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Catalytic effect in lithium metal batteries: From heterogeneous catalyst to homogenous catalyst

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Journal of Energy Chemistry 2024年第3期90卷 305-326,I0008页

作者： Haining fan xuan-wen gao Hailong xu Yichun Ding Shi-xue Dou wen-Bin Luo School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong 100872China Institute for Energy Electrochemistry and Urban Mines Metallurgy School of MetallurgyNortheastern UniversityShenyang 110819LiaoningChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghai 200000China State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710000ShaanxiChina

Lithium metal batteries are regarded as prominent contenders to address the pressing needs owing to the high theoretical *** the broader implementation,the primary obstacle lies in the intricate multi-electron,multi-step redox reaction associated with sluggish conversion kinetics,subsequently giving rise to a cascade of parasitic *** order to smooth reaction kinetics,catalysts are widely introduced to accelerate reaction rate via modulating the energy *** past decades,a large amount of research has been devoted to the catalyst design and catalytic mechanism exploration,and thus the great progress in electrochemical performance has been ***,it is necessary to make a comprehensive review toward key progress in catalyst design and future development *** this review,the basic mechanism of lithium metal batteries is provided along with corresponding advantages and existing challenges detailly *** main catalysts employed to accelerate cathode reaction with emphasis on their catalytic mechanism are summarized as ***,the rational design and innovative direction toward efficient catalysts are suggested for future application in metal-sulfur/gas battery and *** review is expected to drive and benefit future research on rational catalyst design with multi-parameter synergistic impacts on the activity and stability of next-generation metal battery,thus opening new avenue for sustainable solution to climate change,energy and environmental issues,and the potential industrial economy.

关键词： Energy storage and conversion Metal battery Sulfur battery Air battery Catalytic effect Heterogeneous catalyst Homogeneous catalyst

Reducing bluetooth discovery time in collaborative working environment

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The Journal of China Universities of Posts and Telecommunications 2012年第4期19卷 43-48,93页

作者： gao Feng Martin Hope fan Tong-rang LIU wen-hong School of Information Science and Technology Shijiazhuang Tiedao University Shijiazhuang 050043 China School of Computing Science and Engineering The University of Salford Manchester M5 4WT UK Scientific and Technical Department Shijiazhuang Posts and Telecommunications Technical College Shijiazhuang 050021 China

The main aim of the research presented in this paper was to investigate ＇how to reduce the bluetooth discovery time in collaborative middleware based collaborative working environment （CWE）, to enhance the communications of mobile users. The high level collaborative middleware is a research and technology development （RTD） challenge and one of most desirable medium to long term research outputs for CWEs. This research activity outlines a collaborative middleware module that has been developed on Smartphone technology and enables to reduce the discovery time of a multi-user collaborative working environment via a Bluetooth wireless communications network. To achieve this aim, it started with discussing the key design parameters, and then the design of collaborative middleware module with collaborative functionality; finally it is a comparison test to evaluate the impact of middleware. The result of the evaluation concludes the Bluetooth enabled collaborative middleware can reduce the discovery time in CWE.

关键词： CWE bluetooth middleware smartphone

Gut microbiota dysbiosis in patients with nonalcoholic fatty liver disease

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Hepatobiliary & Pancreatic Diseases International 2017年第4期16卷 375-381页

作者： Feng Shen Rui-Dan Zheng Xing-Qiang Sun wen-jin Ding Xiao-ying Wang Jian-gao fan Department of Gastroenterology Xinhua HospitalShanghai Jiaotong University School of MedicineShanghai 200092China Department of Pathology Xinhua HospitalShanghai Jiaotong University School of MedicineShanghai 200092China Research and Therapy Centre for Liver Disease Zhengxing HospitalZhangzhou 363000China Department of Microbial Genomics Research BGI ShenzhenShenzhen 518083China

BACKGROUND: Gut microbiota plays a significant role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). This study aimed to assess the contribution of gut microbiota dysbiosis to the pathogenesis of NAFLD. METHODS: Forty-seven human feces samples (25 NAFLD patients and 22 healthy subjects) were collected and 16S rDNA amplicon sequencing was conducted on Hiseq 2000 platform. Discrepancy of species composition between controls and NAFLD group was defined by Metastats analysis under P value ying gut microbiota. In contrast to the results of previous research on children, decreased levels of Prevotella might be detrimental for adults with NAFLD. Th

关键词： gut microbiota fatty liver disease non-alcoholic steatohepatitis fibrosis

硝基苯类物质在铜电极上的电还原特性及pH的影响

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环境科学 2005年第2期26卷 102-107页

作者：徐文英樊金红高廷耀同济大学城市污染控制国家工程研究中心上海200092

采用循环伏安法 ,对硝基苯类化合物在铜电极表面上的电还原特性进行了研究 ,评价了它们在铜电极上的电还原反应活性 ,并且讨论了这类物质在铜电极上的还原机理和酸度对它的影响 .结果表明 ,硝基苯类化合物能在铜电极表面被直接还原 ;还... 详细信息

采用循环伏安法 ,对硝基苯类化合物在铜电极表面上的电还原特性进行了研究 ,评价了它们在铜电极上的电还原反应活性 ,并且讨论了这类物质在铜电极上的还原机理和酸度对它的影响 .结果表明 ,硝基苯类化合物能在铜电极表面被直接还原 ;还原电位在 - 0. 5 8V和 - 1 .32V左右 (vs SCE) ,酸度和碱度均有利于硝基在铜电极上的还原 :在碱性条件下容易发生消去反应生成亚硝基 ;酸性条件下 ,得电子后的硝基与氢离子之间反应的几率就增大 ,导致通过溶液的电流值增加 ,另外 ,氢的增加也有利于电极上发生的加成和取代反应 .pH对不同的硝基苯类物质在铜电极上的电还原特性有不同程度的影响 ,这主要取决于苯环上其它取代基的性质、结构、数量和它与硝基在苯环上的相对位置 .实验结果为催化铁内电解法机理研究提供了理论和实验依据 .

关键词：含硝基苯类化合物废水循环伏安法电还原特性 pH 催化铁内电解法

ITO thin films prepared by electron beam evaporation with End-Hall ion source assisted without heating to the substrate

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光学精密工程 2005年第4期13卷 397-402页

作者： gao jin-song xu ying WANG Xiao-yi WANG Tong-tong Optical Technology and Research Center Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130022 China

ITO （indium oxide doped with tin） thin films were deposited on glass substrates by using ITO pellet with a composition of w（In2O3）=90% and w（SnO2）=10% by electron beam evaporated with End-Hall ion source assisted without extra heating. The rate of deposition and flow rate of oxygen were measured and changed to obtain the best properties of ITO thin films. Furthermore, the post annealing process was done in vacuum at different annealing temperatures for 2 h and at 400℃ for different keeping time, respectively. The relation between optical, electrical properties and structure was discussed in detail.

关键词： ITO 薄膜电子束离子源

Catalpol Prevents Glomerular Angiogenesis Induced by Advanced Glycation End Products via Inhibiting Galectin-3

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Current Medical Science 2023年第4期43卷 668-678页

作者： Wei-xiang SUN Yu-yan gao ying CAO jin-fu LU gao-hong LV Hui-qin xu Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals Jiangsu Agri-animal Husbandry Vocational CollegeTaizhou 225300China Department of Chinese Pharmaceutical Technology School of Animal PharmacyJiangsu Agri-animal Husbandry Vocational CollegeTaizhou 225300China Department of Pharmacology School of PharmacyNanjing University of Chinese MedicineNanjing 210023China Jiangsu Key laboratory of Pharmacology and Safety Evaluation for Chinese Material Medica Nanjing University of Chinese MedicineNanjing 210023China Department of Pharmacology School of PharmacyNanjing University of Chinese Medicine Hanlin CollegeTaizhou 225300China

Objective:The main characteristics of diabetic nephropathy(DN)at the early stage are abnormal angiogenesis of glomerular endothelial cells(GECs)and macrophage ***-3 plays a pivotal role in the pathogenesis of DN via binding with its ligand,advanced glycation end products(AGEs).Catalpol,an iridoid glucoside extracted from Rehmannia glutinosa,has been found to ameliorate vascular inflammation,reduce endothelial permeability,and protect against endothelial damage in diabetic ***,little is known about whether catalpol could exert an anti-angiogenesis and anti-inflammation effect induced by ***:Mouse GECs(mGECs)and RAW 264.7 macrophages were treated with different concentrations of AGEs(0,50,100,200 and 400μg/mL)for different time(0,6,12,24 and 48 h)to determine the optimal concentration of AGEs and treatment *** were treated with catalpol(10μmol/L),GB1107(1μmol/L,galectin-3 inhibitor),PX-478(50μmol/L,HIF-1αinhibitor),adenovirus-green fluorescent protein(Ad-GFP)[3×10^(7)plaque-forming unit(PFU)/mL]or Ad-galectin-3-GFP(2×10^(8)PFU/mL),which was followed by incubation with 50μg/mL *** levels of galectin-3,vascular endothelial growth factor A(VEGFA)and pro-angiogenic factors angiopoietin-1(Ang-1),angiopoietin-2(Ang-2),tunica interna endothelial cell kinase-2(Tie-2)were detected by enzyme-linked immunosorbent assay(ELISA).Cell counting kit-8(CCK-8)assay was used to evaluate the proliferation of these *** expression levels of galectin-3,vascular endothelial growth factor receptor 1(VEGFR1),VEGFR2,and hypoxia-inducible factor-1α(HIF-1α)in mGECs and those of galectin-3 and HIF-1αin RAW 264.7 macrophages were detected by Western blotting and immunofluorescence(IF)*** rat DN model was ***(100 mg/kg)or GB1107(10 mg/kg)was administered intragastrically once a day for 12 ***-galectin-3-GFP(6×10^(7)PFU/mL,0.5 mL)or Ad-GFP(6×10^(6)PFU/mL,0.5 mL)was injected into the tail vein of rats 48 h before the

关键词： catalpol glomerular angiogenesis advanced glycation end products galectin-3

A kinetic study and factor analysis of solar thermochemical membrane reactors for syngas production

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Science China Technological Sciences 2025年第1期 207-221页

作者： Jiaxin XING Chao xu Xiangyu SUN Xin XIA Fei jin Qiongqiong JIANG Jiale gao Key Laboratory of Power Station Energy Transfer Conversion and System of MOE School of Energy Power and Mechanical EngineeringNorth China Electric Power University Department of Chemistry University College London School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyState Ethnic Affairs CommissionNorth Minzu University

Solar thermochemical conversion technologies are promising for effectively utilizing solar energy by capturing the full spectrum of solar radiation. To overcome the challenges of low energy conversion efficiency and intermittency faced by solar thermochemical conversion, these technologies can be effectively integrated with membrane reactor technology. Although the performance of solar thermochemical membrane reactors has been experimentally tested, the chemical reactions and oxygen transport mechanisms during the energy conversion process remain poorly understood. This study introduces a resistance network model to elucidate the interactions between interfacial reactions and bulk diffusion during simultaneous oxidationreduction reactions on both sides of the membrane. We analyzed the oxygen flux of the membrane reactor under various operating conditions using this model to identify the reaction/transport-limiting side of the overall process. The most effective solar membrane reactor configuration utilizes natural gas and CO2, facilitating clean conversion of fossil fuels with significant advantages in fuel production and energy efficiency. Introducing CH4lowers the overall reaction temperature, maintains low oxygen partial pressure on the sweep side, and produces a synthesis gas with a 2:1 H2/CO molar ratio. Finally, a sensitivity analysis was used to explore the relationship between overall fuel production performance and operational parameters,highlighting the critical role of this research in enhancing the reaction and transport performance of membrane reactors and advancing the development of solar-driven thermochemical fuel production technologies.

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Monitoring the green evolution of vernacular buildings based on deep learning and multi-temporal remote sensing images

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Building Simulation 2023年第2期16卷 151-168页

作者： Baohua wen fan Peng Qingxin Yang ting Lu Beifang Bai Shihai Wu Feng xu School of Architecture and Planning Hunan UniversityChangsha 410082China Hunan Key Laboratory of Sciences of Urban and Rural Human Settlements at Hilly Areas Changsha 410082China College of Electrical and Information Engineering Hunan UniversityChangsha 410082China School of Architecture Changsha University of Science and TechnologyChangsha 410004China

The increasingly mature computer vision(CV)technology represented by convolutional neural networks(CNN)and available high-resolution remote sensing images(HR-RSIs)provide opportunities to accurately measure the evolution of natural and artificial environments on Earth at a large *** on the advanced CNN method high-resolution net(HRNet)and multi-temporal HR-RSIs,a framework is proposed for monitoring a green evolution of courtyard buildings characterized by their courtyards being roofed(CBR).The proposed framework consists of an expert module focusing on scenes analysis,a CV module for automatic detection,an evaluation module containing thresholds,and an output module for data *** on this,the changes in the adoption of different CBR technologies(CBRTs),including light-translucent CBRTs(LT-CBRTs)and non-lighttranslucent CBRTs(NLT-CBRTs),in 24 villages in southern Hebei were identified from 2007 to *** evolution of CBRTs was featured as an inverse S-curve,and differences were found in their evolution stage,adoption ratio,and development speed for different ***-CBRTs are the dominant type but are being replaced and surpassed by NLT-CBRTs in some villages,characterizing different preferences for the technology type of *** proposed research framework provides a reference for the evolution monitoring of vernacular buildings,and the identified evolution laws enable to trace and predict the adoption of different CBRTs in a particular *** work lays a foundation for future exploration of the occurrence and development mechanism of the CBR phenomenon and provides an important reference for the optimization and promotion of CBRTs.

关键词： courtyard buildings evolution deep learning high-resolution network remote sensing images

Modeling and analysis of oil frictional loss in wet-type permanent magnet synchronous motor for aerospace electro-hydrostatic actuator

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Chinese Journal of Aeronautics 2023年第11期36卷 328-341页

作者： jinquan xu wenbo jin hong GUO Tian YU wenhu fan Zongxia JIAO School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China Ningbo Institute of Technology Beihang UniversityNingbo 315800China Research Institute for Frontier Science Beihang UniversityBeijing 100191China

To improve the power density and simplify the seal structure,the Wet-Type Permanent Magnet Synchronous Motor(WTPMSM)technique has been applied to aerospace Electro-Hydrostatic Actuators(EHA).In a WTPMSM,the stator and the rotor are both immersed in the aviation hydraulic *** the heat dissipation performance of the WTPMSM can be enhanced,the aviation hydraulic oil will cost an extra oil frictional loss in the narrow airgap of the *** paper proposes an accurate oil frictional loss model for the WTPMSM,in which the wide speed range(0–20 kr/min)and the narrowness of the airgap(0.5–1.5 mm)are its ***,the mechanism of the oil frictional loss in the airgap of the WTPMSM is *** an accurate oil frictional loss model is proposed considering the nonlinear influence caused by the Taylor ***,the influence of motor dimensions on oil frictional loss is ***,the proposed oil frictional loss model is verified by experiments,which provides a guideline for engineers to follow in the WTPMSM design.

关键词： Electro-hydrostatic actuator Motor dimensions Oil frictional loss Taylor vortex Wet-type permanent magnet synchronous motor