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Bio-inspired high-efficiency photosystem by synergistic effects of core-shell structured Au@CdS nanoparticles and their engineered location on{001}facets of SrTiO_(3)nanocrystals

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Journal of materials Science & technology 2023年第5期136卷 159-168页

作者： Wenxuan Wang Wenhao Chi Zhaoyong Zou Pengchao Zhang Kun Wang Ji Zou Hang Ping Jingjing Xie Weimin Wang Zhengyi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Longzhong Laboratory Xiangyang 441000China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China

Natural photosynthesis,which provides a green and high-efficiency energy conversion path by spatial separation of photogenerated carriers through combined actions of molecules ingeniously arranged in an efficient solar nanospace,highlights the importance of rational nanostructure design to realize artificial high-efficiency *** by these unique features,we constructed a high-efficiency ternary photosystem by selectively decorating the{001}facets of 18-facet SrTiO_(3)with Au@CdS photosensitizers via a green photo-assisted *** from the dual-facilitated charge carriers transportation in core-shell structured Au@CdS heterojunction and well-faceted 18-facet SrTiO_(3)nanocrystal,such a photo-catalyst could realize the effective spatial separation of photogenerated electrons and *** expected,the 18-facet SrTiO_(3)/Au@CdS photocatalyst exhibits superior activity in visible-light-driven photocatalytic hydrogen evolution(4.61 mmol h^(−1)g^(−1)),166%improvement in comparison with randomly deposited Au@CdS(1.73 mmol h^(−1)g^(−1)).This work offers new insight into the development of green and high-efficiency photocatalytic systems based on the rational nanostructure design by crystal facet engineering.

关键词： Au@CdS composites Core-shell 18-facet SrTiO_(3) Photogenerated carrier separation Crystal facet engineering Hydrogen production

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A large‐scalable spraying‐spinning process for multifunctional electronic yarns

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SmartMat 2023年第2期4卷 131-141页

作者： Linli Gan Zhen Zeng Haojie Lu Daiqi Li Ke Wei Guangming Cai Yingying Zhang State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education Department of ChemistryTsinghua UniversityBeijingChina

Electronic fibers/textiles have great potential for applications in smart wearables due to their excellent flexibility,air permeability,and wearing ***,it is still challenging to produce reliable electronic textiles at low cost and in a large ***,we report a spraying‐spinning process for fabricating electronic yarns with excellent stability and *** sliver,which is the raw material for spinning conventional cotton yarns,was spray coated with carbon nanotubes(CNTs)and spun on an Ag@nylon yarn,forming a sheath‐core structured CNT@cotton‐Ag@nylon yarn(CCAY).The process is continuous,large‐scalable,applicable to other raw fiber materials and compatible with traditional textile *** as‐prepared CCAY showed superior mechanical durability,washability,and conductivity to typical surface coated *** can be easily processed or integrated into textiles through weaving,knitting,sewing,and *** systematically studied the electromechanical,electro‐thermal,and photothermal performance of CCAY based yarns/fabrics,demonstrating its versatile applications in smart *** addition,CCAY can be further equipped with other features,such as electro‐thermochromic functions,pH sensing and flame resistant *** the large‐scalability,versatility,and low‐cost,we foresee that this spraying‐spinning process for electronic yarns may play important roles in the development of practical smart fibers/textiles.

关键词： electronic yarn e‐textiles large‐scalable multifunctional spraying‐spinning

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Dual-salt poly(tetrahydrofuran) electrolyte enables quasi-solid-state lithium metal batteries to operate at -30 ℃

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Journal of Energy Chemistry 2024年第9期96卷 456-463页

作者： Zhiyong Li Zhuo Li Rui Yu Xin Guo School of Materials Science and Engineering State Key Laboratory of Material Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan 430074HubeiChina The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The stable operation of solid-state lithium metal batteries at low temperatures is plagued by severe restrictions from inferior electrolyte-electrode interface compatibility and increased energy barrier for Li^(+)***,we prepare a dual-salt poly(tetrahydrofuran)-based electrolyte consisting of lithium hexafluorophosphate and lithium difluoro(oxalato)borate(LiDFOB).The Li-salt anions(DFOB−)not only accelerate the ring-opening polymerization of tetrahydrofuran,but also promote the formation of highly ion-conductive and sustainable interphases on Li metal anodes without sacrificing the Li^(+)conductivity of electrolytes,which is favorable for Li^(+)transport kinetics at low *** of this polymer electrolyte in Li||LiFePO_(4)cells show 82.3%capacity retention over 1000 cycles at 30℃and endow stable discharge capacity at−30℃.Remarkably,the Li||LiFePO4 cells retain 52%of their room-temperature capacity at−20℃and 0.1 *** rational design of dual-salt polymer-based electrolytes may provide a new perspective for the stable operation of quasi-solid-state batteries at low temperatures.

关键词： Poly(tetrahydrofuran) Dual-salt electrolyte Solidel ectrolyte interphase Low-temperature operation Quasi-solid-state battery

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Highly Efficient Broadband Achromatic Microlens Design Based on Low-Dispersion materials

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Engineering 2024年第7期38卷 194-200页

作者： Xueqian Wang Chuanbao Liu Feilou Wang Weijia Luo Chengdong Tao Yuxuan Hou Lijie Qiao Ji Zhou Jingbo Sun Yang Bai Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China School of Materials and Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Metalenses with achromatic performance offer a new opportunity for high-quality imaging with an ultracompact configuration;however,they suffer from complex fabrication processes and low focusing *** this study,we propose an efficient design method for achromatic microlenses on a wavelength scale using materials with low dispersion,an adequately designed convex surface,and a thickness profile *** taking into account the absolute chromatic aberration,relative focal length shift(FLS),and numerical aperture(NA),microlens with a certain focal length can be realized through our realized map of geometric ***,the designed achromatic microlenses with low-dispersion fused silica were fabricated using a focused ion beam,and precise surface profiles were *** fabricated microlenses exhibited a high average focusing efficiency of 65%at visible wavelengths of 410-680 nm and excellent achromatic capability via white light ***,the design exhibited the advantages of being polarization-insensitive and *** results demonstrate the effectiveness of our proposed achromatic microlens design approach,which expands the prospects of miniaturized optics such as virtual and augmented reality,ultracompact microscopes,and biological endoscopy.

关键词： Broadband achromatic focusing Metamaterials Low dispersion materials Visible wavelength Microlenses

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Nonclassical crystallization of zinc carbonate hydroxide hydrate nanofilm mediated by calcium ions

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Progress in Natural Science:materials International 2022年第5期32卷 579-585页

作者： Qihang Wang Bicheng Yuan Wenduo Gao Huifeng Hu Meng Cai Zhaoyong Zou Zhengyi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Longzhong Laboratory

To satisfy the demand of zinc oxide（ZnO） with advanced muti-functional properties, significant efforts have been made in synthesizing ZnO with various structure and morphology. In particular, hydrothermal method has attracted considerable attentions, in which Zn4CO3（OH）6·H2O（ZCHH） is commonly found as a metastable precursor. However, the formation and crystallization mechanisms of ZCHH are still lacking and urgently needed. In the present study, the crystallization pathway of ZCHH was systematically investigated, and the results demonstrate that the amorphous zinc carbonate（AZC） was an even more unstable precursor. AZC nanoparticles typically aggregated to form one-dimensional（1D） ZCHH nanorods, however, two-dimensional（2D） ZCHH nanofilms were obtained in the presence of a certain concentration of calcium ion. The results suggest that calcium ions could promote the partial dissolution of AZC and facilitate the aggregation of AZC nanoparticles to form crystalline nanofilm. Moreover, 2D ZnO nanofilms could be obtained by heat treatment of the ZCHH nanofilms. The calcium ion mediated nonclassical crystallization pathway provides inspiration for fabrication of ZnO with controlled morphology and offers new opportunities for inorganic regulated material synthesis.

关键词： Zn4CO3(OH)6·H2O Calcium ion Crystallization ZnO nanofilm

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Full‑Color Tunable and Highly Fire‑Retardant Colored Carbon Fibers

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advanced Fiber materials 2023年第5期5卷 1618-1631页

作者： Yuxin Luo Yu Zhang Tonghe Xing Annan He Shichao Zhao Zhiyu Huang Zihui Liang Xin Liu Yequn Liu Yuxiu Yu Yong Qin Fengxiang Chen Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies and Hubei Key Laboratory of Digital Textile Equipment Wuhan Textile UniversityWuhan 430200People’s Republic of China State Key Laboratory of Coal Conversion CAS Key Laboratory of Carbon Materials and Analytical Instrumentation CenterInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001People’s Republic of China State Key Laboratory of Bio‑Fibers and Eco‑Textiles Institute of Functional Textiles and Advanced MaterialsCollege of Textiles and ClothingQingdao UniversityQingdao 266071People’s Republic of China National Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile UniversityWuhan 430200People’s Republic of China

Carbon fibers(CFs)are widely used in various cutting-edge fields,such as aerospace,military,automobiles,and sports,owing to their unique combination of excellent mechanical properties,good thermal stability,and ***,their inherent super-black appearance makes it difficult to satisfy the aesthetic/fashion requirements of the colorful world,and the flammability of CFs severely limits their practical utilization in high-temperature and other extreme ***,we fabricated full-color tunable colored CFs on a large-scale via atomic layer deposition,based on the monolayer film interference *** exhibited brilliant colors and excellent environmental durability in extreme environments,such as intense ultraviolet(UV)irradiation,accelerated laundering,friction,high-temperature,and low-temperature *** CFs also exhibited excellent fire-retardant performance that could withstand alcohol-lamp flame burning for 60 *** work provides insights into an innovative material/structural design that can help achieve rapid development of the CF industry and global carbon neutrality/sustainability.

关键词： Carbon fibers Carbon fiber fabrics Full-colors Environmental durability Fire-retardant

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Enhancing proton exchange membrane water electrolysis by building electron/proton pathways

Advanced Powder Materials

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advanced Powder materials 2024年第4期3卷 103-112页

作者： Liyan Zhu Hao Zhang Aojie Zhang Tian Tian Yuhan Shen Mingjuan Wu Neng Li Haolin Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan 430070China National Energy Key Laboratory for New Hydrogen-ammonia Energy Technologies Foshan Xianhu LaboratoryFoshan 528200China Hubei Key Laboratory of Fuel Cell Wuhan 430070China

Proton exchange membrane water electrolysis(PEMWE)plays a critical role in practical hydrogen *** for the electrode activities,the widespread deployment of PEMWE is severely obstructed by the poor electron-proton permeability across the catalyst layer(CL)and the inefficient transport *** this work,the PEDOT:F(Poly(3,4-ethylenedioxythiophene):perfluorosulfonic acid)ionomers with mixed proton-electron conductor(MPEC)were fabricated,which allows for a homogeneous anodic CL structure and the construction of a highly efficient triple-phase *** PEDOT:F exhibits strong perfluorosulfonic acid(PFSA)side chain extensibility,enabling the formation of large hydrophilic ion clusters that form proton-electron transport channels within the CL networks,thus contributing to the surface reactant water *** PEMWE device employing membrane electrode assembly(MEA)prepared by PEDOT:F-2 demonstrates a competitive voltage of 1.713 V under a water-splitting current of 2 A cm^(-2)(1.746 V at 2A cm^(-2) for MEA prepared by Nafion D520),along with exceptional long-term ***,the MEA prepared by PEDOT:F-2 also exhibits lower ohmic resistance,which is reduced by 23.4%and 17.6%at 0.1 A cm^(-2) and 1.5 A cm^(-2),respectively,as compared to the MEA prepared by *** augmentation can be ascribed to the superior proton and electron conductivity inherent in PEDOT:F,coupled with its remarkable structural *** characteristic enables expeditious mass transfer during electrolytic reactions,thereby enhancing the performance of PEMWE devices.

关键词： Proton exchange membrane water electrolysis Oxygen evolution reaction Mixed proton-electron conductivity Triple-phase boundaries Membrane electrode assembly

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Exceptional electrostrain with minimal hysteresis and superior temperature stability under low electric field in KNN-based lead-free piezoceramics

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Journal of advanced Ceramics 2024年第3期13卷 364-372页

作者： Huan Liu Yijin Hao Ziqi Yang Tianyi Feng Bin Su Xin Zhang Mengping Xue Bo-Ping Zhang Jing-Feng Li Beijing Municipal Key Laboratory of New Energy Materials and Technologies School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Over the past two decades,(K_(0.5)Na_(0.5))NbO_(3)(KNN)-based lead-free piezoelectric ceramics have made significant ***,attaining a high electrostrain with remarkable temperature stability and minimal hysteresis under low electric fields has remained a significant *** address this long-standing issue,we have employed a collaborative approach that combines defect engineering,phase engineering,and relaxation *** LKNNS-6BZH ceramic,when sintered at T_(sint)=1170℃,demonstrates an impressive electrostrain with a d_(33) value of 0.276%and 1379 pm·V^(-1)under 20 kV·cm^(-1),which is comparable to or even surpasses that of other lead-free and Pb(Zr,Ti)O_(3)***,the electrostrain performance of this ceramic remains stable up to a temperature of 125℃,with the lowest hysteresis observed at 9.73%under 40 kV·cm^(-1).These excellent overall performances are attributed to the presence of defect dipoles involving V′_(A)-V∙∙_(O) and B′_(Nb)-V∙∙O,the coexistence of R-O-T multiphase,and the tuning of the trade-off between long-range ordering and local *** work provides a lead-free alternative for piezoelectric actuators and a paradigm for designing piezoelectric materials with outstanding comprehensive performance under low electric fields.

关键词： lead-free piezoelectric ceramics temperature stability electrostrain potassium sodium niobate low hysteresis

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Structure designing,interface engineering,and application prospects for sodium-ion inorganic solid electrolytes

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InfoMat 2024年第9期6卷 1-49页

作者： Meng Wu Hong Liu Xiang Qi Dabing Li Chao Wang Ce-Wen Nan Li-Zhen Fan Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Advanced Energy Materials and TechnologiesUniversity of Science and Technology BeijingBeijingPeople's Republic of China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingPeople's Republic of China

All-solid Na-ion batteries(ASNIBs)present significant potential for integration into large-scale energy storage systems,capitalizing on their abundant raw materials,exemplary safety,and high energy *** the pivotal components propelling the advancement of ASNIBs,inorganic solid electrolytes(ISEs)have garnered substantial attention in recent years due to their high ionic conductivity(σ),wide electrochemical stability window(ESW),and high shear ***,this review systematically encapsulates the latest strides in Na-ion ISEs,furnishing a comprehensive panorama of various ISE systems along with their interface engineering strategies against the *** prime focus resides in accentuating key strategies for refining ion conduction properties and interfacial compatibility of ISEs through structure design and interface ***,the review explores the foremost challenges and prospects inherent to sodium-ion ISEs,striving to deepen our understanding of how to engineer more robust and efficient ISEs and interface stability,poised for the forthcoming era of advanced ASNIBs.

关键词： all-solid Na-ion batteries inorganic solid electrolytes interface stability ionic conductivity modification strategies

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Ballistic response mechanism and resistance-driven evaluation method of UHMWPE composite

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Defence technology(防务技术) 2025年第2期44卷 1-16页

作者： Yemao He Johnny Qing Zhou Yanan Jiao Hongshuai Lei Zeang Zhao Daining Fang Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures Beijing Institute of TechnologyBeijing 100081China Beijing Protech New Material Science Co. Ltd.Beijing 102200China School of Textile Science and Engineering Tiangong UniversityTianjin 300387China Key Laboratory of Advanced Textile Composite Materials Ministry of EducationInstitute of Textile Composite MaterialsTiangong UniversityTianjin 300387China

The use of ultra-high molecular weight polyethylene(UHMWPE)composite in the design of lightweight protective equipment,has gained a lot of ***,there is an urgent need to understand the ballistic response mechanism and theoretical prediction model of *** paper explores the ballistic response mechanism of UHMWPE composite through experimental and simulation ***,a resistance-driven modeling method was proposed to establish a theoretical model for predicting the bulletproof *** ballistic response mechanism of UHMWPE composite encompassed three fundamental modes:local response,structural response,and coupled *** occurrence ratio of these fundamental response modes during impact was dependent on the projectile velocity and laminate *** bulletproof performance of laminate under different response modes was assessed based on the penetration depth of the projectile,the bulging height on the rear face of the laminate,the thickness of remaining sub-laminate,and residual velocity of the *** absolute deviations of bulletproof performance indicator between theoretical value and experimental value were well within 11.13%,demonstrating that the established evaluation model possessed high degree of prediction accuracy.

关键词： UHMWPE composite Ballistic response mechanism Theoretical model Performance evaluation

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