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Chinese Chemical Letters 2020年第8期31卷 2109-2114页

作者： Yueli Liu Binghua Sang Haoran Wang Zijing Wu Yuxuan Wang Ziwei Wang Zhuoyin Peng Wen Chen State Key Laboratory of Silicate Materials for Architectures School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China The Key Laboratory of Efficient&Clean Energy Utilization School of Energy and Power EngineeringChangsha University of Science and TechnologyChangsha 410111China

In the work,rGO nanosheet is synthesized using the typical Hummer’s method,then Cu12Sb4 S13 quantum dots@rGO composites are prepared by solvent thermal method,and Cu12Sb4 S13 quantum dots with the average size of 5 nm are densely distributed on the surface of rGO ***3 gas response of Cu12Sb4 S13quantum dots@rGO nanosheet composites at room te mperature of 25℃is enhanced compared with the pure Cu12Sb4 S13 quantum dots and rGO nanosheet,and the composites possess an excellent stability during the humidity range of 45%-80%with a low detection limit of 1 ppm,which is related with the intrinsic hydrophobicity characteristic of Cu12Sb4 S13 quantum *** also proves that Cu12Sb4 S13quantum dots@rGO nanosheet composites have a quite high selectivity towards ammonia compared with ethanol,methanol,acetone,toluene,hydrogen sulfide and nitrogen dioxide at room *** gas sensing mechanism of the composites is discussed primarily.

关键词： Cu12Sb4S13 quantum dots@rGO nanosheet Composites NH3 Room temperature Gas response

Preparation and Properties of Fe-Based Amorphous Composite Coating on the Surface of Degradable Magnesium Alloy

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SSRN 2024年

作者： Yuan, Zizhou Liu, Yaxuan Zhang, Xiangyun Huang, Danqiang School of Materials Science and Engineering Lanzhou University of Technology Gansu Lanzhou730050 China State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology Gansu Lanzhou730050 China

Fe-based amorphous composite coatings containing different proportions of hydroxyapatite were prepared on the surface of ZK60A magnesium alloy by high-velocity oxygen-fuel (HVOF) spraying. The microstructure, microhardness, and wettability of the coatings were systematically investigated to obtain a composite coating with optimum properties. The evolutionary behavior of the corrosion products of each coating at different time stages was analyzed by immersion experiments, and the degradation rate was calculated by counting the mass loss. The degradation rate of the optimal composite coating (0.0468 mm/a) is lower than the degradation rate of the pure Fe-based amorphous coating (0.0936 mm/a). Electrochemical tests and in vitro cell culture experiments demonstrated that the Fe-based amorphous composite coatings exhibited better corrosion resistance and biocompatibility compared to pure Fe-based amorphous coatings in simulated body fluids. These results provide some insights into the development of Fe-based amorphous composite coatings for potential biomedical applications. © 2024, The Authors. All rights reserved.

关键词： Corrosion resistance

Correction to: Durable Fe3O4/PPy Particle Flow Spun Textile for Electromagnetic Interference Shielding and Joule Heating (advanced Fiber materials, (2025), 7, 2, (513-527), 10.1007/s42765-024-00498-2)

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advanced Fiber materials 2025年 1-1页

作者： Liu, Jiaxin Qi, Shuo Wang, Hongshan Fu, Chiyu Xu, Weilin Su, Bin Tang, Wenyang Xia, Zhigang State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Textile Science and Engineering Industry Research and Development Center of Functional Materials and Textile New Technology Textile Industry Key Laboratory of Yarn and Its Functionalization Wuhan Textile University Hubei Wuhan430200 China State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China National Local Joint Engineering Laboratory of Resin-Based Structure and Functional Material Technology Hubei Xiaogan432100 China

In this article the first affiliation details for Jiaxin Liu were incorrectly given as 'state key laboratory of New Textile materials and advanced processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, Hubei, People’s Republic of China' but should have been 'state key laboratory of New Textile materials and advanced processing Technologies, School of Textile Science and Engineering, Industry Research and Development Center of Functional materials and Textile New technology, Textile Industry key laboratory of Yarn and Its Functionalization, Wuhan Textile University, Wuhan, 430200, Hubei, People’s Republic of China'. The original article has been corrected. © Donghua University, Shanghai, China 2025.

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Amino-Functionalized and Na+ Pre-Intercalated Three Dimensional Ti3c2tx Film Aerogel with Excellent Electrochemical Performances for Supercapacitor

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SSRN 2024年

作者： Guo, Xiaohui Jin, Xinhui Mo, Dejie Feng, Lirong Wang, Dong Su, Baolian Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education The College of Chemistry and Materials Science Northwest University Xi’an710069 China Department of inorganic chemistry University of Namur 61 rue de Bruxelles NamurB-5000 Belgium Xinjiang University China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing China

Precise modulation of the pore structure and modification of the surface groups (-NH2) of MXene aerogels by the solid foaming method in combination with Na+ pre-intercalation can significantly increase the layer spacing and change the electronic structure of MXene, thereby significantly optimizing its electrochemical performance. The three dimensional (3D) network structure provides numerous active sites on the surface of MXene and provides more ion transfer pathways, and the large layer spacing allows electrolyte ions fast transport, and the surface groups provide more active sites for the pseudocapacitive reaction. As a result, the prepared Na-Ti3C2Tx film aerogel delivers a high mass specific capacity of 560 F g-1 and excellent cycling performance of 94.5% capacity retention after 12,000 cycles in 0.5 M H2SO4. In addition, the flexible all-solid-state supercapacitor (ASC) composed of MXene film electrodes has excellent specific capacitance ~ 277 F g-1 and high energy density ~ 52.8 Wh kg-1 at 1600 W kg-1. Therefore, this work not only proposes a feasible synthetic method that can precisely regulate the pore structure and surface features of film aerogels, but also demonstrates the broad application prospects of aerogel materials in wearable power devices. © 2024, The Authors. All rights reserved.

关键词： Supercapacitor

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电场可逆调控二维单层氧化物磁电性能研究

Science Bulletin 2023年第15期68卷 1632-1639,M0004页

作者：王国鹏胡涛熊奕敏刘学沈胜春王建林车梦倩崔璋璋张莹莹杨鲁懿李正操陆亚林田明亮 School of Physics and Optoelectronics Engineering Anhui UniversityHefei 230601China Hefei National Laboratory Hefei 230028China Information Materials and Intelligent Sensing Laboratory of Anhui Province Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Department of Physics University of Science and Technology of ChinaHefei 230026China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Anhui Laboratory of Advanced Photon Science and Technology University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Low Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China State Key Laboratory for New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

具有原子层厚度的氧化物磁性材料拥有将二维磁性应用到下一代自旋电子学新兴领域的巨大潜力,引起了研究者的广泛关注.因此,实现二维单层氧化物磁、电性能的磁场和电场调控,为未来低功耗自旋电子器件提供了广阔应用前景.然而,电场调控二... 详细信息

具有原子层厚度的氧化物磁性材料拥有将二维磁性应用到下一代自旋电子学新兴领域的巨大潜力,引起了研究者的广泛关注.因此,实现二维单层氧化物磁、电性能的磁场和电场调控,为未来低功耗自旋电子器件提供了广阔应用前景.然而,电场调控二维单层氧化物磁性报道很少.本工作利用离子液体门电压进行质子掺杂,实现了对二维单层氧化物(SrRuO_(3))_(1)/(SrTiO_(3))_(N)(N=1,3)磁、电性能的电场可逆调控.随着质子掺杂浓度提高,在(SrRuO_(3))_(1)/(SrTiO_(3))_(1)中观察到了从铁磁金属到反铁磁绝缘态相变,并伴随着磁各向异性的转变.理论分析表明,质子掺杂引起的能带结构改变是结构和磁、电性能相变的主要原因.同时,SrTiO_(3)层起到质子筛作用,在质子的演化过程中扮演重要角色.该研究通过电场调控二维单层氧化物的结构和物性,为实现材料的多功能性提供了重要思路,同时也为实现低功耗功能器件提供了应用潜力.

关键词： Electric-field control 2D oxide monolayer magnets Magnetic transition Proton sieve

In-Situ Transformation and Synergistic Electrocatalysis of Asymmetric Threefold Hollow Sites in Rosebud-Like Ternary Metal Diselenide

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SSRN 2024年

作者： Wang, Shihao Liao, Lin Wu, Jinsong Tang, Haolin Zhang, Haining State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan430070 China National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory Guangdong Foshan528200 China International School of Materials Science and Engineering School of Materials and Microelectronics Wuhan University of Technology Hubei Wuhan430070 China Nanostructure Research Centre Wuhan University of Technology Hubei Wuhan430070 China Hubei Key Laboratory of Fuel Cell Wuhan University of Technology Hubei Wuhan430070 China

Electrochemical dynamic reconstruction substantially optimizes the catalytic properties of transition-metal-based precatalysts for the multi-electron oxygen evolution reaction (OER) by altering the surface structure, exposing more active sites, improving electron/ion transport, and enhancing stability. This research provides a comprehensive understanding of the in-situ transformation manner of a rosebud-like ternary metal diselenide precatalyst (Ni0.8Fe0.2Co0.1Se2) and the synergistic electrocatalytic mechanism of catalytic active centers through in-situ and ex-situ characterization along with DFT calculations. Benefiting from the unique morphology and abundant nanoscale planar defects within the conductive Ni0.8Fe0.2Co0.1Se2 core and the in-situ formed catalytically active (Fe, Co)-doped γ-NiOOH shell, the reconstructed catalyst achieves rapid electron/ion transport and copious active site exposure. Accordingly, the Ni0.8Fe0.2Co0.1Se2 catalyst only requires overpotentials of 101 mV and 233 mV to achieve current densities of 10 mA cm−2 and 100 mA cm−2, respectively. The overall water-splitting cell using Ni0.8Fe0.2Co0.1Se2 anode delivers current densities of 10 and 100 mA cm−2 at low cell voltages of 1.41 and 1.56 V, respectively. Furthermore, the cell demonstrates exceptional durability of 400 h at an industrial-level current density. This work sheds light on the development of efficient transition-metal-based precatalysts for OER. © 2024, The Authors. All rights reserved.

关键词： Iron compounds

Effect of Plastic Layer Thickness on the Tensile Behaviors of TiBw/Ti)-Ti3Al Micro-Laminated Composites by Diffusion Bonding

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SSRN 2024年

作者： Qin, Shaohua Zhang, Shuai Zhang, Shuye Wang, Dongjun Jiang, Jufu Yue, Xin Xu, Zhiwu He, Peng School of Materials Science and Engineering Harbin Institute of Technology Harbin150001 China National Key Laboratory of Precision Welding Joining of Materials and Structures Harbin Institute of Technology Harbin150001 China National Key Laboratory of Precision Hot Processing Metal Harbin Institute of Technology Harbin150001 China State Key Laboratory of Advanced Welding and Joining China

TiBw/Ti)-Ti3Al micro-laminated composites containing a constant thickness of 300 μm interspersed with varying thicknesses of (TiBw/Ti) layers ranging from 100 μm to 500 μm were meticulously devised and fabricated through diffusion bonding. The interfaces between these layers exhibit robust interfacial bonding. Tensile assessments elucidate a gradual rise in both strength and tensile elongation as the thickness of the (TiBw/Ti) layer increases. Notably, the micro-laminated composites featuring thicker (TiBw/Ti) layers manifest gradient fracture characteristics: ductile fracture within the (TiBw/Ti) layer, brittle crystalline fracture within the Ti3Al layer, and quasi-cleavage fracture in the external portion of the Ti3Al layer proximate to the interface. The outcomes of tensile fracture examinations underscore the pivotal role of the plastic layer (TiBw/Ti layer) thickness in augmenting the strength and plasticity of these micro-laminated composites. © 2024, The Authors. All rights reserved.

关键词： Binary alloys

Enhanced the Impact Resistance by Gradient Face-Sheet Design of a Sandwich Structure

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SSRN 2023年

作者： Wei, Jing Luo, Guoqiang Liu, Ao Wei, Qinqin Xia, Zhilin Zhang, Ruizhi Shen, Qiang State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China National Key Laboratory of Shock Wave and Detonation Physics Institute of Fluid Physics China Academy of Engineering Physics Mianyang621900 China

Sandwich structure has been designed to reduce the impact damage of the stress waves. However, the existing work focuses on the optimization of sandwich cores while the important face-sheet structure is seldom improved. Here, we used the impedance matching theory to design a negative gradient face-sheet sandwich structure with excellent stress wave attenuation performance. Owing to stress wave attenuation form a high impedance to a low one, the negative gradient face-sheet sandwich structure shows a low peak stress of 5.51 MPa, and the average transmission peak stress is 2.69 MPa. The gradient face-sheet structure changes the compressive deformation behavior;thus, the energy absorption performance of the negative gradient face-sheet sandwich structure increases to be 1311.8 KJ/m3 and the specific energy absorption reaches 1072 J/kg. Finite-element methods further demonstrate the overall sandwich structures can be enhanced through alleviating the failure of sandwich core by a gradient face-sheet structure. This work provides a paradigm for the design of sandwich structures with high energy absorption performance. © 2023, The Authors. All rights reserved.

关键词： Energy absorption

石墨Gibbs表面自由能对锂离子电池传统负极浆初始黏度和稳定性的影响

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Journal of Central South University 2023年第3期30卷 665-676页

作者：周奇文博张佳丽刘锋欧阳晓平梁伊丽吴泽轶谢志勇 State Key Laboratory of Powder Metallurgy(Central South University) Changsha 410083China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105China State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals(Kunming Institute of Precious Metals) Kunming 650106China Key Laboratory of Low Dimensional Materials and Application Technology(Xiangtan University) Ministry of EducationXiangtan 411105China School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China©Central South University 2023

负极浆料的初始黏度和稳定性对锂离子电池的生产工艺和后期性能至关重要。但是关于石墨原料的理化性质对负极浆料初始黏度和稳定性的影响尚未从根本上阐明。通过对不同粒度和比表面积的商业化石墨进行初始黏度测试,发现负极浆料的初始... 详细信息

负极浆料的初始黏度和稳定性对锂离子电池的生产工艺和后期性能至关重要。但是关于石墨原料的理化性质对负极浆料初始黏度和稳定性的影响尚未从根本上阐明。通过对不同粒度和比表面积的商业化石墨进行初始黏度测试,发现负极浆料的初始黏度与石墨的非极性Gibbs表面自由能呈正相关。同时还发现,Gibbs表面自由能极性部分和非极性部分的相对大小对负极浆料的稳定性有影响。当Gibbs表面自由能极性部分接近非极性部分时,制备的浆料具有最佳的稳定性,且静置120 h以后克容量保持稳定。有趣的是,XRD和Raman光谱表征结果显示石墨粒子的Gibbs表面自由能与缺陷之间没有直接的线性关系。本研究可为锂离子电池工业生产中石墨原料的选择提供指导。

关键词：锂离子电池 Gibbs表面自由能石墨负极浆料

Interaction between dislocations and L12 precipitates in the Al0.3CoCrFeNi high-entropy alloy during nanoscratching

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Tribology International 2025年 211卷

作者： Wang, Minggang Hua, Dongpeng Li, Jincheng Jiao, Zhichao Zhu, Longhui Xie, Mingda Zhu, Yuxuan Huang, Tiange Ye, Wenting Lin, Naiming Qian, Dan Zhou, Qing Wang, Haifeng State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical University Shaanxi Xi'an710072 China Department of Mechanical Engineering City University of Hong Kong Kowloon Hong Kong College of Materials Science and Engineering Taiyuan University of Technology Shanxi Taiyuan030024 China State-Key Laboratory for Mechanical Behavior of Material Xi'an Jiaotong University Xi'an710049 China

The Al0.3CoCrFeNi high-entropy alloy (HEA) containing L12 precipitates (Ni₃Al) has garnered significant attention due to their exceptional mechanical properties and cost-effectiveness. While the strengthening effects of L12 precipitates on mechanical performance are well-documented, their role in tribological behavior remains underexplored. This study employs molecular dynamics (MD) simulations to systematically investigate the influence of L12 precipitates on the nanoscratching behavior of Al0.3CoCrFeNi HEA. Comparing the substrate without L12 precipitates, L12 precipitates alter dislocation dynamics, reducing total dislocation length while enhancing tribological performance. Debris atoms exhibit a more uniform morphology and reduced pile-up height, leading to a lower wear rate. In addition, increasing scratch velocity and deeper scratches all intensify dislocation-precipitate interactions, promoting residual dislocations in L12 precipitates and asymmetric debris distribution. In particular, the interaction between dislocation and L12 precipitates during nanoscratching was revealed by the well-designed shear simulation. L12 precipitate exerts a delaying effect on dislocation motion rather than a pinning effect, which can improve strength while maintaining ductility. Meanwhile, the strengthening effect of L12 precipitates exhibits an overall upward trend as the dislocation cuts through multiple times, which provides potential work hardening ability. These results elucidate the dual role of L12 precipitates in enhancing both strength and wear resistance, providing critical insights for designing high-performance HEAs. © 2025 Elsevier Ltd

关键词： Strain hardening