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Electrocatalytic Oxygen Reduction to Produce Hydrogen Peroxide:Rational Design from Single‑Atom Catalysts to Devices

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Electrochemical Energy Reviews 2022年第3期5卷 71-104页

作者： Yueyu Tong Liqun Wang Feng Hou shi Xue dou Ji Liang Technology of Ministry of Education School of Materials Science and EngineeringTianjin UniversityTianjinChina Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongInnovation CampusSquires WayNorth WollongongNSW 2500Australia Applied Physics Department College of Physics and Materials ScienceTianjin Normal UniversityTianjinChina

Electrocatalytic production of hydrogen peroxide(H_(2)O_(2))via the 2e^(-) transfer route of the oxygen reduction reaction(ORR)offers a promising alternative to the energy-intensive anthraquinone process,which dominates current industrial-scale production of H_(2)O_(2).The availability of cost-effective electrocatalysts exhibiting high activity,selectivity,and stability is imperative for the practical deployment of this ***-atom catalysts(SACs)featuring the characteristics of both homogeneous and heterogeneous catalysts are particularly well suited for H_(2)O_(2) synthesis and thus,have been intensively investigated in the last few ***,we present an in-depth review of the current trends for designing SACs for H_(2)O_(2) production via the 2e^(-)ORR *** start from the electronic and geometric structures of ***,strategies for regulating these isolated metal sites and their coordination environments are presented in detail,since these fundamentally determine electrocatalytic ***,correlations between electronic structures and electrocatalytic performance of the materials are ***,the factors that potentially impact the performance of SACs in H_(2)O_(2)production are ***,the challenges and opportunities for rational design of more targeted H_(2)O_(2)-producing SACs are *** hope this review will present the latest developments in this area and shed light on the design of advanced materials for electrochemical energy conversion.

关键词： Single-atom catalyst design Electrocatalytic H_(2)O_(2)production Oxygen reduction reaction Two-electron process

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Wear-resistance and anti-scuffing of multi-arc ion plating molybdenum films

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中国有色金属学会会刊：英文版 2004年第Z1期14卷 391-394页

作者： WANG Hai-dou XU Bin-shi LIU Jia-jun ZHUANG Da-ming National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China Department of Mechanical Engineering Tsinghua University Beijing 100084 China Department of Mechanical Engineering Tsinghua University Beijing 100084 China

The multi-arc ion plating technology was employed to prepare the molybdenum films with thickness of 3 μm on the AISI 1045 steel. The wear and scuffing tests were carried out on the ball-on-disc tester. AFM and SEM equipped with EDS were adopted to observe and analyze the morphologies and element compositions of surface,cross-section and worn scar of the Mo film. The phase structure was studied by XRD and the bonding strength between Mo film and substrate was measured by scratching tester. The tribological experiments show that the Mo film possesses a good wear-resistance and an excellent anti-scuffing property. The failure mechanism of Mo film under extreme condition is flaking off.

关键词： multi-arc ion plating molybdenum film wear and scuffing

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Flexoelectricity Driven Fano Resonance in Slotted Carbon Nanotubes for Decoupled Multifunctional Sensing

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Research 2021年第2期2021卷 1158-1166页

作者： Jinlong Ren Yingchao Liu Xingqiang shi Guangcun Shan Mingming Tang Chaocheng Kaun Kunpeng dou College of Information Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Optic-Electronic Information and Materials of Hebei Province Institute of Life Science and Green DevelopmentCollege of Physics Science and TechnologyHebei UniversityBaoding 071002China Institute of Precision Instrument and Quantum Sensing School of Instrumentation Science and Opto-Electronics EngineeringBeihang UniversityBeijing 100191China Institute of Experimental Physics Saarland University66123 SaarbrückenGermany School of Geosciences China University of PetroleumQingdao 266580China Research Center for Applied Sciences Academia SinicaTaipei 11529China

Multifunctionality,interference-free signal readout,and quantum effect are important considerations for flexible sensors equipped within a single unit towards further *** address these criteria,we present the slotted carbon nanotube(CNT)junction features tunable Fano resonance driven by flexoelectricity,which could serve as an ideal multimodal sensory *** on extensive ab initio calculations,we find that the effective Fano factor can be used as a temperature-insensitive extrinsic variable for sensing the bending strain,and the Seebeck coefficient can be used as a strain-insensitive intrinsic variable for detecting ***,this dual-parameter permits simultaneous sensing of temperature and strain without signal *** further demonstrate the applicability of this slotted junction to ultrasensitive chemical sensing which enables precise determination of donor-type,acceptor-type,and inert *** is due to the enhancement or counterbalance between flexoelectric and chemical *** gating would preserve the electron–hole symmetry of the slotted junction whereas chemical gating would break *** a proof-of-concept demonstration,the slotted CNT junction provides an excellent quantum platform for the development of multistimuli sensation in artificial intelligence at the molecular scale.

关键词： Flex equipped precise

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分子印迹膜-固相萃取-高效液相色谱法同时检测橙子中噻苯隆和氯吡脲

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食品科学 2025年第1期46卷 176-183页

作者：石雨王建豆瑞祁迎春董晓牛志睿任景俞黄华赵怡雪延安大学石油工程与环境工程学院延安市环境检测与修复重点实验室陕西延安716000 北京理工大学化学与化工学院北京100081

以聚多巴胺(polydopamine,PDA)修饰的聚偏氟乙烯(polyvinylidene fluoride,PVDF)膜为基膜,噻苯隆(thidiazuron,TDZ)为模板,甲基丙烯酸(methacrylic acid,MAA)为功能单体,乙二醇二甲基丙烯酸酯(ethylene glycol dimethacrylate,EGDMA)为交联剂,合成TDZ分子印迹膜(molecularly imprinted membrane,MIM),并将其应用于橙子中TDZ及其结构类似物氯吡脲(forchlorfenuron,CPPU)的高选择性同时提取。扫描电子显微镜表征结果表明,致密分子印迹聚合物通过PDA涂层固定在PDA@PVDF膜的三维网络结构表面;性能测试结果表明,MIM对TDZ和CPPU的吸附容量分别是相应非印迹膜的1.80、1.89倍,分别在20、30 min达到吸附平衡;MIM对干扰物质香豆素和3-叔丁基苯酚的特异性因子分别达到23.2和19.3。以MIM为固相萃取膜片,成功从橙子样品中高选择性同时提取TDZ和CPPU,在加标浓度为2.0、3.0、5.0μmol/L时,高效液相色谱法检测的加标回收率分别为90.3%~99.4%和88.2%~98.1%,相对标准偏差分别为0.9%~2.5%和1.2%~3.0%(n=3)。该方法能同时快速检测TDZ和CPPU,操作简单,具有较好的灵敏度、精密度及回收率,检测成本低,适用于果蔬中TDZ和CPPU残留的检测。

关键词：分子印迹膜固相萃取高效液相色谱法特异性识别噻苯隆氯吡脲

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Deactivation mechanism for water splitting:Recent advances

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Carbon Energy 2024年第7期6卷 53-82页

作者： Yansong Jia Yang Li Qiong Zhang Sohail Yasin Xinyu Zheng Kai Ma Zhengli Hua Jianfeng shi Chaohua Gu Yuhai dou shixue dou Hydrogen Energy Institute Zhejiang UniversityHangzhouChina Institute of Process Equipment Zhejiang UniversityHangzhouChina Donghai Laboratory ZhoushanChina Department of Mechanical Engineering Faculty of EngineeringUniversiti MalayaKuala LumpurMalaysia Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Hydrogen(H_(2)) has been regarded as a promising alternative to fossil-fuel *** H_(2) produced via water electrolysis(WE)powered by renewable energy could achieve a zero-carbon *** attention has been focused on developing highly active catalysts to facilitate the reaction kinetics and improve the energy efficiency of ***,the stability of the electrocatalysts hampers the commercial viability of *** studies have elucidated the origin of catalyst *** this review,we first discuss the WE mechanism,including anodic oxygen evolution reaction(OER)and cathodic hydrogen evolution reaction(HER).Then,we provide strategies used to enhance the stability of *** that,the deactivation mechanisms of the typical commercialized HER and OER catalysts,including Pt,Ni,RuO_(2),and IrO_(2),are ***,the influence of fluctuating energy on catalyst degradation is highlighted and in situ characterization methodologies for understanding the dynamic deactivation processes are described.

关键词： deactivation mechanism hydrogen evolution in situ characterization oxygen evolution water splitting

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Expression of somatostatin mRNA in various differentiated types of gastric carcinoma

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World Journal of Gastroenterology 1998年第1期4卷 53-56页

作者： ZHANG Qin-Xian dou Ying-Li shi Xue-Yi DING Yi Dept. of Histology and Embryology Henan Medical University Zhengzhou 450052 Henan Province China Henan Medical University China

IM METHODS By using in situ hybridization and immunohistochemical techniques, the expression of somatostatin mRNA and somatostatin immunoreactivity in the normal gastric mucosa, the poorly, moderately and welldifferentiated gastric carcinomas, and various clinical stages of carcinoma were observed.RESULTS In comparison with the normal gastric mucosa, the significantly increased expression of somatostatin mRNA positive cells was displayed in gastric carcinoma (t=2681, P<001). The positive signal cells were distributed in a scattered form or aggregated as a mass or a cord, and the positive cells were more significantly enhanced in poorly differentiated carcinomas than those in well and moderately differentiated carcinomas (t=2962, P<001). The somatostatin mRNA hybridization signals in stages Ⅲ and Ⅳ of gastric carcinoma were significantly higher than those in stages Ⅰ and Ⅱ. The results of somatostatin immunoreactivity were consistent with those of in situ hybridization.CONCLUSION The alteration of the expression of somatostatin mRNA was associated with the development of gastric carcinoma and may play an important role in the process of tumor differentiation..

关键词： stomach neoplasms somatostatin RNA,messenger in situ hybridization immunohistochemistry

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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

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A membrane-inspired algorithm with a memory mechanism for knapsack problems

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第8期14卷 612-622页

作者： juan-juan HE Jian-hua XIAO Xiao-long shi Tao SONG Key Laboratory of Image Processing and Intelligent Control School of AutomationHuazhong University of Science and Technology The Logistics Research Center Nankai University

Membrane algorithms are a class of distributed and parallel algorithms inspired by the structure and behavior of living cells. Many attractive features of living cells have already been abstracted as operators to improve the performance of algorithms. In this work, inspired by the function of biological neuron cells storing information, we consider a memory mechanism by introducing memory modules into a membrane algorithm. The framework of the algorithm consists of two kinds of modules (computation modules and memory modules), both of which are arranged in a ring neighborhood topology. They can store and process information, and exchange information with each other. We test our method on a knapsack problem to demonstrate its feasibility and effectiveness. During the process of approaching the optimum solution, feasible solutions are evolved by rewriting rules in each module, and the information transfers according to directions defined by communication rules. Simulation results showed that the performance of membrane algorithms with memory cells is superior to that of algorithms without memory cells for solving a knapsack problem. Furthermore, the memory mechanism can prevent premature convergence and increase the possibility of finding a global solution.

关键词： Membrane algorithm Memory mechanism Knapsack problem

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Effect of modified elastomeric binders on the electrochemical properties of silicon anodes for lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2012年第8期19卷 752-756页

作者： Tao Li juan-yu Yang shi-gang Lu General Research Institute for Nonferrous Metals Beijing 100088China

Silicon has been investigated intensively as a promising anode material for rechargeable lithium-ion batteries. The choice of a binder is very important to solve the problem of the large capacity fade observed along cycling. The effect of modified elastomeric binders on the electrochemical performance of crystalline nano-silicon powders was studied. Compared with the conventional binder （polyvinylidene fluoride （PVDF））, Si electrodes using the elastomeric styrene butadiene rubber （SBR） and sodium carboxymethyl cellulose （SCMC） com- bined binder show an improved cycling performance. The reversible capacity of the Si electrode with the SCMC/SBR binder is as high as 2221 mA.h/g for 30 cycles in a voltage window between 0.005 and 2 V. The structure changes from SEM images of the silicon electrodes with different binders were used to explore the property improvement.

关键词： lithium batteries silicon anodes electrochemical properties

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Prediction of the global potential geographical distribution of Hylurgus ligniperda using a maximum entropy model

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Forest Ecosystems 2022年第4期9卷 449-459页

作者： Zhuojin Wu Tai Gao Youqing Luo juan shi Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityBeijing100083China Sino-France Joint Laboratory for Invasive Forest Pests in Eurasia Beijing Forestry UniversityBeijing100083China State Key Laboratory of Rice Biology Institute of Insect SciencesZhejiang UniversityHangzhou310058China

Background: Hylurgus ligniperda(Fabricius) is native to Europe but has established populations in many countries and regions. H. ligniperda mainly infests Pinus species, and can cause severe weakness and even death of the host through its boring activity;it can also be a vector of various pathogenic fungi. This study was conducted to investigate the environmental variables limiting the distribution of H. ligniperda and the change trend of its suitable areas under climate ***: We used a maximum entropy model to predict the potential geographical distribution of H. ligniperda on a global scale under near current and future climatic scenarios using its occurrence data and environmental variables. The result shows that the areas surrounding the Mediterranean region, the eastern coastal areas of Asia, and the southeastern part of Oceania are highly suitable for H. ligniperda. The environmental variables with the greatest effect on the distribution of H. ligniperda were determined using the jackknife method and Pearson’s correlation analysis and included the monthly average maximum temperature in April, precipitation of driest quarter, the monthly average minimum temperature in December, precipitation of coldest quarter, mean temperature of driest quarter and mean diurnal ***: Excessive precipitation in winter and low temperatures in spring had a great effect on the distribution of H. ligniperda. The potential geographical distribution of H. ligniperda was predicted to change under future climatic conditions compared with near current climate conditions. Highly suitable areas, moderately suitable areas and low suitable areas were predicted to increase by 59.99%, 44.43% and 22.92%, respectively, under the2081–2100 ssp245 scenario.

关键词： Climate change Hylurgus ligniperda Invasive pest Maximum entropy model Potential geographical distribution

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