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Achieving high-capacity and long-life K^(+)storage enabled by constructing yolk-shell Sb_(2)S_(3)@N,S-doped carbon nanorod anodes

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Journal of Energy Chemistry 2023年第1期76卷 547-556,I0014页

作者： Bensheng Xiao Hehe Zhang Zhefei Sun Miao Li Yingzhu Fan Haichen Lin Haodong Liu Bing Jiang Yanbin Shen ming-sheng wang Meicheng Li Qiaobao Zhang Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005FujianChina Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials(Xiamen University) Xiamen 361005FujianChina Department of Nanoengineering University of California San DiegoLa JollaCA92093United States State Key Laboratory of Altermate Electrical Power System with Renewable Energy Sources Schoolof New EnergyNorth China Electric Power UniversityBeijing 102206China i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123JiangsuChina

As promising anode candidates for potassium-ion batteries(PIBs),antimony sulfide(Sb_(2)S_(3))possesses high specific capacity but suffers from massive volume expansion and sluggish kinetics due to the large K^(+)insertion,resulting in inferior cycling and rate *** address these challenges,a yolk-shell structured Sb_(2)S_(3)confined in N,S co-doped hollow carbon nanorod(YS-Sb_(2)S_(3)@NSC)working as a viable anode for PIBs is *** directly verified by in situ transmission electron microscopy(TEM),the buffer space between the Sb_(2)S_(3)core and thin carbon shell can effectively accommodate the large expansion stress of Sb_(2)S_(3)without cracking the shell and the carbon shell can accelerate electron transport and K^(+)diffusion,which plays a significant role in reinforcing the structural stability and facilitating charge *** a result,the YS-Sb_(2)S_(3)@NSC electrode delivers a high reversible K^(+)storage capacity of 594.58 m A h g^(-1)at 0.1 A g^(-1)and a long cycle life with a slight capacity degradation(0.01%per cycle)for 2000 cycles at 1 A g^(-1)while maintaining outstanding rate ***,utilizing in in situ/ex situ microscopic and spectroscopic characterizations,the origins of performance enhancement and K^(+)storage mechanism of Sb_(2)S_(3)were clearly *** work provides valuable insights into the rational design of high-performance and durable transition metal sulfides-based anodes for PIBs.

关键词： Antimony sulfide Yolk-shell structure In situ TEM Potassium-ion batteries Super-stable cyclability

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In Situ TEM Measurements of the Mechanical Properties and Behavior of WS_(2)Nanotubes

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Nano Research 2008年第1期1卷 22-31页

作者： ming sheng wang Ifat Kaplan-Ashiri Xian Long Wei Rita Rosentsveig Hanoch Daniel Wagner Reshef Tenne Lian Mao Peng Key Laboratory on the Physics and Chemistry of Nanodevices and Department of Electronics Peking UniversityBeijing 100871China Department of Materials and Interfaces Weizmann Institute of ScienceRehovot 76100Israel

The mechanical properties of individual WS2 nanotubes were investigated and directly related to their atomic structure details by in situ transmission electron microscope measurements.A brittle mode deformation was observed in bending tests of short(ca.1μm in length)multilayer *** mode can be related to the atomic structure of their *** addition,longer nanotubes(67μm in length)were deformed in situ scanning electron microscope,but no plastic deformation was detected.A“sword-in-sheath”fracture mechanism was revealed in tensile loading of a nanotube,and the sliding of inner shells inside the outermost shell was imaged“on-line”.Furthermore,bending modulus of 217 GPa was obtained from measurements of the electric-fi eld-induced resonance of these nanotubes.

关键词： Inorganic nanotubes nanomechanics TEM SEM

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Evolutionary mechanism and frequency response of graphite electrode at extreme temperatures

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Nano Research 2024年第8期17卷 7283-7289页

作者： Shanpeng Pei Zhiyong Zhang Xiuli Zhang Yan Liu Xiang Han Linshan Luo Pengfei Su Chaofei Lan Wei Huang Ziqi Zhang ming-sheng wang Songyan Chen Department of Physics Xiamen UniversityXiamen 361005China Shandong Electric Power Engineering Consulting Institute Corporation Jinan 250031China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China School of Semiconductor Science and Technology South China Normal UniversityFoshan 528225China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China National Key Laboratory of Integrated Circuits and Microsystems Chongqing 400000China

The battery management system is employed to monitor the external temperature of the lithium-ion battery in order to detect any potential ***,this outside–in detection method often suffers from a lag and is therefore unable to accurately predict the battery’s real-time ***,an inside–out frequency response approach is used to accurately monitor the battery’s state at various temperatures in real-time and correlate it with the solid electrolyte interphase(SEI)evolution of the graphite *** SEI evolution at temperatures of−15,25,60,and 90℃exhibits certain regular characteristics with temperature *** a temperature of−15℃,the Li^(+)-solvent interaction of lithium-ion slowed down,resulting in a significant reduction in *** 25℃,a LiF-rich inorganic SEI was identified as forming,which facilitated lithium-ion ***,high temperatures would induce decomposition of lithium hexafluorophosphate(LiPF_(6))and lithium-ion *** the extreme temperature of 90℃,the SEI would be organic-rich,and Li_(x)P_(y)F_(z),a decomposition product of lithium salts,was further oxidized to Li_(x)PO_(y)F_(z),which led to a surge in the charge-transfer resistance at SEI(R_(sei))and a reduction in Coulombic efficiency(CE).This changing relationship can be recorded in real time from the inside out by electrochemical impedance spectroscopy(EIS)*** provides a new theoretical basis for the structural evolution of lithium-ion batteries and the regular characterization of EIS.

关键词： graphite electrode solid electrolyte interphase(SEI)film extreme temperatures frequency response evolutionary mechanism

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Tuning the electron transport behavior at Li/LATP interface for enhanced cyclability of solid-state Li batteries

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Nano Research 2023年第1期16卷 1634-1641页

作者： Linshan Luo Feng Zheng Haowen Gao Chaofei Lan Zhefei Sun Wei Huang Xiang Han Ziqi Zhang Pengfei Su Peng wang shengshi Guo Guangyang Lin Jianfang Xu Jianyuan wang Jun Li Cheng Li Qiaobao Zhang Shunqing Wu ming-sheng wang Songyan Chen Department of Physics Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DevicesKey Laboratory of Low Dimensional Condensed Matter Physics(Department of Education of Fujian Province)Jiujiang Research InstituteXiamen UniversityXiamen 361005China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China Western Digital Corporation 951 Sandisk DrMilpitasCA 95035USA

An interlayer is usually employed to tackle the interfacial instability issue between solid electrolytes(SEs)and Li metal caused by the side ***,the failure mechanism of the ionic conductor interlayers,especially the influence from electron penetration,remains largely ***,using Li1.3Al0.3Ti1.7(PO4)3(LATP)as the model SE and LiF as the interlayer,we use metal semiconductor contact barrier theory to reveal the failure origin of Li/LiF@LATP interface based on the calculation results of density functional theory(DFT),in which electrons can easily tunnel through the LiF grain boundary with F vacancies due to its narrow barrier width against electron injection,followed by the reduction of ***,an Al-LiF bilayer between Li/LATP is found to dramatically promote the interfacial stability,due to the highly increased barrier width and homogenized electric field at the ***,the Li symmetric cells with Al-LiF bilayer can exhibit excellent cyclability of more than 2,000 h superior to that interlayered by LiF monolayer(~860 h).Moreover,the Li/Al-LiF@LATP/LiFePO4 solid-state batteries deliver a capacity retention of 83.2%after 350 cycles at 0.5 *** findings emphasize the importance of tuning the electron transport behavior by optimizing the potential barrier for the interface design in high-performance solid-state batteries.

关键词： solid-state electrolyte Li metal LiF Al electron transport interfacial barrier

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Effect of Organic Ligands on Biological Availability of Inorganic Phosphorus in Soils

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Pedosphere 2004年第1期14卷 85-92页

作者： FENGKe LUHai-ming shengHai-Jun wangXiao-Li MAOJian AgriculturalCollege YangzhouUniversityYangzhou225009（China）

Citrate, oxalate, tartrate and malate were added into soils during the growthperiod of ryegrass to study the effect of different organic ligands on the release of variousinorganic P (Pi) fractions in a yellow-brown soil and a paddy soil. The results showed that oxalatewas most effective in promoting the release of total Pi in the yellow-brown soil and tartrate in thepaddy soil. The dominant Pi fractions released from the yellow-brown soil were calcium phosphate(Ca-P) and aluminum phosphate (Al-P) and those from the paddy soil were iron phosphate (Fe-P) andreductant soluble phosphate (O-P) mobilized by tartrate. Phosphorous-mobilizing capability oforganic acids in the yellow-brown soil revealed the following order: oxalate > citrate > malate >tartrate. In the paddy soil, the order was tartrate > citrate ≈ oxalate > malate. It wasdemonstrated that organic ligands were different in their capabilities of mobilizing Pi and the sameorganic ligand showed also a discrepancy in mobilizing P in different soils. Although the additionof organic ligands into soils could increase the amount of P taken up by ryegrass, the more uptakeof P, however, was not only due to the more release of Pi, but also partly from organic P. In manycases, organic ligands promoted the release of the total Pi, while different fractions showeddifferent trends: some increased and others decreased.

关键词： biological availability inorganic P release organic ligands ryegrass

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基于可调谐二极管激光技术利用小波去噪在2.008μm波段对δ13CO2的研究

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物理学报 2017年第2期66卷 132-140页

作者：牛明生王贵师曲阜师范大学激光研究所山东省激光偏光与信息技术重点实验室曲阜273165 中国科学院安徽光学精密机械研究所大气物理化学研究二室合肥230031

利用分布反馈式激光器和小型多通池建立了性能稳定的δ13CO2测量系统.基于可调谐二极管激光技术在2.008μm波段研究了几种常见的小波评价方法、评价能力与适用性,选出最佳小波函数Haar作为小波基进行分层.在最优层上采用VisuShrink阈值... 详细信息

利用分布反馈式激光器和小型多通池建立了性能稳定的δ13CO2测量系统.基于可调谐二极管激光技术在2.008μm波段研究了几种常见的小波评价方法、评价能力与适用性,选出最佳小波函数Haar作为小波基进行分层.在最优层上采用VisuShrink阈值函数对δ13CO2测量中的去噪效果和测量精度进行了研究.在相同实验条件下,对去噪前后δ13CO2的测量结果进行了比较,然后从理论上分析了去噪前后测量结果不一致的原因,确定利用小波去噪对测量结果的精确性.结果表明,利用小波去噪对δ13CO2的测量精度比不用小波去噪时提高了7.3倍.

关键词：同位素测量新型多通池小波去噪测量精度

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A Novel 1-D Inorganic–organic Hybrid Photochromic Compound Including Triazole

A Novel 1-D Inorganic–organic Hybrid Photochromic Compound ...

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中国化学会第七届全国结构化学学术会议

作者： Ning-Ning Zhang ming-sheng wang Guo-Cong Guo State Key Lab of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Photochromic compounds, characteristic of reversible change of colors and structures, have shown intriguing applications, such as photomask, radiation detection, and switch for optics. Recently, inorganic–organic hybrid photochromic materials, as an important member of photochromic family, stimulate intense research interests. In this work, we report a new photochromic coordination compound bearing triazole ligand, which generated radical signal after irradiation.

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Lanthanide-doped metal-organic frameworks with multicolor mechanoluminescence

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Science China Materials 2021年第4期64卷 931-941页

作者： Wenwei Chen Yixi Zhuang Changjian Chen Ying Lv ming-sheng wang Rong-Jun Xie College of Materials Xiamen UniversityXiamen 361005China Fujian Provincial Key Laboratory of Materials Genome Xiamen UniversityXiamen 361005China

Metal-organic frameworks(MOFs)and mechanoluminescent(ML)materials have been considered as two types of promising materials that have their own application *** would be amazing to endow one material with the advantages of ML and MOFs,thus broadening their ***,there are quite few investigations on this topic,and the ML mechanism in ML-MOFs remains *** this study,we proposed a strategy for developing ML-MOFs by doping lanthanide ions into the non-centrosymmetric SBD([Sr(μ-BDC)(DMF)]∞)MOF,and successfully synthesized a series of lanthanide-doped MOFs Ln-SBD(Ln=Tb,Dy,Sm,Eu)and Tb1-xEux-SBD(x=0.2,0.4,0.6,0.8)with multicolor *** lanthanide ions were uniformly distributed in the matrix of the SBD-MOF,and occupied the Sr *** MLMOFs exhibited intense multicolor ML emissions varying from green to yellow to red by changing the co-doping ratios and species of lanthanide *** similar ML and photoluminescence(PL)spectra indicated that the ML emission was assigned to the radiative transition from the excited states to the ground states of lanthanide *** radiative transition was induced by the electron bombardment process that originated from the piezoelectric effect of the non-centrosymmetric SBD *** addition,a pioneering temperature sensing research based on ML was carried out,which is promising for realizing dual-functional detection of stress and temperature without excitation light *** study gives a unique insight for developing more versatile and interesting smart materials by combining the versatility of MOF with the ML emission,imparting additional values to both MOF and ML ***,this study provides a general rule for selecting MOFs with an acentric structure as the host for ML materials.

关键词： metal-organic frameworks lanthanide-doped multicolor mechanoluminescence temperature sensing

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Turbulent Agglomeration of Microparticles in a Cylinder Wake Flow Using LES-DEM:Focusing on the Effect of the Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 34-49页

作者： wang Shuang MU Lin LI Xue XIE Jun DONG ming School of Energy and Power Engineering Dalian University of Technology School of Optical Information and Energy Engineering Wuhan Institute of Technology School of Energy and Environment Shenyang Aerospace University

Turbulent agglomeration is viewed as a promising technology for enhancing fine particle removal *** better understand particle transport,agglomeration behaviors,and fluid-particle interactions,we numerically explored these phenomena under cylindrical vortex wake influence using a coupled large eddy simulation and discrete element method（LES-DEM） *** validity of the LES approach was verified by comparison with available direct numerical simulation（DNS） *** adopted the Johnson-Kendall-Roberts（JKR） contact model for particle-particle *** particle dispersion and agglomeration characteristics of particles with different diameters（dp=2-20 μm） in the laminar and transition of shear layer（TrSL） flow regimes were *** particles were concentrated at the vortex centers,while larger particles accumulated around the *** agglomeration efficiency exhibited an M-shaped profile spanwise（y-direction）.With increasing Reynolds number,the agglomeration efficiency and turbulence intensity *** particle agglomeration efficiency peaks at a certain Reynolds ***,at higher Reynolds numbers,reducing the residence time of particles in the flow field decreases the agglomeration efficiency.

关键词： discrete element method large eddy simulation microparticle particle agglomeration

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基于旋转因子变换插值的电压闪变检测算法

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电工技术学报 2016年第22期31卷 178-185页

作者：李兰芳马明盛超王泽广东电网公司电力科学研究院广州510080 四川大学电气信息学院成都610065

IEC 61000—4—15标准中的闪变仪是基于调幅波调制模型,需要经过一系列的二次方、滤波及统计等流程,其缺点是流程复杂,不利于数字闪变仪的设计。基于此,首先从数学模型上推导了IEC标准下闪变检测机理,为数字闪变仪的设计和校验提供理论... 详细信息

IEC 61000—4—15标准中的闪变仪是基于调幅波调制模型,需要经过一系列的二次方、滤波及统计等流程,其缺点是流程复杂,不利于数字闪变仪的设计。基于此,首先从数学模型上推导了IEC标准下闪变检测机理,为数字闪变仪的设计和校验提供理论依据;然后根据IEC闪变检测中存在的问题提出了基于旋转因子变换插值的闪变检测算法,通过对频谱进行旋转因子变换,再利用谱线叠加插值思想来抑制频谱泄漏和消除栅栏效应,实现了高精度估计间谐波参数,从而间接计算闪变参数。简化了闪变检测流程,减小了频谱泄漏的影响,使得闪变检测精度提高。所提方法还可以计算出多个调幅波分量的单独闪变贡献值,仿真和实际测量结果均验证了所提方法的准确性和有效性。

关键词：电压闪变检测旋转因子变换插值间谐波频谱分析

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