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Chinese Chemical Letters 2024年第5期35卷 57-65页

作者： zixuan zhu Xianjin Shi Yongfang Rao Yu Huang Key Laboratory of Aerosol Chemistry&Physics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of Sciences(CAS)Xi’an 710061China Center for Excellence in Quaternary Science and Global Change Chinese Academy of SciencesXi’an 710061China University of Chinese Academy of Sciences Beijing 100049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

Integrated CO_(2) capture and conversion of(ICCC)is one of the most effective solutions to reduce anthropogenic CO_(2) emissions,which has attracted extensive public *** functional materials(DFMs),including adsorbent and catalyst,are the key components to achieve *** oxide(MgO)is an ideal adsorbent for ICCC,since it is characterized by high theoretical adsorption capacity,low cost,low energy consumption and extensive *** can also be used as DFMs in combination with the Ni *** not only can act as an adsorbent in DFMs but also enhance the catalytic performance of *** review summarizes the advantages and modification methods of MgO as adsorbent and the influence of its adsorption conditions on the adsorption ***,the important role of MgO in facilitating the catalytic conversion of CO_(2) is *** research focuses are proposed for the development of MgO based DFMs with high adsorption capacity,high stability,conversion,and selectivity as well as low cost and energy consumption.

关键词： CO_(2) ICCC MgO Adsorption Conversion

Phosphorene:a Potential 2D Material for Highly Efficient Polysulfide Trapping and Conversion

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Chemical Research in Chinese Universities 2020年第4期36卷 631-639页

作者： PEI Zhibin LIU Yun SUN Da zhu zixuan WANG Gongming Key Laboratory of Engineering Dielectric and Applications Ministry of EducationHarbin University of Science and TechnologyHarbin 150080P.R.China School of Environment and Energy South China University of TechnologyGuangzhou 510640P.R.China Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry University of Science&Technology of ChinaHefei 230026P.R.China

Effectively trapping lithium polysulfide species and accelerating the reaction conversion kinetics are the main strategies to improve the performance of lithium-sulfur(Li-S)*** the researchers found in 2014 that two-dimensional(2D)phosphorene nanosheets could be exfoliated from the bulk black phosphorus,numerous researches have been devoted to exploring the phosphorene with unique properties for the application in Li-S batteries In this *** summarize the recent theoretical and experimental progress of phosphorene for Li-S ***-sides,we also introduce the relationship between the interfacial interaction on phosphorene and the performance enhancement of Li-S ***,future challenges and remaining opportunities for phosphorene in Li-s batteries are finally discussed.

关键词： Phosphorene Lithium-sulfur battery Shuttle effect Catalytic conversion Enhanced redox kinetics

Energy-efficient computing-in-memory architecture for AI processor: device, circuit, architecture perspective

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Science China(Information Sciences) 2021年第6期64卷 45-59页

作者： Liang CHANG Chenglong LI Zhaomin ZHANG Jianbiao XIAO Qingsong LIU Zhen zhu Weihang LI zixuan zhu Siqi YANG Jun ZHOU School of Information and Communication Engineering University of Electronic Science and Technology of China

An artificial intelligence(AI) processor is a promising solution for energy-efficient data processing, including health monitoring and image/voice recognition. However, data movements between compute part and memory induce memory wall and power wall challenges to the conventional computing ***, the memory-centric architecture has been revised to solve the data movement issue, where the memory is equipped with the compute-capable memory technique, namely, computing-in-memory(CIM). In this paper, we analyze the requirement of AI algorithms on the data movement and low power requirement of AI processors. In addition, we introduce the story of CIM and implementation methodologies of CIM architecture. Furthermore, we present several novel solutions beyond traditional analog-digital mixed static random-access memory(SRAM)-based CIM architecture. Finally, recent CIM tape-out studies are listed and discussed.

关键词： energy efficiency computing-in-memory non-volatile memory test demonstrators AI processor

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灵活间隔与车辆共享下的大小交路运行图优化

交通与运输 2024年第3期40卷 47-53页

作者：王芳盛杨儒冬肖晓芳朱子轩洪玲同济大学交通运输工程学院上海201804 同济大学道路与交通工程教育部重点实验室上海201804 卡斯柯信号有限公司上海200072

基于客流时空分布的不均衡性,以提升整体量能匹配率为目标,分析大小交路模式下列车运行、车辆运用与折返、乘客乘车选择行为等相关约束,构建基于灵活间隔与车辆运用的大小交路运行图优化模型,提出一种基于目标分解的混合整数线性规划求... 详细信息

基于客流时空分布的不均衡性,以提升整体量能匹配率为目标,分析大小交路模式下列车运行、车辆运用与折返、乘客乘车选择行为等相关约束,构建基于灵活间隔与车辆运用的大小交路运行图优化模型,提出一种基于目标分解的混合整数线性规划求解算法,并以某线路为例验证模型的可行性。优化结果表明:灵活行车间隔和大小交路方案,可从时空维度优化运能供给,提升整体量能匹配率,并有效降低站台的聚集乘客数量;采用车辆共享模式有利于减少车辆的运用成本;灵活调整行车间隔,将改变不同时段的运输能力分布,但也会增加车辆的运用数量。表明本方法具有良好的可用性及稳定性,能够为城市轨道交通列车运行图优化提供参考。

关键词：列车运行图大小交路灵活间隔车辆共享量能匹配

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小型化GIS隔板绝缘子电场优化设计

广东电力 2024年第4期37卷 105-114页

作者：夏欣倩祝子绚刘琳单婵王世峻王梦薇朱理蔡亦竹郝艳捧李立浧国网上海市电力公司经济技术研究院上海200000 广东电网有限责任公司电力科学研究院广东广州510080 华南理工大学电力学院广东广州510641

为解决小型化SF_(6)气体绝缘金属封闭开关设备(gas insulated metal-enclosed switchgear,GIS)沿面闪络频发的问题,以交流220 kV GIS隔板绝缘子为研究对象,基于电场设计准则、沿面闪络事故原因分析和电场的有限元分析计算结果,提出小型... 详细信息

为解决小型化SF_(6)气体绝缘金属封闭开关设备(gas insulated metal-enclosed switchgear,GIS)沿面闪络频发的问题,以交流220 kV GIS隔板绝缘子为研究对象,基于电场设计准则、沿面闪络事故原因分析和电场的有限元分析计算结果,提出小型化GIS隔板绝缘子的电场设计中场强控制的关键点。研究发现:①目前GIS绝缘件的电场设计准则没有考虑两因素对沿面绝缘的影响,一是SF_(6)气体中沿面闪络电压比气体间隙击穿电压分散性大,二是特快速瞬态过电压对附着金属微粒盆式绝缘子沿面的绝缘威胁比标准雷电过电压大;②为提高盆式绝缘子的沿面绝缘强度,不仅要优化电场分布使得放电不沿面发展,还要降低微粒积聚区域的电场强度提升沿面的金属微粒容错性;③盆式绝缘子具有较好的金属微粒容错性,更适用于金属微粒较多的开关气室,相比之下,平盘绝缘子更适用于金属微粒相对较少的母线气室;④在沿面电场强度校核中,盆式绝缘子需重点关注绝缘子凹面电场强度最大值,平盘绝缘子则需关注沿面接地端电场强度最大值;⑤在内绝缘校核方面,2种绝缘子均需要关注内嵌电极表面电场强度的控制。

关键词： GIS 隔板绝缘子结构优化电场仿真沿面闪络

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In Vivo Voltammetric Imaging of Metal Nanoparticle-Catalyzed Single-Cell Electron Transfer by Fermi Level-Responsive Graphene

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Research 2024年第1期2023卷 271-280页

作者： Qing Xia Rui Liu Xueqin Chen zixuan Chen Jun-Jie zhu State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023P.R.China Shenzhen Research Institute of Nanjing University Shenzhen 518000P.R.China

Metal nanomaterials can facilitate microbial extracellular electron transfer(EET)in the electrochemically active ***,the role of nanomaterials/bacteria interaction in this process is still ***,we reported the single-cell voltammetric imaging of Shewanella oneidensis MR-1 at the single-cell level to elucidate the metal-enhanced EET mechanism in vivo by the Fermi level-responsive graphene *** oxidation currents of~20 fA were observed from single native cells and gold nanoparticle(AuNP)-coated cells in linear sweep voltammetry *** the contrary,the oxidation potential was reduced by up to 100 mV after AuNP *** revealed the mechanism of AuNP-catalyzed direct EET decreasing the oxidation barrier between the outer membrane cytochromes and the *** method offered a promising strategy to understand the nanomaterials/bacteria interaction and guide the rational construction of EET-related microbial fuel cells.

关键词： Fermi voltammetry Electron

Airgap-harmonic-oriented Partitioned Design Method of PMV Motor with Improved Torque Performances

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CES Transactions on Electrical Machines and Systems 2024年第1期8卷 43-50页

作者： Zhaopeng Wu Li Quan zixuan Xiang Deyang Fan Tengguang Wang Xiaoyong zhu the School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013China IEEE

Here,we introduce a partitioned design method that is oriented toward airgap harmonic for permanent magnet vernier(PMV)*** method proposes the utilization of airgap flux harmonics as an effective bridge between the torque design region and the torque *** illustrate the efficacy of this method,a partitioned design PMV motor is presented and compared with the initial ***,the torque design region of the rotor is artfully divided into the torque enhancement region and ripple reduction ***,the main harmonics that generate output torque are chosen and enhanced,***,the harmonics that generate torque ripple are selected and reduced based on torque harmonics ***,the functions of the partitioned PMV motor torque are assessed based on the finite element *** the purposeful design of these two regions,the output torque is strengthened while torque ripple is inhibited effectively,verifying the effectiveness and reasonability of the proposed design method.

关键词： Permanent magnet vernier(PMV)motor Airgap flux harmonic Partitioned design Low torque ripple

Orbital-regulated interfacial electronic coupling endows Ni3N with superior catalytic surface for hydrogen evolution reaction

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Science China Chemistry 2020年第11期63卷 1563-1569页

作者： Yanyan Fang Da Sun Shuwen Niu Jinyan Cai Yipeng Zang Yishang Wu Linqin zhu Yufang Xie Yun Liu zixuan zhu Amirabbas Mosallanezhad Di Niu Zheng Lu Junjie Shi Xiaojing Liu Dewei Rao Gongming Wang Yitai Qian Hefei National Laboratory for Physical Science at the Microscale Department of ChemistryUniversity of Science&Technology of ChinaHefei 230026China School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China

The interstitial structure and weak Ni-N interaction of Ni3N lead to high unoccupied d orbital energy and unsuitable orbital orientation,which consequently results in weak orbital coupling with H2O and slow water dissociation kinetics for alkaline hydrogen evolution ***,we successfully lower the unoccupied d orbital energy of Ni3N to strengthen the interfacial electronic coupling by employing the strong electron pulling capability of oxygen *** prepared O-Ni3N catalyst delivers an overpotential of 55 mV at 10 mA cm−2,very close to the commercial Pt/*** structural characterization indicates the oxygen incorporation can decrease the electron densities around the Ni ***,density functional theory calculation further proves the oxygen incorporation can create more unoccupied orbitals with lower energy and superior orientation for water adsorption and *** concept of orbital-regulated interfacial electronic coupling could offer a unique approach for the rational design of hydrogen evolution catalysts and beyond.

关键词： hydrogen evolution reaction orbital regulation interfacial electronic coupling Ni3N electrocatalysts

Tailoring the adsorption behavior of superoxide intermediates on nickel carbide enables high-rate Li-O_(2) batteries

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eScience 2022年第4期2卷 389-398页

作者： Yun Liu Jinyan Cai Jianbin Zhou Yipeng Zang Xusheng Zheng zixuan zhu Bo Liu Gongming Wang Yitai Qian Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science&Technology of ChinaHefeiAnhui230026PR China National Synchrotron Radiation Laboratory University of Science&Technology of ChinaHefei230029PR China

Probing the relationship between the adsorption of superoxide species and the kinetics of Li-O_(2) chemistry is critical for designing superior oxygen electrodes for the Li-O_(2) battery,yet the modulation essence,especially at the atomic level,remains little ***,we reveal that the adsorption behaviors of superoxide species can be effectively regulated via a core-induced interfacial charge interaction,and we find that moderate adsorption strength can enable superior rate capability in a Li-O_(2) *** importantly,operando X-ray absorption near-edge structure and surface-enhanced Raman spectroscopy provide tools to monitor in situ the evolution of the superoxide intermediates and the electronic states of the catalyst's metal sites during the discharge and charge processes,and correlate these with the surface adsorption *** concept of tuning adsorption behavior through interfacial charge engineering could open up new opportunities to further advance the development of the Li-O_(2) battery and beyond.

关键词： Superoxide intermediates Adsorption behaviors Nickel carbide Rate capability Li-O_(2)batteries

The actin motor protein OsMYA1 associates with OsExo70H1 and contributes to rice secretory defense by modulating OsSyp121 distribution

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Journal of Integrative Plant Biology 2024年第9期66卷 2058-2075页

作者： Yuan‐Bao Li Chengyu Liu Ningning Shen Shuai zhu Xianya Deng zixuan Liu Li‐Bo Han Dingzhong Tang State Key Laboratory of Ecological Control of Fujian‐Taiwan Crop Pests Key Laboratory of Ministry of Education for GeneticsBreeding and Multiple Utilization of CropsPlant Immunity CenterFujian Agriculture and Forestry UniversityFuzhou 350002China College of Agriculture Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Future Technology Fujian Agriculture and Forestry UniversityFuzhou 350002China

Magnaporthe oryzae(***)is a devastating hemibiotrophic *** biotrophic invasive hyphae(IH)are enclosed in the extrainvasive hyphal membrane produced by plant cells,thus generating a front line of the battlefield between the pathogen and the host *** plants,defense-related complexes such as proteins,callose-rich materials and vesicles,are directionally secreted to this interface to confer defense responses,but the underlying molecular mechanism is poorly *** this study,we found that a Myosin gene,Myosin A1(OsMYA1),contributed to rice *** OsMYA1 knockout mutant exhibited decreased resistance to *** ***1 localizes to the actin cytoskeleton and surrounds the IH of ***1 interacts with an exocyst subunit,OsExo70H1,and regulates its accumulation at the plasma membrane(PM)and pathogen–plant ***,OsExo70H1 interacted with the rice syntaxin of the plants121 protein(OsSyp121),and the distribution of OsSyp121 to the PM or the pathogen–plant interface was disrupted in both the OsMYA1 and OsExo70H1 ***,these results not only reveal a new function of OsMYA1 in rice blast resistance,but also uncover a molecular mechanism by which plants regulate defense against *** by OsMYA1-initiated vesicle secretory pathway,which originates from the actin cytoskeleton to the PM.

关键词： cytoskeleton plant defense mechanism rice blast vesicle delivery