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Recent developments in three-dimensional Zn metal anodes for battery applications

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InfoMat 2024年第1期6卷 1-30页

作者： jianyu chen Yizhou Wang Zhengnan Tian Jin Zhao Yanwen Ma Husam N.Alshareef State Key Laboratory of Organic Electronics and Information Displays(KLOEID)and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&Telecommunications(NUPT)Nanjingthe People's Republic of China Materials Science and Engineering King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia Suzhou Vocational Institute of Industrial Technology Suzhouthe People's Republic of China

Aqueous zinc(Zn)ion batteries(AZIBs)are regarded as one of the promising candidates for next-generation electrochemical energy storage systems due to their low cost,high safety,and environmental ***,the commercialization of AZIBs has been severely restricted by the growth of dendrite at the Zn metal *** the planar-structured Zn anodes into threedimensional(3D)structures has proven to be an effective way to modulate the plating/stripping behavior of Zn anodes,resulting in the suppression of dendrite *** review provides an up-to-date review of 3D structured Zn metal anodes,including working principles,design,current status,and future *** aim to give the readers a comprehensive understanding of 3D-structured Zn anodes and their effective usage to enhance AZIB performance.

关键词： 3D metal anodes aqueous Zn ion batteries dendrite suppression Zn dendrite Zn metal anodes

Water quality prediction of copper-molybdenum miningbeneficiation wastewater based on the PSO-SVR model

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Frontiers of Environmental Science & Engineering 2023年第8期17卷 81-94页

作者： Xiaohua Fu Qingxing Zheng Guomin Jiang Kallol Roy Lei Huang Chang Liu Kun Li Honglei chen Xinyu Song jianyu chen Zhenxing Wang Ecological Environment Management and Assessment Center Central South University of Forestry and TechnologyChangsha 410004China State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control South China Institute of Environmental SciencesMinistry of Ecology and EnvironmentGuangzhou 510655China Chinese Non-Ferrous Industrial Engineering Center of Pollution Control Technology&Equipment Science Environment Protection Co.Ltd.Changsha 410036China Institute of Computer Science University of TartuTartu 51009Estonia School of Environmental Science and Engineering Guangzhou UniversityGuangzhou 510006China A.B Freeman School of Business Tulane UniversityNew OrleansLA 70118USA Guangzhou Huacai Environmental Protection Technology Co. Ltd.Guangzhou 511480China

The mining-beneficiation wastewater treatment is highly complex and *** factors like influent quality,flow rate,pH and chemical dose,tend to restrict the effluent effectiveness of miningbeneficiation wastewater *** oxygen demand(COD)is a crucial indicator to measure the quality of mining-beneficiation *** COD concentration accurately of miningbeneficiation wastewater after treatment is essential for achieving stable and compliant *** reduces environmental risk and significantly improves the discharge quality of *** paper presents a novel AI algorithm PSO-SVR,to predict water *** optimization of our proposed model PSO-SVR,uses particle swarm optimization to improve support vector regression for COD *** generalization capacity tested on out-of-distribution(OOD)data for our PSOSVR model is strong,with the following performance metrics of root means square error(RMSE)is 1.51,mean absolute error(MAE)is 1.26,and the coefficient of determination(R2)is *** compare the performance of PSO-SVR model with back propagation neural network(BPNN)and radial basis function neural network(RBFNN)and shows it edges over in terms of the performance metrics of RMSE,MAE and R2,and is the best model for COD prediction of mining-beneficiation *** is because of the less overfitting tendency of PSO-SVR compared with neural network *** proposed PSO-SVR model is optimum for the prediction of COD in copper-molybdenum mining-beneficiation wastewater *** addition,PSO-SVR can be used to predict COD on a wide variety of wastewater through the process of transfer learning.

关键词： Chemical oxygen demand Mining-beneficiation wastewater treatment Particle swarm optimization Support vector regression Artificial neural network

Solution-processed copper nanowire flexible transparent electrodes with PEDOT：PSS as binder, protector and oxide-layer scavenger for polymer solar cells

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Nano Research 2015年第3期8卷 1017-1025页

作者： jianyu chen Weixin Zhou Jun chen Yong Fan Ziqiang Zhang Zhendong Huang Xiaomiao Feng Baoxiu Mi Yaowen Ma Wei Huang Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications (NUPT) Nanjing 210046 China jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials Nanjing Tech University Nanjing 211816 China

The easy oxidation and surface roughness of Cu nanowire （NW） films are the main bottlenecks for their usage in transparent conductive electrodes （TCEs）. Herein, we have developed a facile and scaled-up solution route to prepare Cu NW-based TCEs by embedding Cu NWs into pre-coated smooth poly（3,4-ethylenedioxythiophene）：poly（styrenesulfonate）（PEDOT：PSS） films on poly（ethylene terephthalate）（PET） substrates. The so obtained Cu NW- PEDOT：PSS/PET films have low surface roughness （-70 nm in height）, high stability toward oxidation and good flexibility. The optimal TCEs show a typical sheet resistance of 15Ω·sq-1 at high transparency （76% at A = 550 nm） and have been used successfully to make polymer （poly（3-hexylthiophene）：phenyl-C61- butyric acid methyl ester） solar cells, giving an efficiency of 1.4%. The overall properties of Cu NW-PEDOT：PSS/PET films demonstrate their potential application as a replacement for indium tin oxide in flexible solar cells.

关键词： copper nanowires poly-(3 4-ethylenedioxythiophene)poly(styrenesulfonate)films flexible transparentelectrodes solution processing organic photovoltaics

Study on electrothermally actuated cantilever array for nanolithography

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Science China(Technological Sciences) 2010年第5期53卷 1184-1189页

作者： FU jianyu,chen DaPeng & YE TianChun Integrated Circuit Advanced Process Center,Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China Integrated Circuit Advanced Process Center Institute of Microelectronics Chinese Academy of Sciences Beijing China

Nanolithography is a patterning technique for the fabrication of nano-scale structures.A promising method of nanolithography known as scanning probe lithography has particularly extensive applications for its high resolution,high reliability,and simple *** this paper,a novel electrothermally actuated cantilever with integrated heater,thermal conductor and actuator for scanning probe lithography is *** are designed in an 8×4 *** models are presented to simulate the temperature distribution,deflection and thermal crosstalk of the cantilever *** structure is successfully *** is demonstrated that this structure can produce a tip deflection of 16.9 μm at an actuation current of 5.5 mA and the thermal crosstalk between the cantilevers is neglected.

关键词： nanolithography scanning probe lithography electrothermal actuation

Lithiophilic hyperbranched Cu nanostructure for stable Li metal anodes

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SmartMat 2023年第3期4卷 96-107页

作者： jianyu chen Xin Qiao Wei Fu Xuran Han Qiang Wu Yizhou Wang Yu Zhang Li Shi Jin Zhao Yanwen Ma State Key Laboratory for Organic Electronics and Information Displays(KLOEID)&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&TelecommunicationsNanjingChina Materials Science and Engineering King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia New Energy Technology Engineering Lab of Jiangsu Province School of ScienceNanjing University of Posts&TelecommunicationsNanjingChina Suzhou Vocational Institute of Industrial Technology SuzhouChina

Porous copper(Cu)current collectors are regarded as a promising host for stabilizing lithium(Li)metal anodes but suffer from uncontrollable Li metal deposition due to the intrinsic lithiophobic nature of *** study proposes a vertically aligned Cu host with hyperbranched CuxO nanostructure to provide lithiophilic nucleation sites for homogeneous Li metal ***,the vertically aligned Cu nanostructure dramatically reduces the local current density and brings homogeneous Li‐ion *** lithiophilic hyperbranched CuxO nanostructure with a low nucleation barrier could induce homogeneous Li nucleation and *** a result,the Cu@CuxO nanostructured host exhibits a low nucleation overpotential of 44.3 mV and achieves highly electrochemical reversibility with high Coulombic efficiency of 98.33%in a half‐*** Cu@CuxO nanostructured electrode is capable of working under different current densities varying from 0.5 to 5 mA/cm2 in a symmetric *** assembled full cell coupling of the Li/Cu@CuxO composite anode with the LiFePO4 cathode manifests stable long‐term cycling life at 1 *** study elaborates on the synergistic effect of electrode structure design and interfacial chemistry modification to regulate the Li deposition/dissolution behavior,thus exhibiting remarkable electrochemical performances for next‐generation Li‐metal batteries.

关键词： current collector Li metal anode lithiophilicity low nucleation overpotential vertically aligned structure

从制度结构视角审视美国霸权与碎片化贸易的关系

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国际商务（对外经济贸易大学学报） 2017年第1期 16-27页

作者：陈剑煜北京大学国际关系学院北京100871

20世纪80年代后,美国开始将贸易政策转向区域层面,对碎片化制度持有一种包容和参与的态度。本文为研究美国霸权与碎片化制度之间的关系,首先介绍了美国的贸易政策在空间范围上发生转向的历史进程。此后,本文从传统的贸易理论和制度霸权... 详细信息

20世纪80年代后,美国开始将贸易政策转向区域层面,对碎片化制度持有一种包容和参与的态度。本文为研究美国霸权与碎片化制度之间的关系,首先介绍了美国的贸易政策在空间范围上发生转向的历史进程。此后,本文从传统的贸易理论和制度霸权理论,分析了美国产生制度偏好的原因。本文从霸权贸易制度内、制度外和制度间层次三个角度,分析了美国和碎片化贸易制度之间的关系。最后,本文就制度内层次继续发掘,发现了美国贸易偏好的社会根源,阐述了霸权偏好背后的利益集团因素及对霸权可能的削弱作用。总而言之,美国霸权与碎片化贸易制度的关系本质上就是制度霸权与区域层面贸易公共物品的关系,这种关系在制度内受到霸权国制度供给能力、意愿、利益诉求和利益集团的影响,在制度外受到全球层面和区域层面其他贸易制度的影响,在制度之间受到追赶国实力和地位的影响,因此美国的制度霸权对碎片化贸易制度采取了有限包容和参与的态度。

关键词：美国霸权贸易制度区域贸易碎片化

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高负荷条件下膜反应器污水处理实验研究

工业水处理 2005年第11期25卷 19-22页

作者：谌建宇国家环境保护总局华南环境科学研究所广东广州510655

总结分析了在各种负荷条件下悬浮载体生物膜型反应器的试验结果。研究表明:悬浮生物膜反应器MBR应用于污水处理是完全可行的,它具有有机负荷高、处理效果优、耐冲击负荷能力强、占地面积少等优点;在悬浮填料投加率为30%时,对于CODCr≤25... 详细信息

总结分析了在各种负荷条件下悬浮载体生物膜型反应器的试验结果。研究表明:悬浮生物膜反应器MBR应用于污水处理是完全可行的,它具有有机负荷高、处理效果优、耐冲击负荷能力强、占地面积少等优点;在悬浮填料投加率为30%时,对于CODCr≤2500mg/L的废水处理效果可达到废水回用标准。

关键词：膜反应器悬浮填料微滤膜

优秀青年科学基金项目绩效评价及其影响因素——基于项目负责人视角的实证研究

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中国科技论坛 2023年第6期 63-74页

作者：陈建俞上海健康医学院健康与公共卫生学院上海201318 上海交通大学医学院虹桥国际医学研究院上海200336

科技人才是创新驱动发展的核心力量,科学基金人才项目资助成效是不同利益相关者共同关注的重要议题。本文采用问卷调查,从优秀青年科学基金项目负责人的视角,对优秀青年科学基金项目绩效进行结果性评价,并对优秀青年科学基金项目负责人... 详细信息

科技人才是创新驱动发展的核心力量,科学基金人才项目资助成效是不同利益相关者共同关注的重要议题。本文采用问卷调查,从优秀青年科学基金项目负责人的视角,对优秀青年科学基金项目绩效进行结果性评价,并对优秀青年科学基金项目负责人特征与项目绩效的相互关系进行探讨。研究结果表明:优秀青年科学基金项目对项目负责人的研究成果质量、学科建设发展、研究团队建设、国际合作交流、职业生涯发展、社会经济影响等方面有着明显的促进作用;项目负责人的性别、年龄、职位类别、技术职称、工作年限、学科领域6个特征对项目绩效评价均有影响,海外经历对项目绩效评价没有影响。

关键词：优秀青年科学基金项目项目负责人项目绩效绩效评价

Establishment of a hyperspectral evaluation model of ocean color satellite-measured reflectance

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Science China(Information Sciences) 2010年第9期53卷 1891-1902页

作者： MAO ZhiHua*,chen jianyu,HUANG HaiQing,HE XianQiang & GONG Fang State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography State Oceanic Administration Hangzhou China

The accuracy of the satellite-measured reflectance is a key question for data processing and oceanographic applications.A hyperspectral satellite remote sensing reflectance evaluation model(HRSREM) was developed to evaluate the accuracy of the satellite measured *** model can compute the total reflectance at the top of the atmosphere(TOA) according to observation conditions of satellites,based on a radiative transfer model with the consideration of multiple scattering effects and atmospheric absorption *** performance of the HRSREM model was examined by Gordon’s algorithms,showing that the relative errors of the Rayleigh scattering reflectance and the aerosol scattering reflectance are less than 2%.The model can also compute the sky reflectance which can be validated by in-situ *** two sky reflectances match well with a spectral average error of 5.4%.The relative error of the total reflectance of the model,verified by sea-viewing wide field-of-view sensor(SeaWiFS) data,is about 3.5%.Therefore,the total reflectances at TOA,computed by the model,can be taken as reference values to evaluate the accuracy of satellite *** model was used to evaluate the accuracy of the hypersptral satellite(Hyperion) remote sensing *** Hyperion reflectance matches the total reflectance of HRSREM very well at visible and near-infrared bands with an average error of 7.3%,while the status of calibration coefficients at shortwave infrared bands are not stable with a large spectral average error of 63.5%.The reflectance evaluation of a moderate resolution imaging spectrometer(CMODIS) data indicated that relative errors are large,especially at near-infrared bands with relative errors more than 100%.The calibration coefficients of CMODIS,obtained from laboratory measurements,are not *** CMODIS data should be recalibrated for oceanographic *** performance of the HRSREM model is effective in evaluating satellite data and its

关键词： hyperspectral remote sensing CMODIS reflectance evaluation satellite ocean color