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A review of CoSb_(3)-based skutterudite thermoelectric materials

Journal of advanced Ceramics 2020年第6期9卷 647-673页

作者： Zhi-Yuan LIU Jiang-Long ZHU Xin TONG Shuo NIU Wen-Yu ZHAO School of Materials Science and Engineering Anhui University of TechnologyMaanshan 243002China Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of EducationAnhui University of TechnologyMaanshan 243002China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

The binary skutterudite CoSb_(3) is a narrow bandgap semiconductor thermoelectric(TE)material with a relatively flat band structure and excellent electrical ***,thermal conductivity is very high because of the covalent bond between Co and Sb,resulting in a very low ZT ***,researchers have been trying to reduce its thermal conductivity by the different optimization *** addition,the synergistic optimization of the electrical and thermal transport parameters is also a key to improve the ZT value of CoSb_(3) material because the electrical and thermal transport parameters of TE materials are closely related to each other by the band structure and scattering *** review summarizes the main research progress in recent years to reduce the thermal conductivity of CoSb_(3)-based materials at atomic-molecular scale and nano-mesoscopic *** also provide a simple summary of achievements made in recent studies on the non-equilibrium preparation technologies of CoSb_(3)-based materials and synergistic optimization of the electrical and thermal transport *** addition,the research progress of CoSb_(3)-based TE devices in recent years is also briefly discussed.

关键词： skutterudite CoSb_(3)-based materials lattice thermal conductivity synergistic optimization thermoelectric properties thermoelectric devices

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Binder-free electrodes for advanced potassium-ion batteries:A review

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Chinese Chemical Letters 2021年第4期32卷 1299-1308页

作者： Wencong Liu Wenyi Liu Yuqi Jiang Qiuyue Gui Deliang Ba Yuanyuan Li Jinping Liu School of Chemistry Chemical Engineering and Life ScienceState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal University.Harbin 150025China

Potassium-ion batteries(PIBs)have attracted enormous attention due to the abundance of potassium resources,low cost,fast ionic conductivity of electrolyte and relatively high operating *** great effo rts and progress,researches on PIBs are still at the initial stage,especially in the emerging field of flexible and wearable *** inevitable challenges for PIBs include low reversible capacity,unsatisfactory cycling stability and insufficient energy density,the solution to which mostly relies on designing adva nced ***-free electrodes have emerged as promising electrode architecture for *** electrodes avoid the use of insulating binders,which can be designed with various synergistic functional materials to address the aforementioned PIB issues and be endowed with flexibility/*** this review,we mainly summarize the recent progress on binde r-free electrodes for PIBs,with the focus on the methodologies,detailed strategies and functional materials for electrode *** strategy for binder-free electrodes is to assemble free-standing architecture with the help of carbon nanotubes(CNTs),graphitic fibers,and other carbon or mechanically robust materials,either alone or in *** other effective strategy is current collector substrate-assisted direct growth,including the use of carbon cloth,*** and other conductive ***,challenges and research opportunities are put forward at the end as the guidance for future development of binder-free PIB devices.

关键词： Binder-free Free-standing electrode Substrate-assisted directly grown electrode Potassium-ion battery Flexible device

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Change in elastic properties during room-temperature aging in body-centered cubic Mg-Li and Mg-Li-Al single crystals

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Journal of materials Science & technology 2022年第14期109卷 49-53页

作者： Ruxia Liu Shota Higashino Koji Hagihara Lianmeng Zhang Tohru Sekino Masakazu Tane SANKEN(The Institute of Scientific and Industrial Research) Osaka University8-1 MihogaokaIbarakiOsaka 567-0047Japan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China Graduate School of Engineering Osaka City University3-3-138 SugimotoOsaka558-8585Japan Department of Physical Science and Engineering Nagoya Institute of TechnologyNagoya 466-8555Japan

Biodegradable materials,with many advantages over conventionally used non-biodegradable materials,have received much attention owing to the elimination of the need for a secondary surgery for the removal of implants after *** with other biodegradable ceramics and/or polymers,Mg alloys are considered to be the most promising biodegradable orthopedic materials because they feature not only high specific strength and compressive yield strength but also a low Young’s modulus,which is comparable to that of human bones(10-30 GPa)[1,2].

关键词： strength aging alloys

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Surface Roughening of Sio2 Filler to Enhance the High-Frequency Dielectric and Thermal Properties of Sio2/Ptfe Composites

SSRN

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SSRN 2022年

作者： Li, Xin Zhou, Jing Shen, Jie He, Wenhao Yu, Yuanying Li, Qiangzhi Chen, Wen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China

Low dielectric constant (Εr), low dielectric loss (tan δ), and low coefficient of thermal expansion (CTE) are necessary for polytetrafluoroethylene (PTFE)-based composites in high-frequency applications. In this paper, we construct the rough structure on the SiO2 filler surface to enhance the performance of SiO2/PTFE composites through a physical interaction way without coupling agents. The microstructure, interfacial combination, dielectric, and thermal properties of SiO2/PTFE composites were systematically investigated using the rough surface SiO2 (rSiO2). The results show that rSiO2 has a superior interfacial combination with PTFE than the smooth surface SiO2 (sSiO2), and the rSiO2 is more uniformly dispersed in the PTFE matrix, these result in a decrease in tan δ and CTE of the rSiO2/PTFE composites from 2.07–4.89 × 10-3, 80 ppm/°C for sSiO2/PTFE to 1.41–3.38 × 10-3, 67 ppm/°C (10–38 GHz). Meanwhile, the rSiO2/PTFE composites are kept in the low Εr (about 2.40, at 38 GHz). The rSiO2/PTFE composites possess excellent dielectric and thermal properties, making it promising for higher frequency applications. © 2022, The Authors. All rights reserved.

关键词： Silica

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Imaging with high resolution and wide field of view based on an ultrathin microlens array

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Physical Review Applied 2024年第3期21卷 034035-034035页

作者： Xueqian Wang Chuanbao Liu Lijie Qiao Ji Zhou Yang Bai Jingbo Sun Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and Technology University of Science and Technology Beijing Beijing 100083 China School of Materials and Engineering University of Science and Technology Beijing Beijing 100083 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

An outstanding challenge for micro-optical systems is to achieve high resolution under wide-field-of-view (FOV) imaging. We propose a compact solution for high-resolution imaging under a wide-FOV with wavelength-scale thickness achromatic microlens arrays. Our strategy involves using aspherical sublenses to reduce spherical and chromatic aberration, as well as using small-diameter achromatic microlenses to decrease incident ray height. With the aid of computational reconstruction, the array of microlenses can achieve a wide-FOV comparable to that of commercially available lenses with equivalent large diameters. The microlens array shows a significant advantage in imaging resolution and an order smaller thickness compared to commercial lenses. This highly integrated microlens array, characterizing high-resolution imaging under a wide-FOV, will play an important role in applications such as autonomous driving, endoscopy, virtual reality, and augmented reality.

关键词： Imaging & optical processing Integrated optics Microstructure Lenses Metamaterials

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Effect of rotationally accelerated shot peening on the microstructure and mechanical behavior of a metastableβtitanium alloy

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Journal of materials Science & technology 2021年第16期75卷 27-38页

作者： Xinkai Ma Zhuo Chen Dongling Zhong SNLuo Lei Xiao Wenjie Lu Shanglin Zhang Key Laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China National Key Laboratory of Reactor System Design Technology Nuclear Power Institute of ChinaChengdu 610041China

Microstructural evolution and deformation mechanism of a metastableβalloy(Ti-10 V-2 Fe-3 Al)processed by rotationally accelerated shot peening(RASP)were systematically investigated with optical microscopy,X-ray diffraction,electron backscatter diffraction and transmission electron *** gradient hierarchical microstructures(gradients inα″martensite andβphase,and hierarchical twins range from the nanoscale to microscale)can be fabricated by RASP via changing the shot peening *** hardening behavior and tensile mechanical properties of gradient hierarchical microstructure were systematically *** deformation twinning systems of{112}α″and{130}<310>α″in the kinkedα″martensite were revealed during the tensile *** was found that stress-induced martensitic transformation,twinnedα″martensite and the related dynamic grain refinement contribute to hardness and work hardening *** improvement of strength and ductility of the metastableα″titanium alloy can be achieved by introducing a gradient hierarchical microstructure.

关键词： Titanium alloys Gradient hierarchical microstructure α″martensite Rotationally accelerated shot peening Mechanical behavior

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High-temperature deformation behavior and processing map of the as-cast Inconel 625 alloy

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Rare Metals 2021年第8期40卷 2083-2091页

作者： Zhi Jia Ze-Xi Gao Jin-Jin Ji De-Xue Liu Ting-Biao Guo Yu-Tian Ding School of Material Science and Engineering Lanzhou University of TechnologyLanzhou730050China Key State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of TechnologyLanzhou730050China School of Materials Engineering Lanzhou Institute of TechnologyLanzhou730050China

A short process of Inconel 625 alloy tube was developed to solve the problems of the traditional extrusion process,and particular attention was paid on the hot deformation behavior of the as-cast Inconel 625 *** hot compression experiments were performed to study the hot deformation behavior of Inconel 625 in the temperature range of 900-1200℃ and strain rate range of0.01-10.00 s^(-1) by *** hot compressed microstructure was examined to study the effects of temperature and strain rate on the microstructural characteristic by electron backscatter diffraction(EBSD).The results show that the processing maps were greatly influenced by the temperature rather than the strain *** is found that with the strain increasing,the instability zone gradually turned to the low-temperature and low strain rate area,while the range of high-temperature instability area *** optimum condition of the as-cast Inconel 625 alloy was determined as high strain rate region(temperature of1100-1200℃,strain rate of 1.00-10.00 s^(-1))with the dissipation efficiency of above *** illustrated by microstructural characteristic of EBSD analysis,the perfect dynamic recrystallization occurred and fine grain structure was obtained under this deformation conditions.

关键词： Inconel 625 Hot deformation behavior Constitutive equation Microstructure processing map

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Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-state Zinc Ion Batteries

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Nano-Micro Letters 2021年第2期13卷 232-245页

作者： Linpo Li Shuailei Liu Wencong Liu Deliang Ba Wenyi Liu Qiuyue Gui Yao Chen Zuoqi Hu Yuanyuan Li Jinping Liu School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Chemistry Chemical Engineering and Life Scienceand State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070People’s Republic of China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025People’s Republic of China

Vanadium-based cathodes have attracted great interest in aqueous zinc ion batteries(AZIBs)due to their large capacities,good rate performance and facile synthesis in large ***,their practical application is greatly hampered by vanadium dissolution issue in conventional dilute ***,taking a new potassium vanadate K0.486V2O5(KVO)cathode with large interlayer spacing(~0.95 nm)and high capacity as an example,we propose that the cycle life of vanadates can be greatly upgraded in AZIBs by regulating the concentration of ZnCl2 electrolyte,but with no need to approach“water-in-salt”*** the optimized moderate concentration of 15 m ZnCl2 electrolyte,the KVO exhibits the best cycling stability with ~95.02% capacity retention after 1400 *** further design a novel sodium carboxymethyl cellulose(CMC)-moderate concentration ZnCl2 gel electrolyte with high ionic conductivity of 10.08 mS cm^-1 for the first time and assemble a quasi-solid-state *** device is bendable with remarkable energy density(268.2 Wh kg^−1),excellent stability(97.35% after 2800 cycles),low self-discharge rate,and good environmental(temperature,pressure)suitability,and is capable of powering small *** device also exhibits good electrochemical performance with high KVO mass loading(5 and 10 mg cm^-2).Our work sheds light on the feasibility of using moderately concentrated electrolyte to address the stability issue of aqueous soluble electrode materials.

关键词： Electrolyte concentration regulation Quasi-solid-state Zn ion battery K0.486V2O5 Large interlayer spacing Cycling stability

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Boosting Fischer-Tropsch synthesis via Tuning of N Dopants in TiO_(2)@CN-Supported Ru Catalysts

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Transactions of Tianjin University 2024年第1期30卷 90-102页

作者： Xincheng Li Yunhao Liu Dejian Zhao Shuaishuai Lyu Jingwei Ye Xiaoshen Li Peipei Wu Ye Tian Yingtian Zhang Tong Ding Song Song Qingpeng Cheng Xingang Li State Key Laboratory of Chemical Engineering Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Haihe Laboratory of Sustainable Chemical TransformationsTianjin Key Laboratory of Applied Catalysis Science and EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Zhejiang Institute of Tianjin University Shaoxing 312300China Sinopec Research Institute of Petroleum Processing Co. LTDBeijing 100083China Physical Sciences and Engineering Division Advanced Membranes and Porous Materials(AMPM)CenterKing Abdullah University of Science and Technology(KAUST)23955-6900 ThuwalSaudi Arabia

Nitrogen(N)-doped carbon materials as metal catalyst supports have attracted signifi cant attention,but the eff ect of N dopants on catalytic performance remains unclear,especially for complex reaction processes such as Fischer-Tropsch synthesis(FTS).Herein,we engineered ruthenium(Ru)FTS catalysts supported on N-doped carbon overlayers on TiO_(2)*** regulating the carbonization temperatures,we successfully controlled the types and contents of N dopants to identify their impacts on metal-support interactions(MSI).Our fi ndings revealed that N dopants establish a favorable surface environment for electron transfer from the support to the Ru ***,pyridinic N demonstrates the highest electron-donating ability,followed by pyrrolic N and graphitic *** addition to realizing excellent catalytic stability,strengthening the interaction between Ru sites and N dopants increases the Ru^(0)/Ru^(δ+)ratios to enlarge the active site numbers and surface electron density of Ru species to enhance the strength of adsorbed ***,it improves the catalyst’s overall performance,encompassing intrinsic and apparent activities,as well as its ability for carbon chain ***,the as-synthesized Ru/TiO_(2)@CN-700 catalyst with abundant pyridine N dopants exhibits a superhigh C_(5+)time yield of 219.4 mol CO/(mol Ru·h)and C_(5+)selectivity of 85.5%.

关键词： Fischer-Tropsch synthesis N-doped carbon materials Ruthenium catalyst Pyridinic N Metal-N interaction

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Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

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Nano-Micro Letters 2022年第3期14卷 32-78页

作者： Jinzhang Yang Bosi Yin Ying Sun Hongge Pan Wenping Sun Baohua Jia Siwen Zhang Tianyi Ma Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province Institute of Clean Energy ChemistryCollege of ChemistryLiaoning UniversityShenyang 110036People’s Republic of China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021People’s Republic of China State Key Laboratory of Clean Energy Utilization School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Centre for Translational Atomaterials Swinburne University of TechnologyHawthornVIC 3122Australia

The rapid advance of mild aqueous zinc-ion batteries(ZIBs)is driving the development of the energy storage system *** the thorny issues of Zn anodes,mainly including dendrite growth,hydrogen evolution,and corrosion,severely reduce the performance of *** commercialize ZIBs,researchers must overcome formidable *** about mild aqueous ZIBs is still *** technical and scientific obstacles to designing Zn anodes with high stripping efficiency and long cycling life have not been ***,the performance of Zn anodes is a complex scientific issue determined by various parameters,most of which are often ignored,failing to achieve the maximum performance of the *** review proposes a comprehensive overview of existing Zn anode issues and the corresponding strategies,frontiers,and development trends to deeply comprehend the essence and inner connection of degradation mechanism and ***,the formation mechanism of dendrite growth,hydrogen evolution,corrosion,and their influence on the anode are ***,various strategies for constructing stable Zn anodes are summarized and discussed in detail from multiple *** strategies are mainly divided into interface modification,structural anode,alloying anode,intercalation anode,liquid electrolyte,non-liquid electrolyte,separator design,and other ***,research directions and prospects are put forward for Zn *** contribution highlights the latest developments and provides new insights into the advanced Zn anode for future research.

关键词： Zn-ion batteries Zn metal anode Dendrite Hydrogen evolution Corrosion

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