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
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
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
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
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
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
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
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
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
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
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
Multifunctional materials have attracted tremendous attention in intelligent and interactive devices.However,achieving multi-dimensional sensing capabilities with the same perovskite quantum dot(PQD)material is still ...Multifunctional materials have attracted tremendous attention in intelligent and interactive devices.However,achieving multi-dimensional sensing capabilities with the same perovskite quantum dot(PQD)material is still in its infancy,with some considering it currently challenging and even unattainable.Drawing inspiration from neurons,a novel multifunctional CsPbBr_(3)/PDMS nanosphere is devised to sense humidity,temperature,and pressure simultaneously with unique interactive responses.The carefully engineered polydimethylsiloxane(PDMS)shell enables the reversible activity of the core CsPbBr_(3),serving a dual role similar to dendrites in conveying and evaluating external stimuli with high sensitivity.Molecular dynamics analysis reveals that the PDMS shell with proper pore density enhances the conductivity in water and heat,imparting CsPbBrs with sensitive but reversible properties.By tailoring the crosslinking density of the PDMS shell,nanospheres can surprisingly show customized sensitivity and reversible responses to different level of stimuli,achieving over 95%accuracy in multi-dimensional and wide-range sensing.The regular pressure-sensitive property,discovered for the frst time,is attributed to the regular morphology of the nanosphere,the inherent low rigidity of the PDMS shell,and the uniform distribution of the CsPbBr core material in combination.This study breaks away from conventional design paradigms of perovskite core-shell materials by customizing the cross-linked density of the shell material.The reversible response mechanism of nanospheres with gradient shell density is deeply explored in response to environmental stimuli,which offers fresh insights into multi-dimensional sensing and interactive display applications.展开更多
Materials have driven human progress from the Stone Age to the Silicon Age,and a new age of multifunctional assembled materials is coming.Designing these materials with precisely tailored properties is essential to so...Materials have driven human progress from the Stone Age to the Silicon Age,and a new age of multifunctional assembled materials is coming.Designing these materials with precisely tailored properties is essential to solve problems that the current generation of materials cannot handle.展开更多
Two-dimensional(2D)organic-inorganic hybrid perovskites(OIHPs)have attracted phenomenal attention because of their superior optoelectronic performances.The combination of their structural tunability and material stabi...Two-dimensional(2D)organic-inorganic hybrid perovskites(OIHPs)have attracted phenomenal attention because of their superior optoelectronic performances.The combination of their structural tunability and material stability offers an unprecedented opportunity to engineer materials with unique functionalities.However,developing a rapid and effective design method for introducing luminescence into dielectric switch and realizing controllable regulation has been an enormous challenge.Thus far,materials with tunable optoelectronic multichannel response have not been successfully implemented.In this study,we successfully developed a facile and effective mechanochemical method for realizing the integration and regulation of luminescence and dielectric switch in 2D perovskites,which is unprecedented for the design of dielectric switching materials.The mild external mechanical stimuli enabled the formation of Mn ion-doped 2D hybrid perovskites(Cyclopropylammonium)2Pb1-xMnxBr4 with excellent dielectric switch and rapidly controllable luminescence of highly efficient blue light,white light,pink light,and orange light.This work will provide a new perspective on the rapid and effective design of multifunctional materials and can inspire the future development of low-cost and high-efficiency electronics.展开更多
Hydrogels,traditionally valued for their biocompatibility and soft-wet properties,are now being engineered as multifunctional advanced materials to address complex challenges in biomedicine,robotics,food engineering,e...Hydrogels,traditionally valued for their biocompatibility and soft-wet properties,are now being engineered as multifunctional advanced materials to address complex challenges in biomedicine,robotics,food engineering,energy,and environmental science.Recent advances have focused on improving their mechanical properties(e.g.,strength,elasticity,toughness,fatigue resistance,and autonomous repair),responsiveness(e.g.,responsive to pH,temperature,light,glucose,and enzymes),biocompatibility(e.g.,eco-friendly hydrogels derived from natural polymers),and diverse applications.展开更多
During the last decade,tissue engineering has shown a considerable promise in providing more viable alternatives to surgical procedures for harvested tissues,implants and prostheses.Due to the fast development on nano...During the last decade,tissue engineering has shown a considerable promise in providing more viable alternatives to surgical procedures for harvested tissues,implants and prostheses.Due to the fast development on nano-and biomaterial technologies,it is now possible for doctors to use patients’cells to repair orthopaedic defects such as focal articular cartilage lesions.In order to support the three-dimensional tissue formation,scaffolds made by biocompatible and bioresorbable polymers and composite materials,for providing temporary support of damaged body and cell structures,have been developed recently.Although ceramic and metallic materials have been widely accepted for the development of implants,their non-resorbability and necessity of second surgical operation(like for bone repair),which induce extra pain for the patients,limit their wide applications.The development of different types of biocomposites for biomedical engineering applications is described.These biocomposites include(i)basic biomaterials;(ii)natural fiber-reinforced biocomposites and(iii)nanoparticle-reinforced biocomposites.Their multifunctionality is discussed in terms of the control of mechanical properties,biodegradability and bioresorbability.展开更多
Stable organic luminescent radicals are a special class of compounds integrating optical,electrical,and magnetic properties.Luminescent radicals not only have potential applications in the field of the organic light-e...Stable organic luminescent radicals are a special class of compounds integrating optical,electrical,and magnetic properties.Luminescent radicals not only have potential applications in the field of the organic light-emitting diodes(OLEDs)but can also be applied in the fields of fluorescence sensing,bioimaging,and so forth.Nevertheless,due to the adverse effects of solvent polarity on the luminescent performance of radicals,no feasible approaches have been found in the literature toward fluorescent sensing.In this work,we report two luminescent radicals,2αPyID-TTM and 2δPyID-TTM,whose emissions show high efficiency and less dependence on solvent polarity.Both radicals show remarkable protonation–deprotonation properties.Besides,2αPyID-TTM exhibits significant fluorescence quenching and colorimetric response toward Fe^(3+)in aqueous solution.This suggests the possibility of a fluorometric/colorimetric dual-channel probe for Fe^(3+).Moreover,an optimized OLED using 2δPyID-TTM as an emissive dopant shows pure red emission and a maximum external quantum efficiency(EQE)of 10.6%.These results show promise for luminescent radicals as fluorescent probes and electroluminescent emitters.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
Dedicating to the exploration of efficient electromagnetic(EM)absorption and electromagnetic interference(EMI)shielding materials is the main strategy to solve the EM radiation issues.The development of multifunction ...Dedicating to the exploration of efficient electromagnetic(EM)absorption and electromagnetic interference(EMI)shielding materials is the main strategy to solve the EM radiation issues.The development of multifunction EM attenuation materials that are compatible together EM absorption and EMI shielding properties is deserved our exploration and study.Here,the graphenewrapped multiloculated NiFe_(2)O_(4) composites are reported as multifunction EM absorbing and EMI shielding materials.The conductive networks configurated by the overlapping flexible graphene promote the riched polarization genes,as well as electron transmission paths,and thus optimize the dielectric constant of the composites.Meanwhile,the introduction of magnetic NiFe_(2)O_(4) further establishes the magnetic-dielectric synergy effect.The abundant non-homogeneous interfaces not only generate effective interfacial polarization,also the deliberate multiloculated structure of NiFe_(2)O_(4) strengthens multi-scattering and multi-reflection sites to expand the transmission path of EM waves.As it turns out,the best impedance matching is matched at a lower filled concentration to achieve the strongest reflection loss value of−48.1 dB.Simultaneously,green EMI shielding based on a predominantly EM absorption and dissipation is achieved by an enlargement of the filled concentration,which is helpful to reduce the secondary EM wave reflection pollution to the environment.In addition,the electrocatalytic properties are further examined.The graphene-wrapped multiloculated NiFe_(2)O_(4) shows the well electrocatalytic activity as electrocatalysts for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),which is mainly attributed to the interconnected structures formed by graphene and NiFe_(2)O_(4) connection.The structural advantages of multiloculated NiFe_(2)O_(4) expose more active sites,which plays an important role in optimizing catalytic reactions.This work provides an excellent jumping-off point for the development of multifunction EM absorbing materials,eco-friendliness EMI shielding materials and electrocatalysts.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 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.
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.
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the support of the National Natural Science Foundation of China(Grant Nos.62175032 and 62104077)Key Science and Technology Project Program of Fujian Province(Grant No.2024HZ022005)+1 种基金Natural Science Foundation for Distinguished Young Scholars of Fujian Province(Grant No.2024J010046)Open Project Program of Wuhan National Laboratory for Optoelectronics(GrantNo.2023WNLOKF011).
文摘Multifunctional materials have attracted tremendous attention in intelligent and interactive devices.However,achieving multi-dimensional sensing capabilities with the same perovskite quantum dot(PQD)material is still in its infancy,with some considering it currently challenging and even unattainable.Drawing inspiration from neurons,a novel multifunctional CsPbBr_(3)/PDMS nanosphere is devised to sense humidity,temperature,and pressure simultaneously with unique interactive responses.The carefully engineered polydimethylsiloxane(PDMS)shell enables the reversible activity of the core CsPbBr_(3),serving a dual role similar to dendrites in conveying and evaluating external stimuli with high sensitivity.Molecular dynamics analysis reveals that the PDMS shell with proper pore density enhances the conductivity in water and heat,imparting CsPbBrs with sensitive but reversible properties.By tailoring the crosslinking density of the PDMS shell,nanospheres can surprisingly show customized sensitivity and reversible responses to different level of stimuli,achieving over 95%accuracy in multi-dimensional and wide-range sensing.The regular pressure-sensitive property,discovered for the frst time,is attributed to the regular morphology of the nanosphere,the inherent low rigidity of the PDMS shell,and the uniform distribution of the CsPbBr core material in combination.This study breaks away from conventional design paradigms of perovskite core-shell materials by customizing the cross-linked density of the shell material.The reversible response mechanism of nanospheres with gradient shell density is deeply explored in response to environmental stimuli,which offers fresh insights into multi-dimensional sensing and interactive display applications.
文摘Materials have driven human progress from the Stone Age to the Silicon Age,and a new age of multifunctional assembled materials is coming.Designing these materials with precisely tailored properties is essential to solve problems that the current generation of materials cannot handle.
基金the National Natural Science Foundation of China(21991141)the Natural Science Foundation of Zhejiang Province(LZ20B010001)Zhejiang Normal University。
文摘Two-dimensional(2D)organic-inorganic hybrid perovskites(OIHPs)have attracted phenomenal attention because of their superior optoelectronic performances.The combination of their structural tunability and material stability offers an unprecedented opportunity to engineer materials with unique functionalities.However,developing a rapid and effective design method for introducing luminescence into dielectric switch and realizing controllable regulation has been an enormous challenge.Thus far,materials with tunable optoelectronic multichannel response have not been successfully implemented.In this study,we successfully developed a facile and effective mechanochemical method for realizing the integration and regulation of luminescence and dielectric switch in 2D perovskites,which is unprecedented for the design of dielectric switching materials.The mild external mechanical stimuli enabled the formation of Mn ion-doped 2D hybrid perovskites(Cyclopropylammonium)2Pb1-xMnxBr4 with excellent dielectric switch and rapidly controllable luminescence of highly efficient blue light,white light,pink light,and orange light.This work will provide a new perspective on the rapid and effective design of multifunctional materials and can inspire the future development of low-cost and high-efficiency electronics.
基金supported by the 111 Project (Grant No. B21034)the Specialized Research Projects of Huanjiang Laboratory+1 种基金ZhujiZhejiang Province
文摘Hydrogels,traditionally valued for their biocompatibility and soft-wet properties,are now being engineered as multifunctional advanced materials to address complex challenges in biomedicine,robotics,food engineering,energy,and environmental science.Recent advances have focused on improving their mechanical properties(e.g.,strength,elasticity,toughness,fatigue resistance,and autonomous repair),responsiveness(e.g.,responsive to pH,temperature,light,glucose,and enzymes),biocompatibility(e.g.,eco-friendly hydrogels derived from natural polymers),and diverse applications.
基金funded by The Hong Kong Polytechnic University Research Grantsupport from the World Class University(WCU)programme,Chonbuk National University,Korea.
文摘During the last decade,tissue engineering has shown a considerable promise in providing more viable alternatives to surgical procedures for harvested tissues,implants and prostheses.Due to the fast development on nano-and biomaterial technologies,it is now possible for doctors to use patients’cells to repair orthopaedic defects such as focal articular cartilage lesions.In order to support the three-dimensional tissue formation,scaffolds made by biocompatible and bioresorbable polymers and composite materials,for providing temporary support of damaged body and cell structures,have been developed recently.Although ceramic and metallic materials have been widely accepted for the development of implants,their non-resorbability and necessity of second surgical operation(like for bone repair),which induce extra pain for the patients,limit their wide applications.The development of different types of biocomposites for biomedical engineering applications is described.These biocomposites include(i)basic biomaterials;(ii)natural fiber-reinforced biocomposites and(iii)nanoparticle-reinforced biocomposites.Their multifunctionality is discussed in terms of the control of mechanical properties,biodegradability and bioresorbability.
基金This research was made possible by a generous grant from the National Natural Science Foundation of China(grant nos.51925303,21875083,and 91833304)the China Postdoctoral Science Foundation(grant nos.2020TQ0117 and 2020M681033)the program“JLUSTIRT”(grant no.2019TD-33).
文摘Stable organic luminescent radicals are a special class of compounds integrating optical,electrical,and magnetic properties.Luminescent radicals not only have potential applications in the field of the organic light-emitting diodes(OLEDs)but can also be applied in the fields of fluorescence sensing,bioimaging,and so forth.Nevertheless,due to the adverse effects of solvent polarity on the luminescent performance of radicals,no feasible approaches have been found in the literature toward fluorescent sensing.In this work,we report two luminescent radicals,2αPyID-TTM and 2δPyID-TTM,whose emissions show high efficiency and less dependence on solvent polarity.Both radicals show remarkable protonation–deprotonation properties.Besides,2αPyID-TTM exhibits significant fluorescence quenching and colorimetric response toward Fe^(3+)in aqueous solution.This suggests the possibility of a fluorometric/colorimetric dual-channel probe for Fe^(3+).Moreover,an optimized OLED using 2δPyID-TTM as an emissive dopant shows pure red emission and a maximum external quantum efficiency(EQE)of 10.6%.These results show promise for luminescent radicals as fluorescent probes and electroluminescent emitters.
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 National Natural Science Foundation of China(NSFC)(Nos.52177014,51977009,11774027,51372282 and 51132002).
文摘Dedicating to the exploration of efficient electromagnetic(EM)absorption and electromagnetic interference(EMI)shielding materials is the main strategy to solve the EM radiation issues.The development of multifunction EM attenuation materials that are compatible together EM absorption and EMI shielding properties is deserved our exploration and study.Here,the graphenewrapped multiloculated NiFe_(2)O_(4) composites are reported as multifunction EM absorbing and EMI shielding materials.The conductive networks configurated by the overlapping flexible graphene promote the riched polarization genes,as well as electron transmission paths,and thus optimize the dielectric constant of the composites.Meanwhile,the introduction of magnetic NiFe_(2)O_(4) further establishes the magnetic-dielectric synergy effect.The abundant non-homogeneous interfaces not only generate effective interfacial polarization,also the deliberate multiloculated structure of NiFe_(2)O_(4) strengthens multi-scattering and multi-reflection sites to expand the transmission path of EM waves.As it turns out,the best impedance matching is matched at a lower filled concentration to achieve the strongest reflection loss value of−48.1 dB.Simultaneously,green EMI shielding based on a predominantly EM absorption and dissipation is achieved by an enlargement of the filled concentration,which is helpful to reduce the secondary EM wave reflection pollution to the environment.In addition,the electrocatalytic properties are further examined.The graphene-wrapped multiloculated NiFe_(2)O_(4) shows the well electrocatalytic activity as electrocatalysts for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),which is mainly attributed to the interconnected structures formed by graphene and NiFe_(2)O_(4) connection.The structural advantages of multiloculated NiFe_(2)O_(4) expose more active sites,which plays an important role in optimizing catalytic reactions.This work provides an excellent jumping-off point for the development of multifunction EM absorbing materials,eco-friendliness EMI shielding materials and electrocatalysts.
