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SusMat 2023年第2期3卷 180-206页

作者： Xiao Wang chenglin Sun Zhong-shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina

Zinc-based batteries are a very promising class of next-generation electrochemical energy storage systems,with high safety,eco-friendliness,abundant resources,and the absence of rigorous manufacturing ***,practical applications of zinc-based rechargeable batteries are impeded by the low Coulombic efficiency,inferior cyclability,and poor rate capability,due to the instability of zinc ***,effective strategies for dendritefree zinc anode are symmetrically reviewed,especially highlighting specific mechanisms,delicate design of electrode and current collectors,controlled electrode|electrolyte interface,ameliorative electrolytes,and advanced separators ***,the particular mechanisms of dendrites formation and the associated fundamentals of the stable Zn metal anodes are presented ***,recent key strategies for dendrites prevention and hydrogen evolution reaction suppression are categorized,discussed,and analyzed in detail in view of the electrodes,electrolytes,and ***,the challenging perspectives and major directions of stable zinc anodes are briefly discussed for further industrialization and commercialization of zinc-based rechargeable batteries.

关键词： dendrite-free mechanisms zinc anode zinc ion batteries

Arbitrary amplitude femtosecond pulse shaping via a digital micromirror device

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Journal of Innovative Optical Health Sciences 2019年第1期12卷 14-21页

作者： chenglin Gu Dapeng Zhang Yina Chang Shih-Chi Chen State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 P.R.China Department of Mechanical and Automation Engineering The Chinese University of Hong Kong ShatinN.T.Hong Kong SARP.R.China

An ultrafast spectrum programmable femtosecond laser may enhance the performance of a wide variety of scientific applications,e.g.,multi-photon *** this paper,we report a digital micromirror device(DMD)-based ultrafast pulse shaper,i.e.,DUPS,for femtosecond laser arbitrary amplitude shaping-the first time a programmable binary device reported to shape the amplitudes of ultrafast pulses spectrum at up to 32 kHz rate over a broad wavelength *** DUPS is highly effcient,compact,and low cost based on the use of a DMD in combination with a transmission *** and temporal dispersion introduced by the DUPS is compensated by a quasi-4-f setup and a grating pair,*** pulses with arbitrary spectrum shapes,including rectangular,sawtooth,triangular,double-pulse,and exponential profile,have been demonstrated in our experiments.A feedback operation process is implemented in the DUPS to ensure a robust and repeatable shaping *** total effciency of the DUPS for amplitude shaping is measured to be 27%.

关键词： Spectrum shaping ultrafast laser digital micromirror device

A model-based driving cycle test procedure of electric vehicle batteries

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High Technology Letters 2014年第3期20卷 308-314页

作者：李勇 Wang Lifang Liao chenglin Wang Liye Key Laboratory of Power Electronics and Electric Drive Institute of Electrical EngineeringChinese Academy of Sciences University of Chinese Academy of Sciences

The battery test methods are the key issues to investigate the energy-storage characteristics and dynamic characteristics of electric vehicle(EV) *** this paper,the research advances of existing battery test methods as well as driving cycles are *** electric vehicle model that consists of EV dynamics model,battery model and electric motor model is *** dynamic characteristics of the battery in frequency domain are *** on the EV model and the frequency domain characteristics of the battery,a driving cycle test procedure of EV battery is *** battery test procedure is able to reflect the real-world characteristics of EV batteries,and can be used as a universal EV battery test method.

关键词： battery test methods lithium-ion battery electric vehicle (EV) model driving cycles

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锗锡浓度对硅锗锡合金性能影响的研究

原子与分子物理学报 2025年第5期42卷 163-174页

作者：顾永顺温淑敏内蒙古工业大学理学院呼和浩特010051

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体... 详细信息

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体Si_(96)与五组掺杂模型Si_(92)Ge_(2)Sn_(2)、Si_(88)Ge_(4)Sn_(4)、Si_(84)Ge_(6)Sn_(6)、Si_(80)Ge_(8)Sn_(8)、Si_(76)Ge_(10)Sn_(10)的电子结构及光学性质.通过对计算结果的分析可知,Ge,Sn的加入使得Si材料的带隙宽度减小,并且发生了由间接带隙向直接带隙的转变;Ge,Sn浓度最高的SiGeSn合金的形成能相对较高,稳定性相较于Ge,Sn含量低的材料较差;随着Ge,Sn掺杂浓度的提高,电子态密度图显示出越来越明显的杂化现象,并且态密度的峰值主要有Si原子的s轨道提供;Ge,Sn浓度的提高还使得SiGeSn合金的吸收系数在可见光及近红外区域内增加、反射率在可见光及以上波段范围内提高、折射率变低、消光系数曲线向红外区域移动等光学性质变化,表明可以通过调节Ge,Sn浓度来获得合适的光学特性,这为SiGeSn半导体在红外区域光电材料和器件的应用上提供了研究方向.

关键词： SiGeSn 电子特性光学性质

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Deciphering engineering principle of three-phase interface for advanced gas-involved electrochemical reactions

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Journal of Energy Chemistry 2023年第5期80卷 302-323,I0008页

作者： Yanzheng He Sisi Liu Mengfan Wang Qiyang Cheng Tao Qian chenglin Yan Collaborative Innovation Center of Suzhou Nano Science and Technology College of EnergySoochow UniversitySuzhou 215006JiangsuChina School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019JiangsuChina Light Industry Institute of Electrochemical Power Sources Suzhou 215600JiangsuChina

As an alternative to conventional energy conversion and storage reactions,gas-involved electrochemical reactions,including the carbon dioxide reduction reaction(CO_(2)RR),nitrogen reduction reaction(NRR)and hydrogen evolution reaction(HER),have become an emerging research direction and have gained increasing attention due to their advantages of environmental friendliness and *** studies have been designed to accelerate sluggish kinetics but with limited *** of them promote the reaction by modulating the intrinsic properties of the catalyst,ignoring the synergistic effect of the reaction as a *** to the introduction of gas,traditional liquid-solid two-phase reactions are no longer applicable to future *** gas-involved electrochemical reactions mostly occur at the junctions of gaseous reactants,liquid electrolytes and solid catalysts,the focus of future research on reaction kinetics should gradually shift to three-phase reaction *** this review,we briefly introduce the formation and constraints of the three-phase interface and propose three criteria to judge its merit,namely,the active site,mass diffusion and electron mass ***,a series of modulation methods and relevant works are discussed in detail from the three improvement directions of‘exposing more active sites,promoting mass diffusion and accelerating electron transfer’.Definitively,we provide farsighted insights into the understanding and research of three-phase interfaces in the future and point out the possible development direction of future regulatory methods,hoping that this review can broaden the future applications of the three-phase interface,including but not limited to gas-involved electrochemical reactions.

关键词： Three-phase reaction Surface reactions Mass diffusion Electron transfer Gas-involved electrochemical reactions

Insight into the reaction mechanism of sulfur chains adjustable polymer cathode for high-loading lithium-organosulfur batteries

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Journal of Energy Chemistry 2021年第5期30卷 238-244页

作者： Jinqiu Zhou Xi Zhou Yawen Sun Xiaowei Shen Tao Qian chenglin Yan Soochow Institute for Energy and Materials Innovations College of EnergyKey Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006JiangsuChina Institute of Chemical Industry of Forestry Products Chinese Academy of ForestryNanjing 210042JiangsuChina

Small molecules with adjustable sulfur atoms in the confined structure were acted as precursor for the synthesis of polymer cathodes for lithium-organosulfur *** them,poly(diallyl tetrasulfide)(PDATtS)delivered a high capacity of 700 mAh g^(-1),stable capacity retention of 85%after 300 cycles,high areal capacity~4 m Ah cm^(-2) for electrode with up to 10.3 mg cm^(-2) *** insight into the reaction mechanism of PDATtS electrode that radicals arisen from the homolytic cleavage of S-S bond in PDATtS reacted with Li+to generate thiolates(RSLi)and insoluble lithium sulfides(Li_(2)S)or lithium disulfide(Li_(2)S_(2))was clearly verified by in-situ UV/Vis spectroscopy,nuclear magnetic resonance(NMR)studies and density-functional theory(DFT)***,based on the unique reaction mechanism,problems of rapid capacity fading due to the formation of soluble polysulfide intermediates and their serious shuttle effect in conventional lithium-sulfur(Li-S)batteries was totally avoided,realizing the dendrite-free lithium sulfur *** study sets new trends for avenues of further research to advance Li-S battery technologies.

关键词： Lithium-sulfur battery Organosulfur polymer Adjustable sulfur chains Cathode material

OPTIMAL DISTRIBUTED FUSION ALGORITHM WITH ONE-STEP OUT-OF-SEQUENCE ESTIMATES

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Journal of Electronics(China) 2008年第4期25卷 529-538页

作者： Ge Quanbo Wen chenglin College of Automation Hangzhou Dianzi University Hangzhou 310018 China

The transmission modes of multi-hop and broadcasting for Wireless Sensor Networks(WSN)often make random and unknown transmission delays appear,so multisensor data fusion based ondelayed systems attracts intense attention from lots of *** existing achievements for thedelayed fusion all focus on Out-Of-Sequence Measurements(OOSM)problem which has many dis-advantages such as high communication cost,low computational efficiency,huge computational com-plexity and storage requirement,bad real-time performance and so *** order to overcome theseproblems occurred in the OOSM fusion,the Out-Of-Sequence Estimates(OOSE)are considered tosolve the delayed fusion for the first *** from OOSM which belongs to the centralized fusion,the OOSE scheme transmits local estimates from local sensors to the central processor and is thus thedistributed fusion;thereby,the OOSE fusion can not only avoid the problems suffered in the OOSMfusion but also make the design of fusion algorithm highly simple and ***,a novel optimallinear recursive prediction weighted fusion method is proposed for one-step OOSE problem in this *** a tradeoff,its fusion accuracy is slightly lower than that of the OOSM method because the currentOOSM fusion is a smooth estimate and OOSE gets a prediction ***,the smooth result of theOOSE problem also has good fusion *** analysis and computer simulation show thatthe total performance of the proposed one-step OOSE fusion algorithm is better than the current one-step OOSM fusion in the practical tracking systems.

关键词： Sensor networks Distributed fusion One-step delay Kalman filtering Out-Of-Sequence Measurements (OOSM) Out-Of-Sequence Estimates (OOSE)

Altering the rate-determining step over cobalt single clusters leading to highly efficient ammonia synthesis

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National Science Review 2021年第5期8卷 110-118页

作者： Sisi Liu Mengfan Wang Haoqing Ji Xiaowei Shen chenglin Yan Tao Qian College of Energy Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow University

Activation of high-energy triple-bonds of N2is the most significant bottleneck of ammonia synthesis under ambient conditions. Here, by importing cobalt single clusters as strong electron-donating promoter into the catalyst, the rate-determining step of ammonia synthesis is altered to the subsequent proton addition so that the barrier of N2dissociation can be successfully overcome. As revealed by density functional theory calculations, the N2dissociation becomes exothermic over the cobalt single cluster upon the strong electron backdonation from metal to the N2antibonding orbitals. The energy barrier of the positively shifted rate-determining step is also greatly reduced. At the same time, advanced sampling molecular dynamics simulations indicate a barrier-less process of the N2approaching the active sites that greatly facilitates the mass transfer. With suitable thermodynamic and dynamic property, a high ammonia yield rate of 76.2 μg h–1mgcat–*** superior Faradaic efficiency of 52.9% were simultaneously achieved.

关键词： nitrogen reduction reaction rate-determining step cobalt single cluster mass transfer molecular dynamics simulations

RANDOM SETS: A UNIFIED FRAMEWORK FOR MULTISOURCE INFORMATION FUSION

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Journal of Electronics(China) 2009年第6期26卷 723-730页

作者： Xu Xiaobin Wen chenglin School of Automation Hangzhou Dianzi University Hangzhou 310018 China

The more diverse the ways and means of information acquisition are,the more complex and various the types of information are. The qualities of available information are usually uncertain,vague,imprecise,incomplete,and so on. However,the information is modeled and fused traditionally in particular,name some of the known theories: evidential,fuzzy sets,possibilistic,rough sets or conditional events,etc. For several years,researchers have explored the unification of theories enabling the fusion of multisource information and have finally considered random set theory as a powerful mathematical tool. This paper attempts to overall review the close relationships between random set theory and other theories,and introduce recent research results which present how different types of information can be dealt with in this unified framework. Finally,some possible future directions are discussed.

关键词： Multisource information fusion Random set theory Imperfect information

Retailers'incentives for green investment in differentiated competition channels

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Journal of Management Science and Engineering 2023年第4期8卷 465-489页

作者： Xinxin Zhang Junran Huang chenglin Shen School of Management Tianjin University of TechnologyTianjin300384China School of Economics and Management Tiangong UniversityTianjin300387China

With increasing public environmental awareness,green activities in retail and distribution processes have become crucial tools for retailers to boost demand and enhance *** study develops an analytical model to study the green investment choices of two differentiated retailers dealing with a common green *** also explores the impacts of these investment choices on the manufacturer's operational decisions,channel efficiency,consumer welfare,and the *** derive three main ***,the powerful retailer always favors green investments,whereas the less powerful(inferior)retailer may either prefer or avoid green *** fiercer the interretailer competition,the lower the willingness of the inferior retailer to introduce green ***,although all supply chain parties may disagree on their preferences for retailers'green investments,a bilateral green investment(i.e.,both retailers make green investments)can reach an incentive alignment for all firms if the differentiation between retailers is low enough and the competition between them is not substantially ***,a bilateral green investment improves consumer welfare and channel efficiency because of the great demand expansion and double marginalization ***,the retailers'green investments can motivate the manufacturer to produce greener products,but they do not necessarily benefit the *** show that the supply chain's economic sustainability aligns with its environmental sustainability only if the environmental improvement efficiency of green investments is substantially *** further examine the impact of retailers with differentiated green investment abilities and the manufacturer's green investment efficiency to verify the robustness of the main results.

关键词： Green supply chain Retailergreen investment Differentiated retailers Channel competition