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Fabrication of low thermal expansion SiC/ZrW2O8 porous ceramics

IOP Conference Series: materials Science and Engineering 2011年第1期20卷

作者： A Poowancum K Matsumaru I Juárez-Ramírez L M Torres-Martínez Z Y Fu S W Lee K Ishizaki Department of Mechanical Engineering Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka Niigata 940-2188 Japan Universidad Autónoma de Nuevo León Av. Universidad s/n San Nicolás de los Garza NL C.P. 66451 Mexico State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 China Department of Environment Engineering Sun Moon University 100 Kalsan-ri Tangjeong-myeon Asan Chungnam 336-708 Korea

Low or zero thermal expansion porous ceramics are required for several applications. In this work near zero thermal expansion porous ceramics were fabricated by using SiC and ZrW2O8 as positive and negative thermal expansion materials, respectively, bonded by soda lime glass. The mixture of SiC, ZrW2O8 and soda lime glass was sintered by Pulsed Electric Current Sintering (PECS, or sometimes called Spark Plasma Sintering, SPS) at 700 °C. Sintered samples with ZrW2O8 particle size smaller than 25 μm have high thermal expansion coefficient, because ZrW2O8 has the reaction with soda lime glass to form Na2ZrW3O12 during sintering process. The reaction between soda lime glass and ZrW2O8 is reduced by increasing particle size of ZrW2O8. Sintered sample with ZrW2O8 particle size 45-90 μm shows near zero thermal expansion.

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Graphene Foams: A Bubble‐Derived Strategy to Prepare Multiple Graphene‐Based Porous materials (Adv. Funct. Mater. 23/2018)

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advanced Functional materials 2018年第23期28卷

作者： Rujing Zhang Ruirui Hu Xinming Li Zhen Zhen Zhenhua Xu Na Li Limin He Hongwei Zhu Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material Department 5 P.O. Box 81‐5 AECC Beijing Institute of Aeronautical Materials Beijing 100095 China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering and Center for Nano and Micro Mechanics Tsinghua University Beijing 100084 China International Center for Materials Nanoarchitectonics (WPI‐MANA) National Institute for Materials Science (NIMS) 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan

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Author Correction: Reversely trapping atoms from a perovskite surface for high-performance and durable fuel cell cathodes

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Nature Catalysis 2024年 1244页

作者： Zechao Zhuang Jiarui Yang Dingsheng Wang Yadong Li Yihang Li Liangdong Fan Ruohan Yu Jinsong Wu Lixue Xia Yan Zhao Zhiquan Lang Jiexin Zhu Jiazhao Huang Jiaou Wang Yu Wang Department of Chemistry Tsinghua University Beijing P. R. China College of Chemistry and Environmental Engineering Shenzhen University Shenzhen P. R. China Interdisciplinary Research Center of Smart Sensors Academy of Advanced Interdisciplinary Research Xidian University Xi’an P. R. China Nanostructure Research Centre Wuhan University of Technology Wuhan P. R. China State Key Laboratory of Silicate Materials for Architectures International School of Materials Science and Engineering Wuhan University of Technology Wuhan P. R. China The Institute of Technological Sciences Wuhan University Wuhan P. R. China Center for Marine Materials Corrosion and Protection College of Materials Xiamen University Xiamen P. R. China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan P. R. China State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan P. R. China Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing P. R. China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai P. R. China

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Enhanced Charge-Carrier Dynamics and Efficient Photoelectrochemical Nitrate-to-Ammonia Conversion on Antimony Sulfide-Based Photocathodes

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Angewandte Chemie 2024年第48期136卷

作者： Shijie Ren Rui-Ting Gao Jidong Yu Yang Yang Xianhu Liu Limin Wu Lei Wang College of Chemistry and Chemical Engineering College of Energy Material and Chemistry Inner Mongolia University Hohhot 010021 China NanoScience Technology Center Department of Materials Science and Engineering Department of Chemistry Renewable Energy and Chemical Transformation Cluster The Stephen W. Hawking Center for Microgravity Research and Education University of Central Florida Orlando Florida 32826 United States State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial Equipment National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Wenhua Road 97–1 Zhengzhou 450002 China Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 China

The photoelectrochemical reduction of nitrate to ammonia (PEC NO 3 RR) has emerged as a promising pathway for facilitating the natural nitrogen cycle. The PEC NO 3 RR can lower the reduction potential needed for ammonia synthesis through photogenerated voltage, showcasing the significant potential for merging abundant solar energy with sustainable nitrogen fixation. However, it is influenced by the selective photocathodes with poor carrier kinetics, low catalytic selectivity, and ammonia yields. There are few reports on suitable photoelectrodes owning efficient charge transport on PEC NO 3 RR at low overpotentials. Herein, we rationally constructed the CuSn alloy co-catalysts on the antimony sulfides with a highly selective PEC ammonia and an ultra-low onset potential (0.62 V RHE ). CuSn/TiO 2 /Sb 2 S 3 photoelectrodes achieved an ammonia faradic efficiency of 97.82 % at a low applied potential of 0.4 V RHE , and an ammonia yield of 16.96 μmol h −1 cm −2 at 0 V RHE under one sun illumination. Dynamics experiments and theoretical calculations have demonstrated that CuSn/TiO 2 /Sb 2 S 3 has an enhanced charge separation and transfer efficiency, facilitating photogenerated electrons to participate in PEC NO 3 RR quickly. Meanwhile, moderate NO 2 * adsorption on this photocathode optimizes the catalytic activity and increases the NH 4 + yield. This work opens an avenue for designing sulfide-based photocathodes for the efficient route of solar-to-ammonia conversion.

关键词： Photoelectrochemical nitrate reduction reaction Sb2S3 photocathodes CuSn alloyed co-catalysts charge carrier dynamics low onset potential

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P‐Dopant: LiTFSI‐Free Spiro‐OMeTAD‐Based Perovskite Solar Cells with Power Conversion Efficiencies Exceeding 19% (Adv. Energy Mater. 32/2019)

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advanced Energy materials 2019年第32期9卷

作者： Boer Tan Sonia R. Raga Anthony S. R. Chesman Sebastian O. Fürer Fei Zheng David P. McMeekin Liangcong Jiang Wenxin Mao Xiongfeng Lin Xiaoming Wen Jianfeng Lu Yi‐Bing Cheng Udo Bach Department of Chemical Engineering Monash University Clayton Victoria 3800 Australia ARC Center of Excellence in Exciton Science Monash University Clayton Victoria 3800 Australia CSIRO Manufacturing Clayton Victoria 3168 Australia Melbourne Centre for Nanofabrication Australian National Fabrication Facility Clayton Victoria 3168 Australia Centre for Micro‐Photonics Swinburne University of Technology Hawthorn Victoria 3122 Australia Department of Materials Science and Engineering Monash University Clayton Victoria 3800 Australia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China

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Dual Ion Co-Insertion Induced Spontaneous and Reversible Phase Conversion Chemistry for Unprecedented Zn2+Storage

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Angewandte Chemie 2024年第2期137卷

作者： Xikun Zhang Junwei Zhang Dr. Haoxiang Yu Dr. Thomas L. Madanu Maoting Xia Dr. Pengcheng Xing Prof. Alexandru Vlad Prof. Jie Shu Prof. Bao-Lian Su School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Université Catholique de Louvain Louvain-la-Neuve B-1348 Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi road Wuhan Hubei 430070 China Clare Hall University of Cambridge Cambridge CB2 1EW UK

Prussian blue analogues are highly promising electrode materials due to their versatile electrochemical activity and low cost. However, they often suffer from severe structural damage caused by the Jahn–Teller distortion and dissolution of high-spin outer metal ions, resulting in poor cycle life. material modification and electrolyte regulation have been the common approaches to address this issue, albeit with very limited success. We report here a novel and efficient strategy to preserve structural stability by co-inserting Co 2+ and Zn 2+ ions in KCo[Fe(CN) 6 ]. This co-insertion induced a spontaneous and reversible phase conversion by the replacement of low-spin inner ion (Fe 3+ ), which efficiently relieves structural damage caused by Jahn–Teller distortion and metal-ion dissolution, leading to an outstanding Zn 2+ storage capacity and an exceptional improvement of cycle life with a capacity retention of 97.7 % over 4400 cycles at 40 C. We also demonstrated the enhancement of co-intercalation on ion migration using a combined approach of experimental and density functional theory (DFT) calculations. This work provides an important progress to solve the cycle stability of Prussian blue analogues towards their practical application as electrode materials for aqueous batteries.

关键词： Prussian blue analogues Aqueous zinc ion battery Structural damage common ion effect Phase conversion

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A facile spray-pressing synthesis approach for reusable photothermal masks

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iScience 2023年第8期26卷 107286页

作者： Yi Lu Yi-Xuan Liu Yong Wang Robert Oestreich Zi-Yan Xu Wen Zhang Philipp Hügenell Christoph Janiak Xiao-Yu Yang Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Nanshan District Shenzhen 518055 China. Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany. School of Chemical Engineering and Technology Sun Yat-sen University Zhuhai 519082 China. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute Wuhan University of Technology Wuhan 430070 China. Division Thermal Systems and Buildings Fraunhofer Institute for Solar Energy Systems ISE Heidenhofstraße 2 Freiburg 79110 Germany.

Certain types of face masks are highly efficient in protecting humans from bacterial and viral pathogens, and growing concerns with high safety, low cost, and wide market suitability have accelerated the replacement of reusable face masks with disposable ones during the last decades. However, wearing these masks creates countless problems associated with personnel comfort as well as more significant issues related to the cost of fabrication, the generation of medical waste, and environmental contaminants. In this work, we present a facile spray-pressing technique for the production of P-masks with a potential scale-up prospect by adding a graphene layer on one side of meltblown fabric and a functional layer on the other side. In principle, this technique could be easily integrated into the present automatic mask production process and the masks have self-cleaning and/or self-sterilizing properties when it is exposed to solar or simulated solar irradiation.

关键词： Applied sciences materials synthesis Nanotechnology fabrication

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Front Cover: Titanium Vacancies in TiO2Nanofibers Enable Highly Efficient Photodriven Seawater Splitting (Chem. Eur. J. 57/2021)

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Chemistry – A European Journal 2021年第57期27卷

作者： Yan-Xiang Zhang Dr. Si-Ming Wu Dr. Ge Tian Xiao-Fang Zhao Dr. Li-Ying Wang Dr. Yi-Xia Yin Lu Wu Qian-Ni Li Prof. Dr. Yue-Xing Zhang Prof. Dr. Jin-Song Wu Prof. Dr. Christoph Janiak Prof. Dr. Kenneth I. Ozoemena Prof. Dr. Menny Shalom Prof. Dr. Xiao-Yu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Materials Science and Engineering & NRC (Nanostructure Research Centre) Wuhan University of Technology Wuhan 430070 P. R. China School of Chemical Engineering and Technology Sun Yat-sen University (Zhuhai) Zhuhai 519000 P. R. China School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 P. R. China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry and Chemical Engineering Hubei University Wuhan 430062 P. R. China Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf Düsseldorf 40204 Germany Molecular Sciences Institute School of Chemistry University of the Witwatersrand Johannesburg 2050 South Africa Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel

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Lithium/Sodium-Ion Batteries: In Situ, Atomic-Resolution Observation of Lithiation and Sodiation of WS2Nanoflakes: Implications for Lithium-Ion and Sodium-Ion Batteries (Small 24/2021)

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Small 2021年第24期17卷

作者： Yaobin Xu Ke Wang Zhenpeng Yao Joohoon Kang David Lam Dan Yang Wei Ai Chris Wolverton Mark C. Hersam Ying Huang Wei Huang Vinayak P. Dravid Jinsong Wu Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA NUANCE Center Northwestern University Evanston IL 60208 USA Frontiers Science Center for Flexible Electronics (FSCFE) Institute of Flexible Electronics (IFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA Department of Chemistry and Computer Science University of Toronto Toronto Ontario Canada School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an 710072 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Nanostructure Research Centre Wuhan University of Technology 122 Luoshi Road Wuhan Hubei 430070 China

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bFGF and Poly‐RGD Cooperatively Establish Biointerface for Stem Cell Adhesion, Proliferation, and Differentiation

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advanced materials Interfaces 2018年第7期5卷

作者： Nan Jiang Yong Wang Yi‐Xia Yin Rui‐Peng Wei Guo‐Liang Ying Bin‐Bin Li Tong Qiu Patrick van Rijn Ge Tian Qiong‐Jiao Yan Hong‐Lian Dai Henk J. Busscher Shi‐Pu Li Ali K. Yetisen Xiao‐Yu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA Brigham and Women's Hospital Harvard Medical School Cambridge MA 02139 USA School of Materials Science and Engineering Wuhan Institute of Technology Wuhan 430205 China Department of Biomedical Engineering‐FB4 University of Groningen/University Medical Center Groningen Ant. Deusinglaan 1 9713 AV Groningen The Netherlands School of Chemical Engineering University of Birmingham Edgbaston Birmingham B15 2TT UK

Biointerface design is widely used to functionalize biomaterials with controllable physicochemical properties. Functionalized biointerface provides a versatile platform to connect biological entities and nonbiogenic materials. Existing nanofabrication approaches to create such a nanostructured biointerface involve in low stability of the functionalized nanolayer and simple functionalities that limit its applicability. Here, a stable nanolayered synthetic polypeptide (poly[LA‐ co ‐(Glc‐alt‐Lys)] and modified with arginine‐glycine‐aspartic acid, PRGD)/basic fibroblast growth factor (bFGF) biointerface is created via structural matching, charge interaction, and hydrogen bonding. The cooperative effect of the PRGD/bFGF biointerface shows multiple functionalities in promoting stem cell adhesion by 33% increase in cell adhesion to poly( d,l ‐lactic acid) substrate as compared to experiments on bare substrate as a control. Moreover, the biointerface enhances proliferation by 40% in cell density, potential differentiation by 62%, and gene expression by 40 and 80% respectively as compared to the control samples. The fabricated biointerface may have applications in nerve regeneration, tissue repair, and stem cell‐based therapy.

关键词： biointerface cell proliferation cooperative effect growth factors stem cell differentiation

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