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Recent advances and perspective in metal coordination materials-based electrode materials for potassium-ion batteries

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稀有金属（英文版） 2021年第2期40卷 448-470页

作者： Fei Wang Yong Liu Hui-Jie Wei Teng-Fei Li Xun-Hui Xiong Shi-Zhong Wei Feng-Zhang Ren Alex A.Volinsky Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science and Processing Technology School of Materials Science and Engineering Henan University of Science and Technology Luoyang 471023 China Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science and Processing Technology School of Materials Science and Engineering Henan University of Science and Technology Luoyang 471023 China National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of High-Temperature Structural and Functional Materials Henan University of Science and Technology Luoyang 471003 China Guangzhou Key Laboratory of Surface Chemistry of Energy Materials New Energy Research Institute School of Environment and Energy South China University of Technology Guangzhou 510006 China National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of High-Temperature Structural and Functional Materials Henan University of Science and Technology Luoyang 471003 China Department of Mechanical Engineering University of South Florida Tampa FL 33620 USA

Recently,to ameliorate the forthcoming energy crisis,sustainable energy conversion and storage devices have been extensively ***-ion batteries (KIBs) have aroused widespread attention in these very active research applications due to their earth abundance and similar low redox potential compared to Li-ion batteries (LIBs).It is critical to develop electrode materials with large ion diffusion channels and robust structures for long cycling performance in *** coordination materials,including metal-organic frameworks,Prussian blue,and Prussian blue analogue,as well as their composites and derivatives,are known as promising materials for high-performance KIBs due to their open frameworks,large interstitial voids,functionality and *** this review,we give an overview of the recent advances on the application of metal coordination materials in *** addition,the methods to enhance their K-ion storage properties are summarized and discussed,such as morphology engineering,doping,as well as compositing with other ***,some prospects for future research of metal coordination materials for KIBs are also proposed.

关键词： Metal-organic frameworks Prussian blue Prussian blue analogue Composites Derivatives Potassium-ion batteries

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Hot deformation and dynamic recrystallization behavior of a powder metallurgy Ti-45Al-6Nb-0.3W alloy

Material Design and Processing Communications

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Material Design and Processing Communications 2021年第5期3卷

作者： Yang, Dongye Liu, Na Gu, Xu Ma, Pan Zhang, Guoqing Sun, Jianfei State Key Laboratory of Metal Matrix Composites Shanghai University of Engineering Science Shanghai China School of Materials Science and Engineering Harbin Institute of Technology Harbin China Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical Materials Beijing China

The flow behaviors of powder metallurgy (PM) Ti-45Al-6Nb-0.3W (at.%) alloy were systematically investigated in the temperature range from1050 to 1200°Cand the strain rates from 0.001 to 0.5 s−1. The effects of the temperature and the strain rate on deformation behaviors were represented by Zener–Hollomon parameter in an exponent-type equation. Microstructural observations revealed that α2/γ lamellar colonies varied into particle α2 due to dynamic recrystallization (DRX) at high temperature during the compression. The result indicated that the strain-dependent constitutive equation could lead to a good agreement between the calculated and measured flow stresses in the elevated temperature range for the PM Ti-45Al-6Nb-0.3W alloy. Subsequently, the correlation coefficient (R) and the average absolute relative error (AARE) were introduced to verify the validity of the constitutive equation, and values of R and AARE were 0.99483 and 3.956%, respectively. © 2021 John Wiley & Sons, Ltd.

关键词： Hot isostatic pressing

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Circular Airy beam with an arbitrary conical angle beyond the paraxial approximation

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Physical Review A 2022年第4期105卷 043516-043516页

作者： Wanli Lu Huajin Chen Shiyang Liu Zhifang Lin School of Materials Science and Physics China University of Mining and Technology Xuzhou Jiangsu 221116 China School of Microelectronics and Materials Engineering Guangxi University of Science and Technology Liuzhou Guangxi 545006 China Institute of Information Optics Zhejiang Normal University Jinhua Zhejiang 321004 China State Key Laboratory of Surface Physics Key Laboratory of Micro and Nano Photonic Structures and Department of Physics Fudan University Shanghai 200433 China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China

An arbitrary conical angle is introduced to the circular Airy beam (CAB) beyond the paraxial approximation, with the possibility to demonstrate its obvious tunability for the propagation properties of the CAB. The expressions are worked out to describe the electric field based on the angular spectrum representation, where a closed-form approximation of the angular spectrum is derived by using the stationary phase method. It is found that the nonparaxiality becomes obvious for large conical angles. In particular, the field intensity at the focal point can be enhanced about 10 times with respect to the conventional CAB by simply tailoring the conical angle. Meanwhile, the longitudinal component of the field is enhanced and gradually plays a leading role as the conical angle is increased. Moreover, the longitudinal gradient of the field intensity is also enlarged for large conical angles, suggesting a stable optical trapping for microparticles, which may find many applications in optical manipulations.

关键词： Classical optics Geometrical & wave optics Light propagation, transmission & absorption Light-matter interaction Mechanical effects of light on material media Spatial profiles of optical beams

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Nanostructured Zig-Zag Γ-Mo2n Thin Films Produced by Glancing Angle Deposition for Flexible Symmetrical Solid-State Supercapacitors

SSRN

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SSRN 2022年

作者： Gao, Zecui Zhang, Tengfei Wang, Qimin Mayrhofer, Paul Heinz School of Electromechanical Engineering Guangdong University of Technology Guangzhou510006 China Institute of Materials Science and Technology Technische Universität Wien Getreidemarkt 9 Vienna1060 Austria Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education Anhui University of Technology Anhui Maanshan243000 China

The performance of electrochemical capacitors strongly depends on their accessible surface area, chemical stability, and electrical conductivity. Simple columnar and zig-zag γ-Mo2N thin-film electrodes were prepared by magnetron sputtering. The latter is obtained by glancing angle deposition (GLAD), which is known for open porous structures due to the ballistic shadowing effect. As intended, the zig-zag structured γ-Mo2N electrode presents an outstanding area capacitance of 248 mF/cm2 at a scan speed of 50 mV/s, which is 4 times higher than that of the simple columnar one. Both of them exhibit excellent cycling stability of 95% over 20,000 cycles (at 200 mV/s). The symmetrical solid-state supercapacitor prepared with the zig-zag structured γ-Mo2N thin film delivers an excellent power density of 107.1 W/cm3 at 33.8 mWh/cm3, and its volumetric capacitance is ~3.5 times higher than the simple columnar structured γ-Mo2N device. Bending tests of such solid-state γ-Mo2N supercapacitors proved their mechanical flexibility to a bending angel of even 107°. Based on these studies we can conclude that the highly porous zig-zag structured γ-Mo2N-based electrodes prepared by GLAD combine outstanding electrochemical energy storage capabilities with excellent mechanical flexibility. © 2022, The Authors. All rights reserved.

关键词： Supercapacitor

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Synthesis of Ti_2CT_x MXene as electrode materials for symmetric supercapacitor with capable volumetric capacitance

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Journal of Energy Chemistry 2019年第4期28卷 11-18页

作者： Kai Zhu Yuming Jin Fei Du Shuang Gao Zhongmin Gao Xing Meng Gang Chen Yingjin Wei Yu Gao Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Materials Science and Chemical Engineering Harbin Engineering University Key Laboratory of Physics and Technology for Advanced Batteries Ministry of Education College of Physics Jilin University State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University State Key Laboratory of Superhard Materials Jilin University

Two-dimensional(2D)metal carbides,MXene,present the promising application for the energy storage *** the MXene family,Ti_2CT_xas the lightest material,shows its unique electrochemical ***,Ti_2CT_xis synthesized by selective etching Al layer from the Ti_2Al *** the optimized HF treating condition,Ti_2CT_xdisplays high volumetric capacitance and remarkable rate ***,the Ti_2CT_x//Ti_2CT_xsymmetric supercapacitor is designed and assembled,which presents capable capacitance,outstanding rate performance and excellent cycling *** remarkable electrochemical performance is attributed to its 2D structure and high electronic *** work demonstrates the potential application of the Ti_2CT_xfor the supercapacitors and provides a template to design highperformance supercapacitors with 2D electrode materials.

关键词： Supercapacitor Two-dimensional material Ti2CTx MXene

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Enabling Large-Scale and High-Precision Fluid Simulations on Near-Term Quantum Computers

SSRN

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SSRN 2024年

作者： Chen, Zhao-Yun Ma, Teng-Yang Ye, Chuang-Chao Xu, Liang Bai, Wen Zhou, Lei Tan, Ming-Yang Zhuang, Xi-Ning Xu, Xiao-Fan Wang, Yun-Jie Sun, Tai-Ping Chen, Yong Du, Lei Guo, Liang-Liang Zhang, Hai-Feng Tao, Hao-Ran Wang, Tian-Le Yang, Xiao-Yan Zhao, Ze-An Wang, Peng Zhang, Sheng Zhao, Ren-Ze Zhang, Chi Jia, Zhi-Long Kong, Wei-Cheng Dou, Meng-Han Wang, Jun-Chao Liu, Huan-Yu Xue, Cheng Zhang, Peng-Jun-Yi Huang, Sheng-Hong Duan, Peng Wu, Yu-Chun Guo, Guo-Ping Institute of Artificial Intelligence Hefei Comprehensive National Science Center Hefei230088 China Co. Ltd. Hefei230088 China China Academy of Aerospace Aerodynamics Beijing100074 China Chinese Aeronautical Establishment Beijing100012 China Xi’an Aeronautics Computing Technique Research Institute AVIC Xi’an710000 China Department of Modern Mechanics University of Science and Technology of China Hefei230026 China CAS Key Laboratory of Quantum Information University of Science and Technology of China Hefei230026 China Laboratory for Advanced Computing and Intelligence Engineering Zhengzhou450000 China CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China Hefei230026 China

Quantum computational fluid dynamics (QCFD) offers a promising alternative to classical computational fluid dynamics (CFD) by leveraging quantum algorithms for higher efficiency. This paper introduces a comprehensive QCFD method, including an iterative method ``Iterative-QLS'' that suppresses error in quantum linear solver, and subspace method to scale the solution to larger size. We implement our method on a superconducting quantum computer, demonstrating successful simulations of steady Poiseuille flow and unsteady acoustic wave propagation. The Poiseuille flow simulation achieved a relative error of less than 0.2%, and the unsteady acoustic wave simulation solved a 5043-dimension matrix. We emphasize the utilization of quantum-classical hybrid approach in applications of near-term quantum computers. By adapting to quantum hardware constraints and offering scalable solutions for large-scale CFD problems, our method paves the way for practical applications of near-term quantum computers in computational science. © 2024, The Authors. All rights reserved.

关键词： Computational fluid dynamics

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Uniaxial Deformation Behaviors and Mechanism of Ti-6al-4v Alloy with Bi-Oriented Grains

SSRN

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SSRN 2023年

作者： Han, Shuaijie Shao, Chenwei Zhao, Shuo Lu, Yang Liu, Hanzhong Wang, Zhiqin Qu, Zhan Duan, Qiqiang Zhang, Zhenjun Zhang, Zhefeng School of Materials Science and Engineering Northeastern University Shenyang110819 China Institute of Metal Research Chinese Academy of Sciences Shenyang110016 China Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University Shenyang110136 China Dresden University of Technology Germany Shi-changxu Innovation Center for Advanced Materials China

It is of great importance to investigate the deformation and damage mechanisms of polycrystalline materials with soft crystal orientations, considering the soft grains are usually the fatigue crack initiation sites. In this study, a Ti-6Al-4V alloy fully consisted of and α (soft) grains was prepared and its uniaxial deformation behavior was investigated. Interestingly, no significant asymmetry on the tension-compression yield strength was found in this alloy with bi-grain orientations, though mechanical asymmetry was generally found in the traditional Ti alloys with strong texture. After high temperature solution treatment, the preferred bi-orientations were retained and the asymmetry degree of yield strength did not change, showing an excellent stability in texture and mechanical performance. Deformation mechanisms during tension and compression were studied and discussed. This work provides a new understanding on the deformation and damage mechanisms in the grains with soft crystal orientations, and may guide the microstructural design of Ti alloy for pursuing high mechanical and fatigue performances in the future. © 2023, The Authors. All rights reserved.

关键词： Aluminum alloys

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Grain and stoichiometry engineering for ultra-sensitive perovskite X-ray detectors

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Journal of Materials Chemistry A 2021年第45期9卷 25603-25610页

作者： Yingrui Xiao Shanshan Jia Nuo Bu Nan Li Yucheng Liu Ming Liu Zhou Yang Shengzhong (Frank) Liu 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 Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 China School of Microelectronics State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China

High sensitivity and a low detection limit are key figures-of-merit for high-energy radiation detectors. Previously, it was found that hot pressing is an effective method to fabricate large, thick compact pellets for highly sensitive X-ray detectors. Herein, we further studied the formation mechanism of a compact pellet and the impacts of the crystal size and stoichiometry of the perovskite pellet on the X-ray detection performance, which has rarely been investigated. It has been found that both heat and pressure are necessary for the formation of a compact pellet and the stoichiometry should be well controlled during the heat treatment. The impacts of temperature are two-fold: facilitating the growth of crystal grains and softening the grains. Pressure will induce the softened grains to form a compact pellet. The crystal grain size will be enlarged with the increase of temperature; however, as the temperature exceeds 150 °C, the atomic ratio of I to Pb will decrease with temperature, which will weaken the X-ray response of the pellet. Furthermore, by adjusting the I to Pb ratio by adding more CH₃NH₃I (MAI), the X-ray response will be improved, achieving a high sensitivity of 4.2 × 10⁵ μC Gy_air⁻¹ cm⁻² at a field of 6.58 V mm⁻¹. These findings provide insights into the use of grain engineering and composition engineering to design effective materials for high-performance X-ray detection.

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Antisymmetric planar Hall effect in rutile oxide films induced by the Lorentz force

arXiv

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arXiv 2023年

作者： Cui, Yongwei Li, Zhaoqing Chen, Haoran Wu, Yunzhuo Chen, Yue Pei, Ke Wu, Tong Xie, Nian Che, Renchao Qiu, Xuepeng Liu, Yi Yuan, Zhe Wu, Yizheng Department of Physics State Key Laboratory of Surface Physics Fudan University Shanghai200433 China Institute for Nanoelectronic Devices and Quantum Computing Fudan University Shanghai200433 China Interdisciplinary Center for Theoretical Physics and Information Sciences Fudan University Shanghai200433 China Center for Advanced Quantum Studies Department of Physics Beijing Normal University Beijing100875 China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative Materials Academy for Engineering & Technology Fudan University Shanghai200438 China Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai200092 China Zhejiang Laboratory Hangzhou311100 China Shanghai Research Center for Quantum Sciences Shanghai201315 China Shanghai Key Laboratory of Metasurfaces for Light Manipulation Fudan University Shanghai200433 China

The conventional Hall effect is linearly proportional to the field component or magnetization component perpendicular to a film [1]. Despite the increasing theoretical proposals on the Hall effect to the in-plane field or magnetization in various special systems induced by the Berry curvature [2-8], such an unconventional Hall effect has only been experimentally reported in Weyl semimetals and in a heterodimensional superlattice [9-12]. Here, we report an unambiguous experimental observation of the antisymmetric planar Hall effect (APHE) with respect to the in-plane magnetic field in centrosymmetric rutile RuO2 and IrO2 single-crystal films. The measured Hall resistivity is found to be linearly proportional to the component of the applied in-plane magnetic field along a particular crystal axis and to be independent of the current direction or temperature. Both the experimental observations and theoretical calculations confirm that the APHE in rutile oxide films is induced by the Lorentz force. Our findings can be generalized to ferromagnetic materials for the discovery of anomalous Hall effects and quantum anomalous Hall effects induced by in-plane magnetization. In addition to significantly expanding knowledge of the Hall effect, this work opens the door to explore new members in the Hall effect family. Copyright © 2023, The Authors. All rights reserved.

关键词： Crystal symmetry

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Influence of Hydrogen Ingress and Capture on the Mechanical Properties of Spray Formed 2195 Aluminum Alloy

SSRN

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SSRN 2024年

作者： Yang, Xiao-Xu Jiang, Yun-Ze Li, Guo-Ai Shen, Xiao-Yu Lai, Xiao-Ming Wang, Xiao-Ya Jiang, Jian-Tang Zhen, Liang School of Materials Science and Engineering Harbin Institute of Technology Harbin150001 China Jiangsu Haoran Spray Forming Alloy Co. Ltd. Zhenjiang212000 China Beijing Institute of Aeronautical Materials Beijing100095 China Beijing Engineering Research Center of Advanced Aluminum Alloys and Application Beijing100095 China Beijing Spacecrafts Co. Ltd. Beijing100094 China Shenzhen518055 China National Key Laboratory of Precision Hot Processing of Metals Harbin Institute of Technology Harbin150001 China

The current research has focused on the hydrogen capturing and its impact on the mechanical properties of spray-formed 2195 (SF2195) aluminum alloy. Microstructure characterization, thermal desorption spectra (TDS) and hydrogen trapping of characteristic microstructure, are used to investigate the generation, migration and trapping of hydrogen. The retention of moisture in the carrier gas is believed to induce high concentration of hydrogen and the amorphous Al2O3 layer within the SF2195 billet, and the local retention of carrier gas brings about pores with the Al2O3 layer on the inner wall. High concentration of hydrogen is captured in the hot-rolled alloy while around 60% of the hydrogen can be eliminated during the solution-quenching. Particles of T1 phase trap large quantity of hydrogen and the high-density dislocations developed from the pre-stretch promote the migration of hydrogen towards dispersoids and precipitates. The presence of hydrogen and Al2O3 layers contribute to the reduced plasticity of SF2195 alloy. The spreading of flattened pores can induce intensified hydrogen damage effect in local regions and thus contribute to the unusually decreased ductility along the thickness direction in the T8 aged alloy. © 2024, The Authors. All rights reserved.

关键词： Hydrogen

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