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SSRN 2023年

作者： Yi, Jiaojiao Wang, Yihao Liu, Lisha Yang, Gongji Xu, Mingqin Ge, Honghao Kong, Lingti Tang, Chunguang Laboratory of Advanced Multicomponent Materials School of Mechanical Engineering Jiangsu University of Technology Changzhou213001 China School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing Nanjing210094 China Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion School of Materials Science and Engineering Hunan University of Science and Technology Xiangtan411201 China Institute of Laser Advanced Manufacturing Zhejiang University of Technology Hangzhou310014 China State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai200240 China Research School of Chemistry The Australian National University Canberra020027 Australia

Exceptional ductility has been a long-sought-after property of metallic glasses, and cryogenic thermal cycling rejuvenation has been actively explored to enhance the plasticity of metallic *** tuning the holding time and number of cycles of cryogenic thermal cycling processing, we here report a (Zr0.8125Cu0.1875)79Ni10Al10Nb1 metallic glass of peak rejuvenation with the plasticity of an order of magnitude higher than that of the as-cast glass, without sacrificing its strength. Characterizations indicate that the loose atomic packing of the metallic glass of peak rejuvenation facilitates the generation and proliferation of shear bands in the early stage of plastic deformation, and the resultant dense shear bands tend to be deflected due to their interaction with each other and/or structural inhomogeneity in the matrix, hindering their rapid propagation and in turn increasing the *** combination of high relaxation enthalpy and high plasticity obtained here is outstanding from the previous rejuvenated metallic glasses which have either high relaxation enthalpy or high plasticity, while never both. This work identifies an alloy system with very high efficiency in plasticity improvement through cryogenic thermal cycling rejuvenation and represents a promising guide for improving the plasticity of metallic glasses. © 2023, The Authors. All rights reserved.

关键词： Metallic glass

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Solid-gas Phase Preparation Method for Porous Molybdenum Trioxide

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Journal of Wuhan University of technology(materials Science) 2020年第3期35卷 495-500页

作者： REN Jie MU Shichun YANG Daohe LI Xuejing DONG Shengqi ZHU Junwei LIN Xianghai DONG Xuebin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Wuhan Construction Engineering Safety Supervision Station Wuhan 430015China School of Civil Engineering Wuhan Univer-sityWuhan 430072China

A novel solid-gas reaction preparation technology was used to adjust the composition and microstructure of the composite crystal materials by changing the preparation parameters. Compared with the commonly used sol-gel method, acid base neutralization sedimentation method, hydrothermal method, and gas phase deposition method, the technology was relatively simplified and the elemental composition was controllable, without the use of openings and additives. A kind of multi-element composite porous metal oxide was obtained by pre-intercalation and decarburization. In order to increase the porosity of MoO3 material and promote the adsorption and diffusion of reactant molecules, the microstructure of MoO3 was studied. The preparation process of porous molybdenum trioxide by solid gas combination process was discussed, which provides an innovative idea for the design and preparation of new materials with a large specific surface area and other desirable properties.

关键词： molybdenum trioxide porous structure solid-gas phase method synthetic

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Galvanic replacement reaction for in situ fabrication of litchi-shaped heterogeneous liquid metal-Au nano-composite for radio-photothermal cancer therapy

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Bioactive materials 2021年第3期6卷 602-612页

作者： Zhenhu Guo Jingsong Lu Dan Wang Wensheng Xie Yongjie Chi Jianzhong Xu Nonaka Takuya Junxin Zhang Wanling Xu Fei Gao Hong Wu Lingyun Zhao State Key Laboratory of Powder Metallurgy Powder Metallurgy Research InstituteCentral South UniversityChangshaHunan410083China Key Laboratory of Advanced Materials Ministry of Education of ChinaSchool of Materials Science and EngineeringTsinghua UniversityBeijing100084China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China Research Center of Magnetic and Electronic Materials College of Materials Science and EngineeringZhejiang University of TechnologyHangzhouZhejiang310014China Department of Nanoengineering Chemical Engineering Programand Moores Cancer CenterUniversity of California San DiegoLa JollaCA92093United States The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing100084China School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing100083China Shaanxi University of Chinese Medicine Xi'anShanxi712046China

With tremendous research advances in biomedical application,liquid metals(LM)also offer fantastic chemistry for synthesis of novel ***,as a pioneering trial,litchi-shaped heterogeneous eutectic gallium indium-Au nanoparticles(EGaIn-Au NPs),served as effective radiosensitizer and photothermal agent for radio-photothermal cancer therapy,have been successfully prepared using in situ interfacial galvanic replacement *** enhanced photothermal conversion efficiency and boosted radio-sensitization effect could be achieved with the reduction of Au nanodots onto the eutectic gallium indium(EGaIn)NPs *** importantly,the growth of tumor could be effectively inhibited under the combined radio-photothermal therapy mediated by EGaIn-Au *** by this approach,in situ interfacial galvanic replacement reaction may open a novel strategy to fabricate LM-based nano-composite with advanced multi-functionalities.

关键词： Au nanodots Gallium Galvanic replacement reaction Indium Radio-photothermal therapy

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Directly-Regenerated Licoo2 with a Superb Cycling Stability at 4.6 V

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SSRN 2023年

作者： Ji, Yongsheng Yang, Dan Pan, Yujun Liu, Zhikang Zhu, Zhenglu Qi, Xiaoqun Ma, Mingyuan Jiang, Ruining Yang, Fengyi Shi, Kaiyuan Qie, Long Huang, Yunhui Institute of New Energy for Vehicles School of Materials Science and Engineering Tongji University Shanghai201804 China State Key Laboratory of Material Processing and Die & Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China School of Materials Science and Engineering Sun Yat-Sen University Guangzhou510275 China

The exponential growth of "3C" (computer, communication, and consumer electronics) market generates an ever-increasing demand on recycling materials from the end-of-life LiCoO2 (LCO) batteries with ecological and efficient methods. Herein we present a direct and scalable approach to recycle the degraded LCO by healing and stabilizing their damaged structure via solid reactions. The as-proposed approach constructs a protective layer onto the regenerated LCO particles to suppress the O3 to H1-3 phase transition at 4.55 V. Benefiting from the unique design, superb electrochemical performance was achieved for the regenerated LCO, exhibiting a high specific capacity retention of 85.9% after 100 cycles with a charging cutoff voltage of 4.6 V and a superb rate capability, which are even superior to those of the pristine commercial LCO. In addition, compared with the LCO production with raw chemicals, the as-proposed healing-stabilizing strategy reduces the total energy consumption by 68.5%, bringing noteworthy economic and environmental benefits. This work provides not only new understandings to stabilize LCO at high voltage, but also a practical solution to the closed-loop development of LCO batteries. © 2023, The Authors. All rights reserved.

关键词： Lithium compounds

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Ru-modified NiO electrocatalysts for HER: Lower energy barriers and prolonged stability

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Chinese Chemical Letters 2025年

作者： Li Luo Xiaohong Cheng Qi Wu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 China College of Physical Science and Technology Central China Normal University Wuhan 430079 China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang 441053 China

The hydrogen evolution reaction (HER) is a key process in electrocatalytic water splitting for hydrogen production, yet it is often limited by sluggish H*-OH adsorption and H* binding kinetics. We obtained Ru-modified NiO nanoparticles (Ru-NiO/NF) with enhanced HER properties by substituting Ruthenium (Ru) for Ni atoms in the NiO (200) crystalline facets on nickel foam by a one-step electrodeposition technique. This novel catalyst exhibits a significantly reduced *H-OH adsorption energy and improved kinetics, with an overpotential of only 60 mV at 10 mA/cm 2 and a Tafel slope of 26.19 mV/dec. The Ru-NiO/NF maintains its activity for over 115 h, outperforming NiO/NF by reducing the overpotential by 177 mV. DFT calculations confirm that the addition of Ru to NiO enhances the HER kinetics by modifying the electronic structure, optimizing the surface chemistry, stabilizing the intermediates, lowering the energy barriers, and facilitating efficient charge transfer through a robust three-dimensional structure, resulting in a change in the rate-limiting step and a significant reduction in the Gibbs free energy. This study presents a highly efficient HER catalyst and offers insights into designing advanced NiO-based electrocatalysts by reducing reaction energy barriers.

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Enhanced Grain Boundary Conductivity of Gd and Sc Co-Doping Bazro3 Proton Conductor for Proton Ceramic Fuel Cell

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SSRN 2023年

作者： Qin, Guobin Bao, Jinxiao Gao, Jianquan Ruan, Fei An, Shengli Wang, Zhenbo Li, Li Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou014010 China MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering State Key Lab of Urban Water Resource and Environment Harbin Institute of Technology No.92 West-Da Zhi Street Harbin150001 China School of Metallurgy Northeastern University Shenyang110819 China

Applicability of BaZrO3 proton conductor as electrolytes in fuel cells and electrolysis cells is limited due to lower grain boundary conductivity and serious sintering activity. Herein, we report the enhancement of grain boundary conductivity and sintering performance of BaZrO3 proton conductor by Sc and Gd co-doping at B site. Combining experimental characterization and theoretical calculations, we found that the incorporation of Sc can effectively promote the generation of proton defects and lower the proton migration energy barrier. Meanwhile, the clustering of positively charged oxygen vacancy to acceptors can suppress proton trapping, thus positively affecting the long-range proton transport and effectively improving bulk conductivity. In addition, the space charge quantification by Mott-Schottky approximation confirms that Sc and Gd co-doping is significantly reduce the Schottky barrier height and the width of space charge layer, resulting in lower proton depletion and higher grain boundary conductivity. Benefiting from these two positive effects, these electrolytes show the highest proton conductivity of 2.99×10-3~3.63×10-2 S cm-1 in the temperature range of 250~750 °C. This indicates that co-doping of Gd and Sc is one of the effective and feasible strategy to improve the sinterability and conductivity of BaZrO3-based proton conductors. © 2023, The Authors. All rights reserved.

关键词： Perovskite

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Polyethylene Terephthalate Ammonia Hydrolysate Greatly Increased Bacterial Cellulose Production

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SSRN 2022年

作者： Sun, Su Ullah, Mati Wang, Quan Zhang, Yanbo Chen, Li Ullah, Muhammad Wajid Zhou, Jiangang State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China College of Life Science and Technology Huazhong University of Science and Techn ology Wuhan430074 China Central China Normal University Library Wuhan430079 China Biofuels Institute School of the Environment and Safety Engineering Jiangsu University Zhenjiang212013 China

A major challenge to large-scale production and utilization of bacterial cellulose (BC) for various applications is its low yield and productivity by bacterial cells and the high cost of feedstock. A supplementation of the classical expensive Hestrin and Schramm (HS) medium with 1% polyethylene terephthalate ammonia hydrolysate (PETAH) resulted in as high as 215% yield. Although the physicochemical properties of BC were not significantly influenced, the BC produced in PETAH-supplemented HS medium showed a lower degree of crystallinity, and higher surface area, which showed 1.66 times higher adsorption capacity for tetracycline than BC produced in HS medium. The PETAH-supplemented HS medium respectively enhanced the activity of α-UDP-glucose pyrophosphorylase and α-phosphoglucomutase by 30.63% and 135.24% and decreased the activity of pyruvate kinase and phosphofructokinase by 40.34% and 52.63%. The results of this study provide insights into the activation mechanism of Taonella mepensis by PETAH supplementation for high productivity of BC. © 2022, The Authors. All rights reserved.

关键词： Productivity

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Green N1 Additive Modified Perovskite Precursor Enables Effective Manufacturing of Large-Area Solar Cell Modules with High Efficiency and Stability

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SSRN 2023年

作者： Zang, Yue Shao, Tianxiang Jiao, Chuanjia Zhou, Peng Li, Wangnan Cheng, Jiahao Yang, Gaoyuan Tu, Yibo Ye, Jingchuan Li, Guodong Chu, Liang Lu, Shaojian Liang, Guijie Liang, Ying Wang, Jingyang Zhong, Zhicheng Hu, Run Yan, Wensheng Institute of Carbon Neutrality and New Energy School of Electronics and Information Hangzhou Dianzi University Hangzhou310018 China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang441053 China Hubei Longzhong laboratory Xiangyang441000 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Hubei Institute of Aerospace Chemotechnology Xiangyang441003 China School of Energy and Power Engineering Huazhong University of Science and Technology Wuhan430074 China

Perovskite solar cells (PSCs) have been continuously breaking the solar photoelectric power conversion efficiency (PCE) record, while two long-standing challenges remain formidable on the practical commercialization path of PSCs, i.e. effective large-area manufacturing and high device operational stability. Here, we report a green additive of N-methyl-2-piperidone (N1) to modify the perovskite precursor, enabling the one-step mass manufacturing of high-quality large-area perovskite films with enhanced PCE and operational stability. The results show that due to the stronger complexation ability of N1 additive with PbI2, the generated PbI2-N1 complex can effectively prevent the preferential nucleation and realize lead halide-framework template-assistant crystallization reaction with organic cation in the one-step solution preparation of perovskite (FAPbI3)0.95(MAPbBr3)0.05 thin films, which result in the uniform grain size and smooth, dense film quality. Therefore, the PSCs device with small active area of 0.09 cm2 exhibits an efficiency of 22.2%, which is further improved to 23.2% by passivating the perovskite interface using PEAI. Moreover, highly-efficient slot-die printed 5×5 cm2 PSC module has been obtained with a champion PCE of 21% and improved operational stability over 1000 h. This work demonstrated a new strategy to realize high-quality large-scale perovskite films for solution-processed PSC modules, and may be further improved and extended to other kinds of PSCs and perovskite light-emitting diodes and detectors. © 2023, The Authors. All rights reserved.

关键词： Nucleation

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双功能Cu-TiO2/CuO光催化剂用于大规模协同处理含有机污染物和重金属离子的废水

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中国科学：材料科学（英文版） 2023年第1期66卷 179-192页

作者：丁杨 Soumyajit Maitra 王春花郑润田 Tarek Barakat Subhasis Roy 陈丽华苏宝连 Laboratory of Inorganic Materials Chemistry (CMI) University of Namur Namur Belgium Namur Institute of Structured Matter (NISM) University of Namur Namur Belgium Department of Chemical Engineering University of Calcutta Kolkata West Bengal India Department of Chemistry KU Leuven Leuven Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

大多数所制备的光催化剂通常只用于单一地降解有机污染物或还原Cr(Ⅵ)的光催化.然而,无机和有机污染物通常共存于工业污水中.同时消除混合的无机和有机污染物仍然存在着巨大的挑战.在本文中,我们通过原位掺杂和异质结工程策略,制备出了... 详细信息

大多数所制备的光催化剂通常只用于单一地降解有机污染物或还原Cr(Ⅵ)的光催化.然而,无机和有机污染物通常共存于工业污水中.同时消除混合的无机和有机污染物仍然存在着巨大的挑战.在本文中,我们通过原位掺杂和异质结工程策略,制备出了新型的双功能Cu-TiO2/CuO光催化剂用于大规模高效协同光催化消除废水中的有机污染物和过渡金属离子.具体而言,这种双功能光催化剂在RhB和Cr(Ⅵ)共存溶液中的光催化RhB降解率和Cr(Ⅵ)还原率分别是在单一RhB或Cr(Ⅵ)污染物溶液中对应值的2.35和3.84倍.光催化染料分子降解和Cr(Ⅵ)还原之间存在显著增强的协同效应.此外,该双功能光催化剂在大规模光催化消除混合污染物方面也表现出较好的活性和稳定性.理论计算表明,铜掺杂和异质结工程促进了高效的光吸收、增高的载流子密度以及快速的光生载流子转移,从而产生高效的协同光催化作用.这种双功能光催化剂的概念为大规模工业废水处理和净化开辟了新途径.

关键词： bi-functional photocatalysts in-situ Cu doping TiO_2 heterostructure synergistic effect

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Extended conjugation-induced π electron redistribution for stabilizing organic anodes in aqueous ammonium ion batteries

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Journal of Energy Storage 2025年 130卷

作者： Xinlei Tang Haode Zhang Sensen Yu Shan Hu Wen Chen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 PR China

Organic molecules have attracted significant attention as potential anode materials for aqueous ammonium-ion batteries (AAIBs) due to their tunable structure, rich active sites, and abundant resources. However, their practical applications are hindered by structural instability and high solubility. Herein, we design an extended conjugated molecule, benzo[ a ]benzo[7,8]quinoxalino[2,3- i ]phenazine-8,17-dione (TABQ-NQ), by incorporating phenyl groups into the 5,7,12,14-tetraaza-6,13-pentacenequinone (TAPQ) structure. The strengthened intermolecular interactions arising from the extended conjugation contribute to the improved structural integrity of TABQ-NQ. Furthermore, the intramolecular charge redistribution facilitated by the extended conjugation enhances the binding affinity between TABQ-NQ and NH 4 + while reducing interactions of TABQ-NQ with H 2 O, thereby stabilizing discharge intermediates and preventing further dissolution. As a result, TABQ-NQ exhibits reduced solubility, improved stability, and superior electrochemical performance. The TABQ-NQ anode demonstrates a high initial specific capacity of 190 mAh g −1 , with a capacity of 146 mAh g −1 at 0.2 A g −1 after over 650 cycles, corresponding to the capacity retention of 76.8 %, and maintains an initial capacity of 127.5 mAh g −1 at 2 A g −1 . Ex-situ characterizations further reveal the low solubility and high redox reversibility of TABQ-NQ. This work provides new insights into the extension of conjugated structures in organic molecules and offers valuable guidance for the development of AAIBs research.

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