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Bioinspired cellulose-integrated MXene-based hydrogels for multifunctional sensing and electromagnetic interference shielding

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Interdisciplinary materials 2022年第4期1卷 495-506页

作者： Jingjiang Wei Chenglong Zhu Zhihui Zeng Fei Pan Fuqiang Wan Liwen Lei Gustav Nyström Zhengyi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanHubeiPR China Laboratory for Cellulose and Wood Materials Swiss Federal Laboratories for Materials Science and Technology(Empa)DübendorfSwitzerland Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials School of Material Science and EngineeringShandong UniversityJinanShandongPR China Laboratory for Biointerfaces Swiss Federal Laboratories for Materials Science and Technology(Empa)St.GallenSwitzerland Department of Health Science and Technology ETH ZürichZürichSwitzerland

Bioinspired hydrogels are complex materials with distinctive properties comparable to biological *** exceptional sensitivity to various external stimuli leads to substantial application potential in wearable smart ***,these multifaceted hydrogels are often challenging to be combined with pattern customization,stimulus responsiveness,self-healing,and ***,inspired by mussel secretions,a printable,self-healing,and biocompatible MXene-based composite hydrogel was designed and prepared by incorporating Ti3C2Tx MXene nanosheets into the hydrogel framework through the chelation of calcium ions(Ca2+)with polyacrylic acid and cellulose nanofibers at alkaline *** biocompatible conductive hydrogel exhibited sensitivity(gauge factor of 2.16),self-healing(within 1 s),recognition,and adhesion,distinguishing it as an ideal candidate for wearable multifunctional sensors toward strain sensing,vocal sensing,signature detection,and Morse code ***,the multifunctional hydrogel manifested efficient electromagnetic interference shielding properties(reaching more than 30 dB at a thickness of 2.0 mm),protecting electronics and humans from electromagnetic radiation and ***,the presented work represents a versatile strategy for developing environmentally friendly conductive hydrogels,demonstrating the perspectives of intelligent hydrogels for multifunctional applications.

关键词： cellulose nanofiber electromagnetic interference shielding hydrogel MXene sensor

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Bioprocess-inspired preparation of silica with varied morphologies and potential in lithium storage

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Journal of materials Science & technology 2021年第13期72卷 61-68页

作者： Fuqiang Wan Wenxuan Wang Zhaoyong Zou Hao Xie Hang Ping Zhengyi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China School of Chemistry Chemical Engineeringand Life ScienceWuhan University of TechnologyWuhan430070China

As one of the most delicate bioprocesses in nature,biosilicification is closely related to biosilica with various morphologies,and has provided abundant inspiration to materials *** the present study,to explore the biosilica formation process and fabricate silica with an exquisite microstructure for lithiumion battery(LIB)electrodes,a bacterial phage(M13)is used as a biotemplate to synthesize silica with diverse morphologies:cylinders,hexagonal prisms,assemblies of smaller cylinders and nanowires.A facile ethanol bath method is conducted to coat the nanowires with nitrogen-containing carbon and carbon-coated SiO_(2) nanowires with mesochannels(C@msSiO_(2) NWs)are first used as anode materials for *** to the uniform carbon coating and parallel mesochannel structure,the electronic conductivity and capacity to accommodate volume variations were significantly *** the electrochemical perfo rmance test,the composites calcined at 750℃(C@msSiO_(2) NWs-750)show an impressive capacity of 653 mA h g^(-1) at a current density of 500 mA g^(-1) and stability(1000 cycles).In view of the electrochemical test outcomes,the prepa ration of a sophisticated structure with an outstanding potential is easily achieved via a biomimetic strategy.

关键词： Biomimetic preparation Biosilicification M13 phage Silica nanowires Mesochannel

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Advances in cathode materials for Li-O2 batteries

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能源化学 2024年第8期95卷 126-167页

作者： Pengcheng Xing Patrick Sanglier Xikun Zhang Jing Li Yu Li Bao-Lian Su Laboratory of Inorganic Materials Chemistry(CMI) University of Namur61 rue de BruxellesB-5000 NamurBelgium Namur Institute of Structured Matter(NISM) University of Namur61 rue de BruxellesB-5000 NamurBelgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430074HubeiChina Laboratory of Inorganic Materials Chemistry(CMI) University of Namur61 rue de BruxellesB-5000 NamurBelgium Namur Institute of Structured Matter(NISM) University of Namur61 rue de BruxellesB-5000 NamurBelgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430074HubeiChina

Lithium-oxygen(Li-O2)batteries have attracted significant attention due to their ultra-high theoretical energy ***,serious challenges,such as potential lag,low-rate capability,round-trip effi-ciency,and poor cycle stability,greatly limit their practical *** review provides a comprehen-sive account of the development of Li-O2 batteries,elucidates the current discharge/charge mechanism,and highlights both the advantages and bottlenecks of this *** particular,recent research pro-gress on various cathode materials,such as carbon-based materials,noble metals,and non-noble metals,for Li-O2 batteries is deeply reviewed,emphasizing the impact of design strategies,material structures,chemical compositions,and microphysical parameters on oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)kinetics,as well as discharge products and overall battery *** review will also shed light on future research directions for oxygen electrode catalysts and material con-struction to facilitate the development of Li-O2 batteries with maximized electrochemical performance.

关键词： Li-O2 batteries Mechanism Cathode OER ORR

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Structural properties and electrochemical performance of different polymorphs of Nb_(2)O_(5) in magnesium-based batteries

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Journal of Energy Chemistry 2021年第7期30卷 586-592页

作者： Cunyuan Pei Yameng Yin Xiaobin Liao Fangyu Xiong Qinyou An Mengda Jin Yan Zhao Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina State Key Laboratory of Silicate Materials for Architectures International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200GuangdongChina

The selection of the most suitable crystal structure for ions storage and the investigation of the corresponding reaction mechanism is still an ongoing challenge for the development of Mg-based *** this article,high flexible graphene network supporting different crystal structures of Nb2 O5(TTNb_(2)O_(5)@rGO and T-Nb_(2)O_(5)@rGO) are successfully synthesized by a spray-drying-assisted *** three-dimensional graphene framework provides high conductivity and avoids the aggregation of Nb2 O5 *** employed as electrode materials for energy storage applications,TT-Nb_(2)O_(5) delivers a higher discharge capacity of 129.5 mAh g^(-1), about twice that of T-Nb_(2)O_(5) for Mg-storage,whereas,T-Nb_(2)O_(5) delivers a much higher capacity(162 mAh g^(-1)) compared with TT-Nb_(2)O_(5)(129 mAh g^(-1)) for *** investigations reveal the Mg intercalation mechanism and lower Mg^(2+) migration barriers,faster Mg^(2+) diffusion kinetics of TT-Nb_(2)O_(5) as cathode material for Mg-storage,and the faster Li+ diffusion kinetics,shorter diffusion distance of T-Nb_(2)O_(5) as cathode material for *** work demonstrates that exploring the proper crystal structure of Nb2 O5 for different ions storage is necessary.

关键词： Crystal structure Nb_(2)O_(5) Mg-ion storage Li-ion storage Diffusion kinetics

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Abnormal Shrinkage Behavior and Sintering Mechanism of Alumina Nanoparticles

SSRN

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SSRN 2024年

作者： Wang, Dangqiang Li, Jun Liu, Lisheng Mei, Hai Zhang, Jinyong Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics Wuhan University of Technology Wuhan China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

In ultrafast high-temperature sintering process, the green body can be rapidly densified during the heating stage, and many experimental researches prove that sintering temperature and heating rate play an important role. Thus, to further explore the synergistic effect of sintering temperature and heating rate on densification process and reveal the underlying mechanism, equal-sized and unequal-sized alumina nanoparticles are selected to perform molecular dynamic simulations, and sintering behaviors, microstructure evolution, atomic migration and diffusion activation entropy are monitored during heating stages. Results show that high temperature leads to the amorphization of crystal structure of nanoparticles, and fast heating rate retains large sintering driving force at high temperature, making it easier for atoms to cross the migration barrier, thereby, in addition to the enhancement of surface, lattice and interface diffusion, the appearance of viscous flow accelerate the polymerization process of the nanoparticles, leading to two different abnormal shrinkage behaviors. These findings are expected to lay the theoretical foundation for the development and popularization of ultrafast high-temperature sintering (UHS) technology. © 2024, The Authors. All rights reserved.

关键词： Heating rate

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High-Performance Ag_(2)Se/Methyl Cellulose Thermoelectric Composites for Flexible Power Generators

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Energy Material Advances 2024年第1期5卷 275-282页

作者： Zuo Xiao Qiufeng Meng Yong Du Ping Wei Jie Qin Jingyu Chen Zhongchang Wang Per Eklund School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China The Center of Functional Materials for Working Fluids of Oil and Gas Field School of New Energy and MaterialsSouthwest Petroleum UniversityChengdu 610500China Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengdu 610500SichuanChina International Iberian Nanotechnology Laboratory Av.Mestre Jose Veiga s/n4715-330 BragaPortugal Thin Film Physics Division Department of PhysicsChemistry and Biology(IFM)Linköping UniversitySE-58183 LinköpingSweden

Flexible thermoelectric generators(FTEGs)offer a promising solution for powering wearable electronics,while their practical applications are mainly obstructed by the moderate properties of flexible thermoelectric(TE)***,flexible Ag_(2)Se nanowire(NW)/methyl cellulose(MC)composite films were developed via facile screen-printing technology combined with cold pressing and annealing treatment,and a highest power factor of 1,641.58μW m^(-1)K^(-2)at 360 K was *** reasons for the high TE performance of the Ag_(2)Se NW/MC composite films were because,after the annealing treatment,the Ag_(2)Se NWs were sintered to form conductive network structures,the crystallinity of Ag_(2)Se was markedly enhanced,and the content of insulating phase MC in the composite film was *** Ag_(2)Se NW/MC composite film held appreciable flexibility,as its room-temperature power factor(1,312.08μW m^(-1)K^(-2))can retain~93%after bending for 1,000 cycles at a radius of 4 ***,the assembled FTEG consisting of 4 strips can generate a maximal power density of 3.51 W m^(-2)at a temperature difference of 14.1 *** results open an effective and large-scale strategy for fabricating high-performance flexible TE materials and energy-harvesting devices.

关键词： annealing treatment cold pressing Ag Se nanowires methyl cellulose flexible thermoelectric generators ftegs offer thermoelectric composites flexible thermoelectric generators power factor

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Hollow CdS-based photocatalysts

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Journal of Materiomics 2021年第3期7卷 419-439页

作者： Xiangyu Liu Mahmoud Sayed Chuanbiao Bie Bei Cheng Biwei Hu Jiaguo Yu Liuyang Zhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology122 Luoshi RoadWuhan430070China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001China Corresponding author.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology122 Luoshi RoadWuhan430070China.

In recent years,photocatalytic technology,driven by solar energy,has been extensively investigated to ease energy crisis and environmental ***,efficiency and stability of photocatalysts are still *** address these issues,design of advanced photocatalysts is *** sulphide(CdS)nanomaterials are one of the promising *** them,hollow-structured CdS,featured with enhanced light absorption ability,large surface area,abundant active sites for redox reactions,and reduced diffusion distance of photogenerated carriers,reveals a broad application ***,main synthetic strategies and formation mechanism of hollow CdS photocatalysts are ***,we comprehensively discuss the current development of hollow-structured CdS nanomaterials in photocatalytic applications,including H2 production,CO2 reduction and pollutant ***,brief conclusions and perspectives on the challenges and future directions for hollow CdS photocatalysts are proposed.

关键词： Hollow sphere CdS photocatalysts Pollutant degradation Hydrogen production CO2 reduction

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Pancake-Like MOF Solid-State Electrolytes with Fast Ion Migration for High-Performance Sodium Battery

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Nano-Micro Letters 2021年第7期13卷 74-85页

作者： Gang Zhang Jun Shu Lin Xu Xinyin Cai Wenyuan Zou Lulu Du Song Hu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070People’s Republic of China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200People’s Republic of China

Solid-state electrolyte(SSE)of the sodium-ion battery have attracted tremendous attention in the next generation energy storage materials on account of their wide electrochemical window and thermal ***,the high interfacial impedance,low ion transference number and complex preparation process restrict the application of ***,inspired by the excellent sieving function and high specific surface area of red blood cells,we obtained a solid-like electrolyte(SLE)based on the combination of the pancake-like metal-organic framework(MOF)with liquid electrolyte,possessing a high ionic conductivity of 6.60×10^(-4) S cm^(−1),and excellent sodium metal *** addition,we investigated the ion restriction effect of MOF’s apertures size and special functional groups,and the ion transference number increased from 0.16 to ***,the assembled Na_(0.44)MnO_(2)//SLE//Na full batteries showed no obvious capacity decrease after 160 *** material design of SLE in our work is an important key to obtain fast ion migration SLE for high-performance sodium-ion batteries.

关键词： Metal-organic Frameworks Sodium-ion Battery Solid-like Electrolyte Interface Contact

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Yb:CaF_(2)-YF_(3)transparent ceramics ultrafast laser at dual gain lines

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Chinese Physics B 2022年第11期31卷 336-340页

作者： Xiao-Qin Liu Qian-Qian Hao Jie Liu Dan-Hua Liu Wei-Wei Li Liang-Bi Su Shandong Provincial Key Laboratory of Optics and Photonic Device School of Physics and ElectronicsShandong Normal UniversityJinan 250358China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Yb^(3+):CaF_(2)–YF_(3)transparent ceramics with excellent optical quality was successfully fabricated by hot-pressed *** laser properties of this ceramics were investigated for the first *** diode(LD)was applied as the pump source to generate a dual-wavelength mode-locked(ML)*** maximum average output power was 310 mW,which represents the highest output power of ultrafast calcium fluoride ceramic *** spectrum separated at 1048.9 nm and 1049.7 nm with a total pulse duration of 8.9 *** interval period between the beating signals was about 4.3 ps,corresponding to a 0.23 THz beat pulse repetition *** results demonstrate its potential in producing dual-wavelength ultrashort *** Yb^(3+):CaF_(2)–YF_(3)ceramics with low-cost and short-preparation period are ideal candidate materials for ultrafast lasers.

关键词： transparent ceramics passively mode-locking dual-wavelength laser

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Recent Advances on Graphene Quantum Dots for Electrochemical Energy Storage Devices

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Energy & Environmental materials 2022年第1期5卷 201-214页

作者： Noura Zahir Pierre Magri Wen Luo Jean Jacques Gaumet Philippe Pierrat CNRS L2CM UMR 7053 Universit e de Lorraine LCP-A2MC EA4632 Institut Jean Barriol Universit e de Lorraine State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technologywuhan 430070china

Graphene quantum dots(GQDs)which are nanofragments of graphene with an average size between 2 and 50 nm have attracted much attention due to their outstanding properties such as high conductivity,high surface area,and good solubility in various *** combine the quantum confinement and edges effects and the properties of ***,GQDs offers a broad range of applications in various fields(medicine,energy conversion,and energy storage devices).This review will present the recent research based on the introduction of GQDs in batteries,supercapacitors,and microsupercapacitors as electrodes materials or mixed with an active material as an auxiliary ***,discussed on selected examples,summarize the electrochemical performances and finally,challenges and perspectives are recalled for the subsequent optimization strategy of electrode *** review is expected to appeal a broad interest on functional GQDs materials and promote the further development of high-performance energy storage device.

关键词： energy storage graphene quantum dots lithium ion batteries sodium ion batteries supercapacitor

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