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)are potential IR multifunctional materials.This work suggests that a stable open framework can be used to construct varied structures,which brings a new platform for effectively designing multifunctional materials.
基金supported by the National Research Foundation of Korea(NRF)funded by the Ministry of Science and ICT(2022R1A2C1009706).
文摘Metal–organic frameworks(MOFs)represent a unique class of porous materialswith tremendous potential for diverse applications.A key factor contributing totheir versatility is their ability to precisely introduce functional groups at specificpositions within pores and crystals.This review explores two prominent strategiesfor achieving the positional functionalization of MOFs:post-synthetic ligand exchange(PSE)and MOF-on-MOF.In PSE,the existing ligands within solid-stateMOFs can be selectively replaced by the desired functional groups in solutionthrough ligand dynamics.This invasive functionalization provides a flexibleapproach to fine-tuning the surface of the MOFs with the target functionality.Conversely,MOF-on-MOF strategies are additive methodologies involving thecontrolled growth of one MOF layer onto another.The functionality of the core andshell(or surface)can be independently controlled.This review critically examinesthe examples,strengths,limitations,and applications of these strategies,emphasizingtheir significance in advancing the field of MOF functionalization andpaving the way for tailored multifunctional materials with precise and specificproperties.
基金supported by the Natural Science Foundation of Henan Province(242300420327 and NSFRF240702)Key Research Project of Higher Education Institutions of Henan Province of China(23A430025)+1 种基金Science and Technology Project of Henan Province(232102230004 and NSFRF230617)the Fundamental Research Funds for the Universities of Henan Province of China(NSFRF220404).
文摘Multifunctional stimuli-responsive photochromic materials have significantly expanded their application fields,including molecular switching,information storage and encryption,detection and sensing,etc.1,4,5,8-Naphthalenediimides(NDIs)have been widely used for the construction of photochromic materials because of their excellent modification potential and high redox activity.As single organic NDI materials exhibit poor fatigue resistance and relatively simple functions,increasing interest in this field focuses on constructing multifunctional crystalline hybrid photochromic materials and exploring applications based on the electron-deficient features of NDIs.Nevertheless,the development of multifunctional naphthalenediimide-based crystalline hybrid photochromic materials(NCHPMs)remains a significant challenge.This paper summarizes structure design strategies for NCHPMs with different NDI ligands,the photochromic mechanism,applications,and future prospects.This article will provide a valuable reference for researchers studying NCHPMs.
文摘1.Introduction The development of human society has caused global energy demand and consumption to grow rapidly.The extensive consump-tion of fossil fuels(e.g.,oil and coal)has dramatically increased environmental pollution and greenhouse gas emissions,seriously threatening the ecological system and human health.Developing green and sustainable technologies should be investigated and pur-sued to benefit human society.In addition,designing efficient and multifunctional materials is vital in new energy and environmental development.The metal-organic framework(MOF)is a kind of functional and highly porous nanomaterial composed of metal-based nodes and organic ligands,providing reactive sites for energy and environmental fields.
文摘In the Research Article titled“Multifunctional GO Hybrid Hydrogel Scaffolds for Wound Healing”[1],the authors have identified an error in Figure 5.Due to an inadvertent error during the assembly of the image,panel D was incorrect.This error does not affect the results or conclusions of the paper but the authors apologize for any inconvenience this may have caused.
基金supported by the National Natural Sci-ence Foundation of China(Nos.51776218 and 52106120)the Natural Science Foundation of Jiangsu Province(No.BK20180083).
文摘The sluggish redox reaction kinetics of lithium polysulfides(LiPSs)are considered the main obstacle to the commercial application of lithium-sulfur(Li-S)batteries.To accelerate the conversion by catalysis and inhibit the shuttling of soluble LiPSs in Li-S batteries,a solution is proposed in this study.The solution involves fabrication of N,S co-doped carbon coated In_(2)O_(3)/In_(2)S_(3)heterostructure(In_(2)O_(3)-In_(2)S_(3)@NSC)as a multifunctional host material for the cathode.The In_(2)O_(3)-In_(2)S_(3)@NSC composite can reduce the Gibbs free energy for the conversion reactions of LiPSs,which results in superior performance.The synergy between different components in In_(2)O_(3)-In_(2)S_(3)@NSC and the unique 3D structure facilitate ion and electron transport in Li-S batteries.The In_(2)O_(3)-In_(2)S_(3)@NSC/Li 2 S 6 cathode exhibits excellent rate capacity,with a capacity of 599 mAh g−1 at 5.5 C,and good cycle stability,with a capacity of 436 mAh g^(−1)after 1000 cycles at 1 C.Overall,this study proposes a promising solution to improve the energy storage properties of Li-S batteries,which could potentially facilitate the commercialization of Li-S batteries.
基金the Nanjing University of Science and Technology(Nos.AE899991/406 and AD411203)。
文摘Controlling phase composition and interfacial structures in electromagnetic waves(EMWs)absorbing composites is a promising approach to enhance the absorption efficiency and integrate multifunctional properties.Here,we report the fabrication of iron-based nanostructured heterojunctions on reduced graphene oxide(rGO)via freeze-drying and controlled thermal treatment,enabling precise modulation of iron oxide phases.Among the obtained composites,the Fe_(3)O_(4)/Fe@rGO hybrid exhibited the strongest EMWs absorption.This enhancement originates from multiple loss mechanisms at the Fe_(3)O_(4)/Fe heterointerfaces,yielding a minimum reflection loss of−66.4 dB at 2.7 mm and an effective absorption bandwidth(EAB)of 7.16 GHz.Furthermore,a metal surface designed via full-wave simulations broadens the EAB to 15.3 GHz through optimized impedance and multi-resonance.The flexible Fe_(3)O_(4)/Fe@rGO film demonstrated high-performance infrared stealth,hydrophobicity,and efficient electromagnetic interference shielding.Density functional theory calculations revealed pronounced charge transfer at Fe_(3)O_(4)/Fe interfaces.Radar cross-section simulations further confirmed the material’s potential to substantially reduce detectability.This work presents a robust design strategy for next-generation electromagnetic protection materials with tunable composition,strong EMWs absorption,and integrated multifunctionality.
