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arXiv 2021年

作者： Liu, Zongwen Huang, Pengru Sun, Lixian Liu, Yanping Qu, Jiangtao Cairney, Julie Zheng, Zhong Wang, Zhiming M. Khan, Naveed A. Lai, Zhiping Fu, Li Teng, Bing Zhou, Cuifeng Zhao, Hong Xu, Fen Xiong, Pan Zhu, Junwu Yuan, Peng Tsoutas, Kosta Akhavan, Behnam Bilek, Marcela M. Ringer, Simon P. Novoselov, Kostya S. School of Chemical and Biomolecular Engineering The University of Sydney NSW2006 Australia The University of Sydney Nano Institute The University of Sydney NSW2006 Australia Department of Materials Science and Engineering National University of Singapore 117575 Singapore Guangxi Key Laboratory of Information Materials Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials School of Material Science & Engineering Guilin University of Electronic Technology Guilin541004 China School of Physics and Electronics Hunan Key Laboratory for Super-Microstructure and Ultrafast Process Central South University Hunan410083 China School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney SydneyNSW2006 Australia The Australian Centre for Microscopy and Microanalysis The University of Sydney NSW2006 Australia Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu610054 China Advanced Membranes and Porous Materials Center Division of Physical Science and Engineering King Abdullah University of Science and Technology Thuwal23955 Saudi Arabia State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an710072 China College of Physics Qingdao University Qingdao266071 China Key Laboratory for Soft Chemistry and Functional Materials Ministry Education Nanjing University of Science and Technology Nanjing210094 China CAS Key Laboratory of Mineralogy and Metallogeny Guangdong Provincial Key laboratory of Mineral Physics and Materials Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China School of Physics The University of Sydney NSW2006 Australia School of Biomedical Engineering The University of Sydney NSW2006 Australia

All biological organisms, from plants to living creatures, can heal minor wounds and damage. The realization of a similar self-healing capacity in inorganic materials has been a design target for many decades. This would represent a breakthrough in materials engineering, enabling many novel technological applications, since such materials would be able to resist damage caused by electromagnetic irradiation and/or mechanical impact. Here we demonstrate that a high-entropy oxide is intrinsically capable of undergoing an autonomous self-repairing process. Transmission electron microscopy revealed that the spinel structure of (AlCoCrCu0.5FeNi)3O4 can regrow and repair itself at the atomic level when damaged. Density functional theory calculations reveal that the extra enthalpy stored in the high entropy material during fabrication can be released to effectively heal macroscopic defects by regrowing into a partially ordered state. This extraordinary self-repairing phenomenon makes this new material highly desirable as a coating, enabling structures used in harsh environments to better withstand damage, such as cosmic irradiation in space, nuclear irradiation in nuclear power facilities, or tribological damage. Most importantly, our results set the general design principles for the synthesis of self-repairing materials. Copyright © 2021, The Authors. All rights reserved.

关键词： Entropy

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Synthesis of hierarchical sieve-like mesoporous silica nanoparticle aggregates via centrifugal method for drug delivery system

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Chinese Chemical Letters 2018年第12期29卷 1804-1810页

作者： Qin Gao Wensheng Xie Lingyun Zhao Yu Wang Wei Zhang Qiang Cai School of Materials Science&Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of New Ceramics and Fine Processing Advanced Materials of Ministry of Education of ChinaTsinghua UniversityBeijing 100084China National Center for NanoScience and Technology Beijing 100190China

A facile approach towards the synthesis of a novel hierarchical sieve-like structure of mesoporous silica nanoparticle aggregates(hsMSNA) is reported using a centrifugal method at room temperature, based on the Kelvin-Helmholtz instability and soft-template method. The developed approach is simple and can potentially be applied for scaled-up preparation. Importantly, scanning electron microscopy,transmission electron microscopy, small-angle X-ray diffraction, and nitrogen adsorption-desorption experiments characterize the mesoporous silica as hsMSNA consisting of 40-100 nm mesoporous silica nanoparticles piled at 1-2 μm cylindrical pores in sieve-like tissues. Further, various pore sizes and sievemesh-, and vesicular-like structures can be obtained by adjusting the reaction conditions. The BrunauerEmmett-Teller specific surface area is as large as 500 m~2/g with a 47 cm~3/g pore volume, facilitating easy drug loading and delivery. Cytotoxicity assays show that the samples are not cytotoxic under a high concentration of 200μg/mL. Finally, the high drug encapsulation efficiency and sustained release behaviors indicats the considerable potential of the hsMSNA as a drug delivery system in the field of nanomedicine.

关键词： Mesoporous silica Hierarchical structure Interface growth Centrifugal method Drug delivery system

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Resonant Inelastic X-ray Scattering for Studying materials for Renewable Energy Conversion and Storage

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iScience 2025年

作者： Rongfu Hong Lixin Xing Mingjie Wu Zhangsen Chen Ning Wang Ling Meng Siyu Ye Liguang Wang Gaixia Zhang Lei Du Huangpu Hydrogen Energy Innovation Centre/School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 P. R. China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. China Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications Varennes QC J3X 1S2 Canada College of Chemical and Biological Engineering Zhejiang University Hangzhou 310058 P. R. China Department of Electrical Engineering École de Technologie Supérieure (ÉTS) Montréal QC H3C 1K3 Canada

Renewable energy conversion and storage technologies, including batteries, fuel cells, and electrolyzers, have garnered global attention. Electrode materials are crucial in determining the performance and lifespan of the corresponding devices. Transition metals and light elements are key components in electrode materials, enabling efficient energy conversion by directly providing active sites or indirectly optimizing material electronic structures. To understand the relationship between electronic structures and device performance, advanced technologies like X-ray absorption spectroscopy (XAS) have been developed. Recently, resonant inelastic X-ray scattering (RIXS) features coupled with X-ray emission spectra (XES) have emerged as a complementary tool, providing additional insights into material electronic structures. This review focuses on recent advances in using XES, particularly RIXS, for studying energy conversion and storage materials, highlighting the unique features and potential of RIXS for quantitative analysis. This work aims to stimulate interests in utilizing RIXS features in the field of energy conversion and storage.

关键词： Resonant inelastic X-ray scattering Electronic structure Energy storage and conversion Transition metal element Light element

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Urea/Thiourea Imine Linkages Provide Accessible Holes in Flexible Covalent Organic Frameworks and Dominates Self-Adaptivity and Exciton Dissociation

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Angewandte Chemie 2024年第7期137卷

作者： Chencheng Qin Prof. Xiaodong Wu Wenyan Zhou Miao Li Prof. Shuai Bi Prof. Lin Tang Dr. Hao Huang Prof. Wenguang Tu Prof. Xingzhong Yuan Prof. Edison Huixiang Ang Prof. Weiling Sun Long Chen Zhaoli Liu Prof. Bing He Prof. Lai Lyu Prof. Yan Wu Prof. Wen Liu Prof. Hou Wang College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education) Hunan University Changsha 410082 China These authors equally contributed this work College of Materials Science and Engineering Nanjing Tech University Nanjing 211816 China School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore School of Science and Engineering The Chinese University of Hong Kong Shenzhen 518172 Guangdong P. R. China Natural Sciences and Science Education National Institute of Education Nanyang Technological University Singapore 637616 Singapore The Key Laboratory of Water and Sediment Sciences Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing 100871 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University 430200 Wuhan China Institute of Rural Revitalization Guangzhou University Guangzhou 510006 China College of Environment and Ecology Hunan Agricultural University Changsha 410128 P. R China National Laboratory for Molecular Sciences Peking University Beijing 100871 China

Unraveling the robust self-adaptivity and minimal energy-dissipation of soft reticular materials for environmental catalysis presents a compelling yet unexplored avenue. Herein, a top-down strategy, tailoring from the unique linkage basis, flexibility degree, skeleton electronics to trace-guest adaptability, is proposed to fill the understanding gap between micro-soft covalent organic frameworks (COFs) and photocatalytic performance. The thio(urea)-basis-dominated linkage within benzotrithiophene-based COFs induce the framework contraction/swelling (intralayer micro-flexibility) in response to tetrahydrofuran or water. Adaptability of micro-flexible thiourea-COF with pore hydrophilicity not only contributes to the favorable mass transfer, but also enhances the accessible redox active sites, culminating in nearly 100 % removal of micropollutant with low-energy dissipation in wastewater. The incorporating urea/thiourea into imine linkage facilitates polarization reduction and exciton dissociation within skeleton wall, inducing strong localization for holes. This transformation facilitates interchain charge transport and unbalanced distribution conducive to oxidative holes-mediated micropollutant decomposition.

关键词： micro-flexible COFs conformation photocatalysis self-adaptivity

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Regulating Non-Equilibrium Solvation Structure in Locally Concentrated Ionic Liquid Electrolytes for Wide-Temperature and High-Voltage Lithium Metal Batteries

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Angewandte Chemie 2024年第1期137卷

作者： Haifeng Tu Zhicheng Wang Jiangyan Xue Zhiyong Tang Yang Liu Xiaofang Liu Lingwang Liu Suwan Lu Shixiao Weng Yiwen Gao Guochao Sun Zheng Liu keyang Peng Xin Zhang Dejun Li Guangye Wu Meinan Liu Jianchen Hu Hong Li Jingjing Xu Xiaodong Wu School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei Anhui 230026 China i-lab Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou Jiangsu 215123 China These authors contributed equally to this work: Haifeng Tu Zhicheng Wang Institute of Physics Chinese Academy of Sciences Beijing 100190 China Tianmu Lake Institute of Advanced Energy Storage Technologies Liyang 213300 China Jiangxi Key Laboratory of Flexible Electronics Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials School of Resources Environment and Materials Guangxi University Nanning 530004 China National Engineering Laboratory for Modern Silk College of Textile and Clothing Engineering Research Center of Cooperative Innovation for Functional Organic/Polymer Material Micro/Nanofabrication Soochow University Suzhou 215123 China College of Material Science and Engineering Hohai University Nanjing Jiangsu 210024 China

The development of high-voltage lithium metal batteries (LMBs) encounters significant challenges due to aggressive electrode chemistry. Recently, locally concentrated ionic liquid electrolytes (LCILEs) have garnered attention for their exceptional stability with both Li anodes and high-voltage cathodes. However, there remains a limited understanding of how diluents in LCILEs affect the thermodynamic stability of the solvation structure and transportation dynamics of Li + ions. Herein, we propose a wide-temperature LCILEs with 1,3-dichloropropane (DCP13) diluent to construct a non-equilibrium solvation structure under external electric field, wherein the DCP13 diluent enters the Li + ion solvation sheath to enhance Li + ion transport and suppress oxidative side reactions at high-nickel cathode (LiNi 0.9 Co 0.05 Mn 0.05 O 2 , NCM90). Consequently, a Li/NCM90 cell utilizing this LCILE achieves a high capacity retention of 94 % after 240 cycles at 4.3 V, also operates stably at high cut-off voltages from 4.4 V to 4.6 V and over a wide temperature range from −20 °C to 60 °C. Additionally, an Ah-level pouch cell with this LCILE simultaneously achieves high-energy-density and stable cycling, manifesting the practical feasibility. This work redefines the role of diluents in LCILEs, providing inspiration for electrolyte design in developing high-energy-density batteries.

关键词： Lithium metal batteries locally concentrated ionic liquid electrolyte chloroalkane diluent non-equilibrium solvation structure external electric field

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Carbon nanocomposites with high photothermal conversion efficiency

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Science China materials 2018年第7期61卷 905-914页

作者： Qian Zhang Weilin Xu Xianbao Wang Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Key Laboratory for the Green Preparation and Application of Functional Materials Ministry of Education Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Ministry of Education Wuhan Textile University Wuhan Textile University Wuhan 430200 China

Photothermal conversion for water vapor gen- eration is a novel strategy and an efficient way to utilize solar energy, which has great potential for water purification and desalination. In this review, the development of photothermal conversion and the classification of absorbers for solar vapor generation systems are presented, especially in recent devel- opment of carbon nanocomposites （carbon nanotubes and graphene） as solar vapor generation devices. Combined with recent progresses and achievements in this field, we discuss the challenges and opportunities for photothermal conversion based on carbon nanocomposites as well as their promising applications.

关键词： carbon composites photothermal conversion solarenergy water vapor

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Strain Sensing Elastic Core-Spun Yarns Based on Long Silver Nanowires

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Journal of Physics: Conference Series 2021年第1期2101卷

作者： Liping Jia Qi Zeng Quanquan Zhu Runxuan Cai Wei Guo Jianhua Ran Shuguang Bi Shiwei Li Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing State Key Laboratory of New Textile Materials and Advanced Processing Technologies College of Chemistry and Chemical Engineering Wuhan Textile University Wuhan 430200 China. Department of Biochemistry & Molecular & Cellular Biology Georgetown University Washington DC 20057 United States College of Physical Education Jianghan University Wuhan 430056 China

Strain sensing is one of the important functions of intelligent fabric, which can transform the external stress (or strain) into visible electrical signals and monitor the characteristics of human physiology and motion. At present, the flexible strain sensor has low sensitivity, small strain range and unstable performance after repeated stretching. In this work, core-spun yarns with polyurethane (PU) filament as core and long silver nanowires (AgNWs) loaded cotton fiber as shell was fabricated by spinning technology. The results showed that when the loading of AgNWs was 10 wt%, the strain range of the PU/cotton@AgNWs core-spun yarn was 0-60%, the gauge factor of 12.6 was linear, and the strain sensing and mechanical properties were stable after repeated stretching. This strain sensing elastic core-spun yarns constructed by spinning technology could be used as one of the important materials for intelligent wearable devices.

关键词：

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Observation of giant interfacial spin Hall angle in Y3Fe5O12/Pt heterostructures

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Physical Review B 2019年第6期100卷 064404-064404页

作者： Y. Dai S. J. Xu S. W. Chen X. L. Fan D. Z. Yang D. S. Xue D. S. Song J. Zhu S. M. Zhou Xuepeng Qiu Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics School of Physics Science and Engineering Tongji University Shanghai 200092 China The Key Lab for Magnetism and Magnetic Materials of Ministry of Education Lanzhou University Lanzhou 730000 China National Center for Electron Microscopy in Beijing Key Laboratory of Advanced Materials (MOE) and The State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

By self-consistently resolving the disentanglement of the spin Hall angle (SHA) and the spin diffusion length (SDL) through the ratio of Hanle and spin Hall magnetoresistances, the SHA in heavy metals has been for the first time rigorously extracted. For Pt on ferromagnetic insulator Y3Fe5O12, the genuine SHA scales as an exponential function of the Pt layer thickness. The spin Hall effect is proved to be dominated by the Berry-phase-induced intrinsic mechanism. In particular, the giant interfacial SHA of 0.33 is observed and is attributed to the broken-symmetry-induced nonspecular electronic scattering at the Y3Fe5O12/Pt interface. At last, the spin relaxation process is found to be dominated by the Elliott-Yafet and D'yakonov-Perel' mechanisms for thin and thick Pt layers, respectively.

关键词： Spin Hall effect Spin relaxation

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[email protected] core-shell nanowires towards oxygen reduction reaction

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Chemical Engineering Journal 2021年 421卷

作者： Qi Xue Hui-Ying Sun Ya-Nan Li Ming-Jun Zhong Fu-Min Li Xinlong Tian Pei Chen Shi-Bin Yin Yu Chen Key Laboratory of Macromolecular Science of Shaanxi Province Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education) Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University Xi’an 710062 PR China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Lab of Fine Chemistry School of Chemical Engineering and Technology Hainan University Haikou 570228 PR China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials Guangxi University Nanning Guangxi 530004 PR China

Noble metal based one-dimensionally (1D) bimetallic nanostructures are attracting increasing interest in energy conversion field because of their structural advantages and tunable chemical composition. At present, the facile and efficient synthesis of high-quality Au-core noble metal-shell nanowires still maintains the challenge. Herein, we develop a feasible one-pot chemical-reduction strategy to rapidly synthesize high-quality [email protected] core–shell nanowires ( [email protected] CSNWs) in 1-naphthol ethanol solution and explore their potential application in electrocatalysis. Expermattial results show the formation core–shell structure originates from the deposition-growth of Ir atoms at preferentially generated Au nanowires surface. When using as an electrocatalyst towards oxygen reduction reaction (ORR) in alkaline media, [email protected] CSNWs show Pt-like ORR electroactivity due to the compositional synergism effect and structural advantages of 1D nanowires, accompanying with excellent durability and extremely enhanced methanol tolerance towards ORR.

关键词： Low temperature fuel cells Pt-free electrocatalyst Core-shell structure Methanol tolerance Oxygen reduction reaction

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Medical Additive Manufacturing: From a Frontier technology to the Research and Development of Products

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Engineering 2020年第11期6卷 1217-1221页

作者： Guixing Qiu Wenjiang Ding Wei Tian Ling Qin Yu Zhao Lianmeng Zhang Jian Lu Daijie Chen Guangyi Yuan Chengtie Wu Bingheng Lu Ruxu Du Jimin Chen Mo Elbestawi Zhongwei Gu Dichen Li Wei Sun Yuanjin Zhao Jie He Dadi Jin Bin Liu Kai Zhang Jianmo Li Kam WLeong Dewei Zhao Dingjun Hao Yingfang Ao Xuliang Deng Huilin Yang ShaoKeh Hsu Yingqi Chen Long Li Jianping Fan Guohui Nie Yun Chen Hui Zeng Wei Chen Yuxiao Lai Department of Orthopedics Peking Union Medical College HospitalChinese Academy of Medical Science 8 Peking Union Medical CollegeBejjing 100730.China National Engineering Research Center of Light Alloys Net Forming&State Key Laboratony of Metal Matrix Composite Shanghai Jiao Tong UniversityShanghai 200240China Notional Engineering Research Center of Mg Materials and Applicarions and School of Materials Science 8r Engineering.Shanghai Jlao Tong University Shanghai 200240China Department of Spine Surgery Beijing Jishuitan HospitalBeijing 100035China Center for Troanslational Medicine Research and Development Institute of Biomedical and Health EngineeringShenzhen Insitute of Advanced Technology.Chinese Academy of SciencesShenzhen 518055China Guangdong Engineering Laboratony of Biomaterials Additive Manufacturing Guangdong 518055China Musculoskeletal Research Laboratory of the Department of Orthopedics 8 Traumatology and Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong 999077.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Center for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstiuteShenzhen 518057.China Hong Kong Branch of National Precious Metals Material Engineering Research Center Department of Material Science and EngineeringCity Untiversity of Hong KongHong Kong 999077.China Department of Mechanical Engineering ity Untiversity of Hong Kong.Hong Kong 9977 China School of Pharmacy.Shanghai Jiao Tong University Shanghai 200240China China State Instute of Pharmaceutical Industry Shanghai Institute of Pharmaceutical IndustryShonghai 201203China Shanghai Innovation Instinute for Materials Shanghai 200444.China State Key Laboratory of High-Performance Ceramies and Superfine Microstructure Shanghai Institute of CeramicsChinese Acadermy 0f SciencesShanghai 200050Ch

*** and development(R&D)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other fields,making them an important basis in the field of three-dimensional(3D)*** and challenges related to material types,powder properties,formability,viscoelasticity,and so forth also share common *** example,many metal materials are used in the field of aviation,while metals,polymers,and inorganic materials are used in the field of *** most widely used materials in biomedicine are *** homogeneous and non-homogeneous composites are also available for 3D printing,and impose an additional challenge in additive manufacturing;the use of heterogeneous composites in 3D printing is particularly challenging.

关键词： composites printing additive

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