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The design and engineering strategies of metal tellurides for advanced metal-ion batteries

Journal of Energy Chemistry 2024年第2期89卷 579-598,I0013页

作者： Wenmiao Zhao Xiaoyuan Shi bo Liu Hiroshi Ueno Ting deng Weitao Zheng Key Laboratory of Automobile Materials of MOE School of Materials Science and EngineeringJilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchun 130012JilinChina Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal UniversityChangchun 130024JilinChina Key Laboratory of Preparation and Application of Environmental Friendly Materials(Jilin Normal University) Ministry of EducationChangchun 130103JilinChina Creative Interdisciplinary Research Division The Frontier Research Institute for Interdisciplinary Sciences(FRIS)Department of ChemistryGraduate School of ScienceTohoku UniversitySendai 980-8578Japan

Owning various crystal structures and high theoretical capacity,metal tellurides are emerging as promising electrode materials for high-performance metal-ion batteries(MBs).Since metal telluride-based MBs are quite new,fundamental issues raise regarding the energy storage mechanism and other aspects affecting electrochemical *** volume expansion,low intrinsic conductivity and slow ion diffusion kinetics jeopardize the performance of metal tellurides,so that rational design and engineering are crucial to circumvent these ***,this review provides an in-depth discussion of recent investigations and progresses of metal tellurides,beginning with a critical discussion on the energy storage mechanisms of metal tellurides in various *** the following,recent design and engineering strategies of metal tellurides,including morphology engineering,compositing,defect engineering and heterostructure construction,for high-performance MBs are *** primary focus is to present a comprehensive understanding of the structural evolution based on the mechanism and corresponding effects of dimension control,composition,electron configuration and structural complexity on the electrochemical *** closing,outlooks and prospects for future development of metal tellurides are *** work also highlights the promising directions of design and engineering strategies of metal tellurides with high performance and low cost.

关键词： Metal tellurides Metal-ion battery Energy storage mechanism Material design and engineering

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The cooperation effect of Ni and Pt in the hydrogenation of acetic acid

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Frontiers of Chemical Science and Engineering 2022年第3期16卷 397-407页

作者： deng Pan Jiahua Zhou bo Peng Shengping Wang Yujun Zhao Xinbin Ma Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyCollaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjin300072China SINOPEC Research Institute of Petroleum Processing(RIPP) Beijing100083China

The catalytic hydrogenation of carboxylic acid to alcohols is one of the important strategies for the conversion of ***,a series of Ni-doped PtSn catalysts were prepared,characterized and studied in the hydrogenation of acetic *** Ni dopant has a strong interaction with Pt,which promotes the hydrogen adsorption,providing an activated hydrogen-rich environment for the ***,the presence of Ni also improves the Pt dispersion,giving more accessible active sites for hydrogen *** cooperation of Pt and Ni significantly promotes the catalytic activity of the hydrogenation of acetic acid to *** a result,the catalyst with 0.1%Ni exhibits the best reaction activity,and its space time yield is twice as that of the PtSn/SiO2 *** provides a meaningful instruction on the catalyst design for the carboxylic acid hydrogenation.

关键词： acetic acid ethanol hydrogenation Pt Ni cooperation effect

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Microstructure and room-temperature tensile property of Ti-5.7Al-4.0Sn-3.5Zr-0.4Mo-0.4Si-0.4Nb-1.0Ta-0.05C with near equiaxed β grain fabricated by laser directed energy deposition technique

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Journal of Materials Science & Technology 2022年第6期101卷 308-320页

作者： MengCheng deng Shang Sui bo Yao Liang Ma Xin Lin Jing Chen State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design MIIT ChinaNorthwestern Polytechnical UniversityXi’an 710072China

Near-equiaxed β grain was achieved in the near-α Ti60(Ti-5.7Al-4.0Sn-3.5Zr-0.4Mo-0.4Si-0.4Nb-1.0Ta-0.05C) titanium alloy via laser directed energy deposition(LDED). The microstructural evolution along the building direction and the room-temperature tensile properties along the horizontal and vertical directions(building direction) were systematically studied through SEM and OM. EBSD and XRD were utilized to accurately demonstrate the texture of the α and β phases. The results showed that the α phase presented a low texture intensity, which was ascribed to the weak textured β grain with near-equiaxed morphology, since there are Burgers orientation relationships during the β →α transition. In addition, numerical simulation, combined with the CET curve of Ti60 alloy considering the effect of multi-composition,was utilized to elucidate the formation mechanism of the near-equiaxed β grains. Furthermore, according to the solidification theory, we proposed that the solidification temperature range ΔTfwas more accurate than the growth restriction factor Q in predicting the formation tendency of equiaxed β grain in different titanium alloys. Tensile results showed that the horizontal and vertical samples had similar strength,while the former exhibited larger elongation than the latter. The effect of the near-equiaxed β grain and the internal α phase on mechanical properties were revealed at last.

关键词： Laser directed energy deposition Near-αtitanium alloy Equiaxedβgrain Room-temperature tensile property

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Adsorptive interaction between typical VOCs and various topological zeolites:Mixture effect and mechanism

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Journal of Environmental Sciences 2024年第2期136卷 626-636页

作者： bo Yu Hua deng Yuqin Lu Tingting Pan Wenpo Shan Hong He Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Adsorption is one of the most feasible and effective methods to alleviate the volatile organic compounds(VOCs)***,the mixture effect and mechanism for competitive adsorption of VOCs on zeolites are barely *** this study,toluene,acetone,and ethyl acetate as prevalent VOCs species were removed by four potential zeolites(13X,USY,Beta,ZSM-5)in both single-and multi-component *** structure-property relationship between adsorbate-adsorbent pairs was revealed by X-ray diffraction,scanning electron microscopy,energy dispersive spectrometer,X-ray fluorescence,N_(2) adsorption and density function theory *** molecular polarity and volatility of VOCs species played key roles in adsorption and the dynamic uptakes were generally listed as follows:ethyl acetate>toluene>*** for the above VOCs mixtures,13X zeolite selectively adsorbed oxygenated VOCs rather than *** contrast,USY exhibited a preference to trap *** acetate could be readily enriched by ZSM-5 and Beta *** possible explanations and implications are discussed based on the subtle change in electron *** results obtained are vital for understanding the mixture effect of VOCs adsorption and may guide the selection of proper adsorbent for real applications.

关键词： Adsorption Zeolites VOCs Mixture effect DFT

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Valuable metals recovery from spent ternary lithium-ion battery:A review

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International Journal of Minerals,Metallurgy and Materials 2024年第12期31卷 2556-2581页

作者： Hao Liao Shengen Zhang bo Liu Xuefeng He Jixin deng Yunji Ding Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Shunde Innovation School University of Science and Technology BeijingFoshan 528399China Institute of Engineering Technology SINOPEC Catalyst Co.Ltd.Beijing 101111China Xinjiang Research Institute for Nonferrous Metals Urumqi 830009China

Ternary lithium-ion batteries(LIBs),widely used in new energy vehicles and electronic products,are known for their high en-ergy density,wide operating temperature range,and excellent cycling *** the rapid development of the battery industry,the recycling of spent ternary LIBs has become a hot topic because of their economic value and environmental *** date,a con-siderable amount of literature has reported on the recycling of spent ternary LIBs designed to provide an efficient,economical,and envir-onmentally friendly method for battery *** article examines the latest developments in various technologies for recycling spent ternary LIBs in both research and practical production,including pretreatment,pyrometallurgy,hydrometallurgy,pyro-hydrometallurgy,and direct *** for addressing challenges based on the benefits and disadvantages of each method are ***,through a comparison of the feasibility and economic benefits of various technologies,the challenges faced during battery recycling are summarized,and future development directions are proposed.

关键词： spent ternary LIBs recycling technologies valuable metals economic analysis

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A new high-pressure die casting Mg-Gd-Sm-Al alloy with high strength-ductility synergy

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Journal of Rare Earths 2024年第12期42卷 2239-2248页

作者： Shuhui Lv Youwei Cheng bo deng Tao Xu Xin Qiu Qiang Yang School of Materials Science and Engineering Changchun University of Science and Technology State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Kashui International Holdings Limited

A high-pressure die casting（HPDC） Mg-5Gd-1.5Sm-0.7Al alloy was newly developed and exhibits outstanding strength-ductility synergy, with the yield strength and the tensile elongation to fracture being approximately 200 MPa and 8.5%, respectively. This alloy has two types of a-Mg grains: coarse a1-Mg(（46 ± 18） μm) and fine a2-Mg(（9.2 ± 2.3） μm) grains, and various Al-GS（GS = Gd and Sm） particles located at grain boundaries while clear solute-atom segregation near grain boundaries with limited or free intermetallic particles. Characterizations using Cs-corrected high-angle annular dark-field scanning transmission electron microscopy（HAADF-STEM） indicate the crystal structures of Al-GS phases. After aging, dense β'precipitates and chain-shaped β''-like structures precipitated near grain boundaries while a high density of ultrafine β''-（Mg,Al）3Sm precipitates and Al-GS clusters formed in grain center. Relatively fine grains, Al-GS primary particles, solute-atom segregation near grain boundaries, and/or multiple precipitates contribute to the high strength of the studied alloy, while the multi-scale a-Mg grains,variety of intermetallic particles but discontinuous skeleton, and the multi-typed precipitated lead to its satisfactory ductility.

关键词： magnesium alloys strength-ductility synergy intermetallic phases scanning/transmission electron microscopy (STEM) precipitate rare earths

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Design,construction,and offline calibration of ARPolar prototype for SXFEL facility

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Radiation Detection Technology and Methods 2022年第2期6卷 214-226页

作者： Zipeng Liu Bangjie deng Qingmin Zhang Haixiao deng bo Liu Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China School of Nuclear Science and Technology Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China

Purpose The polarization characteristics of photoelectrons are critical for free-electron laser(FEL)*** FEL facilities have operated an eTOF-alike polarimeter based on the angular distribution of *** purpose of this paper is to introduce the design,construction and offline test of the prototype angular resolved polarimeter(ARPolar-CORE)for the Shanghai Soft X-ray Facility(SXFEL).This paper describes the overall design of this instrument,covering the main chamber,detector assemblies,and *** To validate the performance of the instrument,the detectors and electronics were tested offline and ***,based on the measured pulse shape obtained from the offline tests,a comprehensive numerical analysis is presented to evaluate the performance of the *** and conclusion The results show that the fluctuation in the electron charges is less than 0.8%under the SXFEL working conditions,corresponding to a linear polarity of 0.988±0.0175 for linearly and horizontally polarized FEL *** analysis also indicates that a 0.16 eV mean square error is fully feasible for 645 eV FEL pulses.

关键词： Free electron laser eTOF-based polarimeter Calibration Electronics

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Intelligent secure near-field communication

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Science China(Information Sciences) 2024年第9期67卷 340-341页

作者： nan ZHANG Jifa ZHANG Chengwen XING na deng nan ZHAO School of Information and Communication Engineering Dalian University of Technology School of Information and Electronics Beijing Institute of Technology

The research and development efforts for the sixth generation(6G) wireless communication are underway to fulfill the growing demands for wireless communications. 6G is expected to become the key enabler for diverse new applications and services [1]. To achieve the excellent performance, 6G will implement extremely large-scale antenna arrays(ELAAs), terahertz [2], and new types of antennas with metamaterials, leading to a paradigm shift for the electromagnetic characteristics.

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Differential Gene Expression in Response to Drought Stress in Maize Seedling

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Agricultural Sciences in China 2009年第7期8卷 767-776页

作者： deng Xiao-feng FU Feng-ling NI na LI Wan-chen Maize Research Institute Sichuan Agricultural University/Key Laboratory of Crop Genetic Resources and Improvement Ministry of Education Ya＇an 625014 P.R. China

To provide the useful information for the choice of molecular marker used in marker-assisted selection of drought tolerance, it is necessary to find out more candidate genes and fulfill the information gaps in gene expression regulation under drought stress. In this study, we isolated four differentially expressed cDna fragments from leaves of a droughttolerant inbred line by suppression subtractive hybridization and reverse Northern hybridization, and validated their differential expression patterns among six inbred lines with different drought tolerance in response to drought stress by quantitative real-time PCR. Sequence similarity analysis indicated that two of four differentially expressed cDna showed homology to gene DegP encoding trypsin-like serine protease, and gene PGAM-i encoding cofactor-independent phosphoglyceromutase, respectively. Expressions of the genes corresponding to four cDna fragments was decreased at 6 h after drought stress treatment in most of the six inbred lines, and then returned to the control level with further stress in three of the tolerant inbred lines. The expression of the gene PGAM-i and the genes corresponding to fragments E4 and F4 were increased to a high level in tolerant inbred line 81565. In the two drought-sensitive inbred lines （Dan340 and ES40）, the expression of these genes was still down-regulated. The probable mechanisms of these genes in response to drought stress were discussed. These results indicated that the drought-tolerant inbred lines upregulated the expression of the drought-tolerant candidate genes, in contrast, drought-sensitive inbred lines downregulated the expression of the genes.

关键词： DegP drought tolerance expression pattern maize PGAM-i

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Semantic Segmentation Using DeepLabv3+ Model for Fabric Defect Detection

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Wuhan University Journal of natural Sciences 2022年第6期27卷 539-549页

作者： ZHU Runhu XIN Binjie deng na FAN Mingzhu School of Electronic and Electrical Engineering Shanghai University of Engineering ScienceShanghai 201620China School of Textile and Fashion Technology Shanghai University of Engineering ScienceShanghai 201620China

Currently, numerous automatic fabric defect detection algorithms have been proposed. Traditional machine vision algorithms that set separate parameters for different textures and defects rely on the manual design of corresponding features to complete the detection. To overcome the limitations of traditional algorithms, deep learning-based correlative algorithms can extract more complex image features and perform better in image classification and object detection. A pixel-level defect segmentation methodology using DeepLabv3+, a classical semantic segmentation network, is proposed in this paper. Based on ResNet-18,ResNet-50 and Mobilenetv2, three DeepLabv3+ networks are constructed, which are trained and tested from data sets produced by capturing or publicizing images. The experimental results show that the performance of three DeepLabv3+ networks is close to one another on the four indicators proposed(Precision, Recall, F1-score and Accuracy), proving them to achieve defect detection and semantic segmentation, which provide new ideas and technical support for fabric defect detection.

关键词： fabric defect detection semantic segmentation deep learning DeepLabv3+

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