检索结果-南通市图书馆

Stable lithium metal anode enabled by a robust artificial fluorinated hybrid interphase

Journal of Energy Chemistry 2023年第8期83卷 612-621,I0014页

作者： Qiwen Ran Hongyuan Zhao Jintao liu Lei Li Qiang Hu Jiangxuan Song xingquan liu Sridhar Kormarneni School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Departmentof Ecosystem Science and Management and Materials Research Institute 204 Energy and theEnvironment LaboratoryThePennsylvania State University University ParkPA 16802USA State Key Laboratory for Mechanical Behavior of Materials Shaanxi International Research Center for Soft MatterXi'an Jiaotong UniversityXi'an 710049ShaanxiChina Research Center for Electrochemistry and Energy Engineering Henan Institute of Science and TechnologyXinxiang 453003HenanChina

One of the key challenges for achieving stable lithium(Li) metal anode is the construction of the rational solid electrolyte interphase(SEI),but its realization still faces enormous *** this work,a robust artificial fluorinated hybrid interphase consisting of lithium-bismuth(Li3Bi) alloy and lithium-fluoride(LiF) was designed to regulate Li deposition without Li dendrite *** obtained hybrid interphase showed the high Li+diffusion rate(3.5 × 10^(-4)S cm^(-1)),high electron resistivity(9.04 × 10^(4)Ω cm),and high mechanical strength(1348 MPa),thus enabling the uniform Li deposition at the Li/SEI ***,Li3Bi alloy,as a superionic conductor,accelerated the Li+transport and stabilized the hybrid ***,LiF was identified as a superior electron-blocker to inhibit the electron tunneling from the Li anode into the *** a result,the modified Li anode showed the stable Li plating/stripping behaviors over 1000 cycles even at 20 mA cm^(-2).Moreover,it also enabled the Li(50 μm)‖LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(4.4 mA h cm^(-2)) full cell to achieve an average Coulombic efficiency(CE) of 99.6%and a high-capacity retention of 79.2% after 100 cycles,whereas the bare Li anode only exhibited a low-capacity retention of 8.0%.This work sheds light on the internal mechanism of Li+transport within the hybrid interface and provides an effective approach to stabilize the interface of Li metal anode.

关键词： Li metal anode Artificial interphase Li,Bi alloy LiF Uniform Li deposition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesizing an inorganic-rich solid electrolyte interphase by tailoring solvent chemistry in carbonate electrolyte for enabling high-voltage lithium metal batteries

引用

Journal of Energy Chemistry 2023年第7期82卷 475-483,I0010页

作者： Qiwen Ran Hongyuan Zhao Jintao liu Lei Li Qiang Hu Fuquan Nie xingquan liu Sridhar Kormarneni School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Department of Ecosystem Science and Management and Materials Research Institute 204 Energy and the Environment LaboratoryThe Pennsylvania State UniversityUniversity ParkPA 16802USA Research Center for Electrochemistry and Energy Engineering Henan Institute of Science and TechnologyXinxiang 453003HenanChina

High-voltage(>4.0 V)lithium metal battery(LBM)is considered to be one of the most promising candidates for next-generation high-energy ***,the commercial carbonate electrolyte delivers a poor compatibility with Li metal anode,and its organic dominated solid electrolyte interphase(SEI)shows a low interfacial energy and a slow Li^(+)diffusion *** this work,an inorganic LiF-Li_(3)N rich SEI is designed to enable high-voltage LBM by introducing nano-cubic LiF and LiNO_(3)into1 M LiPF_(6)ethylene carbonate(EC)/dimethyl carbonate(DMC)(v:v=1:1)***,the unique nano-cubic structure of as-synthetized LiF particles achieves its high concentration dissolution in carbonate electrolyte to enhance the interfacial energy of *** addition,tetramethylene sulfolane(TMS)is used as a carrier solvent to dissolve LiNO_(3)in the carbonate electrolyte,thereby deriving a Li_(3)N-rich *** a result,the as-designed electrolyte shows a high average Li plating/striping CE of 98.3%after 100 cycles at 0.5 m A cm^(-2)/0.5 mA h cm^(-2).Furthermore,it also enables the ultrathin Li(~50μm)‖LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM,4.4 mA h cm^(-2))full cell to deliver a high-capacity retention of 80.4%after 100 cycles with an outstanding average CE of 99.7%.Notably,the practical application prospect of the modified electrolyte is also estimated in LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)‖Li pouch cell with an energy density of 261.2 W h kg^(-1).This work sheds light on the internal mechanism of Li^(+)transport within the inorganic dominated SEI and provides a simple approach to stabilize the high-voltage LMBs.

关键词： Li metal battery Carbonate electrolyte Nano-cubic LiF LiNO_(3) Tetramethylene sulfolane

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Regulating the d band in WS_(2)@NC hierarchical nanospheres for efficient lithium polysulfide conversion in lithium-sulfur batteries

引用

Journal of Energy Chemistry 2021年第5期30卷 343-352页

作者： Jintao liu Shuhao Xiaoa Le Chang Long Lai Rui Wu Yong Xiang xingquan liu Jun Song Chen School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Center for Applied Chemistry University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina

The performance of lithium-sulfur batteries is deteriorated by the inferior conductivity of sulfur,the shuttle effect of lithium polysulfides(LiPSs),sluggish redox kinetics of polysulfide intermediates and serious volumetric expansion of *** overcome these challenges,we report a versatile route to prepare multi-functional nanocomposites with tuable hierarchical structure via ammonium hydroxide(NH_(3)·H_(2) O)induced *** versatility of the system has been demonstrated that the organization of the hierarchical structure can be regulated by adding different amounts of NH_(3)·H_(2) O,and WS_(2) and Co_(9)S_(8) with nitrogen-doped carbon coating(denoted as WS_(2)@NC and Co_(9)S_(8)@NC)can be prepared by adding different precursor *** the as-prepared materials are applied for Li-S batteries,the WS_(2)@NC composite exhibits a reversible capacity of 1107.4 mAh g^(-1) at 0.1 C after 500 cycles and even 728.9 mAh g^(-1) at2 C for 1000 cycles,which is significantly better than the Co_(9)S_(8) counterpart and other reported WS_(2) sulfur ***,the advantageous performance of WS_(2) could be attributed to its higher surface area and total pore volume,giving rise to the easier access to electrolyte and better ability to buffer the volume change during the charge/discharge ***,the density function theory(DFT)calculation reveals that the as-prepared WS_(2) has a higher binding energy towards LiPSs as well as a lower energy barrier for Li^(+)diffusion on the surface than Co_(9)S_(8).More significantly,the density of states(DOS)analysis further confirms that the superior performance is mainly ascribed to the more prominent shifting and the more charge compensation from d band of W than Co,which increase electronic concentration and give more hybridization of d-p orbitals in the Fermi level of the adsorbed Li2 S4 to accelerate the lithium polysulfide interfacial redox and conversion dynamics in WS_(2).By proposing this mechan

关键词： Dband regulation Density of states DFT theoretical calculations Metal sulfides Lithium-sulfur batteries

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis ofα-Li FeO_(2)/Graphene nanocomposite via layer by layer self-assembly strategy for lithium-ion batteries with excellent electrochemical performance

引用

Journal of Materials Science & Technology 2020年第20期52卷 173-181页

作者： Youzuo Hu Hongyuan Zhao Ming Tan Jintao liu Xiaohui Shu Meiling Zhang Shanshan liu Qiwen Ran Hao Li xingquan liu R&D Center for New Energy Materials and Integrated Energy Devices University of Electronic Science and Technology of ChinaChengdu 610054China

As a potential alternative cathode material,α-LiFeO2 suffers a realization handicap,mainly due to its poor electrical conductivity and low lithium ion diffusion *** this work,we have successfully synthesized α-LiFeO2/rGO nanocomposite through a layer by layer self-assembly modification process and annealing *** to the strong electrostatic attraction between opposite cha rged spices,α-LiFeO2 nanoparticles were homogeneously dispersed on the graphene sheet to form a typical interconnected conducting network which was bene ficial for electronic conductivity and ionic diffu *** comparison to pristine α-LiFeO2,the α-LiFeO2/rGO displayed an excellent electrochemical perfo rmance with average discharge capacities of 238.9,187.2,178.4,121.8 and 99.5 mA hg^-1 at 0.1,0.2,0.5,1 and 2 C,***,the specific capacity retained 164.9 mA h g^-1 and 107.98 mA h g^-1 after 50 cycles at 0.5 C and 1 C,*** remarkable progress in rate capability and cycling ability of this new nanocomposite developed a new approach to improve the electrochemical performance of α-LiFeO2.

关键词： α-LiFeO_(2) Lithium ion battery Graphene Layer by layer self-assembly

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

IMF production and symmetry energy in heavy ion collisions near Fermi energy

引用

Nuclear Science and Techniques 2013年第5期24卷 1-6页

作者： WADA Roy HUANG Meirong LIN Weiping liu xingquan ZHAO Minghui CHEN Zhiqiang Institute of Modern Physics Chinese Academy of Science University of Chinese Academy of Sciences

The symmetry energy at the time of the production of intermediate mass fragments(IMFs) is studied using experimentally observed IMF multiplicities combined with quantum statistical model calculations(QSM of Hahn and St cker).The ratios of difference in chemical potentials between neutrons and protons relative to the temperature,(μn-μp)/T,and the double ratio temperature,T,were extracted experimentally in the reactions of64,70Zn,64Ni+58,64Ni,112,124Sn,197Au,232Th at 40A *** extracted(μn-μp)/TTscales linearly with δNN,where δNN is the asymmetry parameter,(N-Z)/A,of the emitting source and(μn-μp)/T=(11.1 1.4)δNN0.21 was *** experimentally extracted(μn-μp)/T and the double ratio temperatures are compared with those from the QSM *** temperatures-,T,and densities,ρ,extracted from the(μn-μp)/T values agreed with those from the double ratio thermometer which used the yield ratios of d,t,h and α *** the two analyses of the differential chemical potential analysis and the initial temperature analysis end up almost identical relation between T and ρ.T=5.25±0.75 MeV is evaluated from the(μn-μp)/Tanalysis,but no density determination was *** the extracted T value,the symmetry energy coefficient Esym =14.6±3.5 MeV is determined for the emitting source of T=5.25±0.75 MeV.

关键词：国际货币基金组织对称能重离子碰撞生产费米能量子统计模型实验观察中等质量碎片

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experimental reconstruction of primary fragments with kinematical focusing method

引用

Nuclear Science and Techniques 2013年第5期24卷 54-58页

作者： LIN Weiping WADA Roy HUANG Meirong liu xingquan ZHAO Minghui CHEN Zhiqiang Institute of Modern Physics Chinese Academy of Science University of Chinese Academy of Sciences

An experimental method was used to evaluate the primary isotope yields of semi-central collisions in the reaction system64Zn+112Sn at 40A *** characteristic nature of the hot nuclear matter at the time of the isotope formation was *** multiplicities of light particles(LPs) associated with intermediate mass fragments(IMFs) were determined experimentally by using a kinematical focusing *** primary isotope distributions,reconstructed by a Monte Carlo method,were compared with those of the AMD-Gemini ***/T=0.11 and asym/T=3.34 were extracted from the reconstructed primary fragments *** are consistent with those of the primary fragments of the AMD simulation.

关键词：运动学主段实验聚焦法同位素分布中等质量碎片蒙特卡罗方法反应体系

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Postharvest Variations of Rice Physicochemical Traits and Volatile Compounds under Granary Conditions During Long-Time Storage

引用

Rice science 2023年第2期30卷 92-95,I0007-I0009页

作者： HU Hao liu xingquan HE Yukai JIN Jiande WU Fenghua HUANG Shiwen ZHANG Jiaojiao College of Food and Health Zhejiang Agriculture and Forest UniversityHangzhou 311300China China National Rice Research Institute Hangzhou 310006China Zhejiang Province Grain Reserve Management Co.LTD Hangzhou 310006China

Rice quality is influenced by many factors,viz.,temperature,humidity,atmosphere and storage *** uncover quality variations of rice after postharvest,we estimated the physicochemical properties and volatile compounds of an indica rice Zhongzheyou 8 under granary conditions(20ºC-25ºC in summer and 10ºC-15ºC in other seasons)for three years.

关键词： Traits humidity harvest

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Raman spectroscopy of single quantum well wires

引用

Chinese Science Bulletin 2000年第23期45卷 2138-2141页

作者： LI Leyu ZHANG Shulin LI Zhifeng liu xingquan LU Wei SHEN Xuechu Department of Physics Peking UniversityBeijing 100871China National Laboratory of Infrared Physics Chinese Academy of SciencesShanghai 200083China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083China

We used the micro-Raman spectroscopy to investigate the V-grooved quantum well wires (QWWs), and first observed and assigned the Raman spectra of single QWW. They were the disorder induced modes at 223 and 243 cm-1, c... 详细信息

关键词： quantum well wires GaAs Raman spectroscopy.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of Additives on the Microstructure and Tribology Performance of Ta-12W Alloy Micro-Arc Oxidation Coating

引用

Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 142-149页

作者：刘玲 HU Changgang CHENG Wendong 刘兴泉 School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054China

Oxide ceramic coatings were fabricated on tantalum alloys by micro-arc oxidation (MAO) to improve their hardness and tribological properties. The MAO coatings were manufactured in a mixed silicatephosphate electrolyte containing NaF and/or EDTA (ethylene diamine tetraacetic acid). The surface morphology,cross-sectional view, chemical composition, hardness, and wear performance of the coatings were analysed. As revealed by the scanning electron microscopy, silica-rich nodules appear on the MAO coating obtained in the silicate-phosphate electrolyte, but the formation of nodules is inhibited with NaF and/or EDTA in the ***, they reduce the roughness and improve the compactness of the coatings, which are composed of Ta_(2)O_(5),(Ta, O), and TaO. A thick and hard coating is obtained in the NaF-containing electrolyte, and the tribology performance is effectively improved. With additives, the nodule structure is detached from the coating surface and dissolved in the electrolyte. By using NaF as an electrolyte additive, the abrasion performance of the MAO coating is enhanced by decreasing the nodule structure, increasing the size of micropores, and improving the coating hardness.

关键词： micro-arc oxidation tantalum alloy additives tribology performance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flavor profile variations of Huangjiu brewed in different traditional Chinese solar terms

引用

Food Quality and Safety 2022年第4期6卷 720-729页

作者： Lina Lu Jiaojiao Zhang Fenghua Wu Guangfa Xie Zhichu Shan xingquan liu College of Forestry and Biotechnology Zhejiang Agriculture and Forestry UniversityHangzhouChina College of Food and Health Zhejiang Agriculture and Forestry UniversityHangzhouChina College of Biology and Environmental Engineering Zhejiang Shuren UniversityShaoxingChina Zhejiang Pagoda Brand Shaoxing Rice Wine Co. Ltd.ShaoxingChina

Background:Through long-term research on Huangjiu fermentation,it has been found that the quality of Huangjiu is closely associated with Chinese 24-solar ***,this study was conducted to explore the characteristic and property index differences of Huangjiu,such as aroma and flavor profile,and physicochemical properties—brewed in different solar terms by choosing five representative fermentation times of Shaoxing ***:Huangjiu samples in the current study all met the national standards of traditional semi-dry *** are significant differences in physicochemical properties such as acidity and amino nitrogen among different solar-term *** three detected volatiles were applied by principal component analysis and partial least squares discriminant analysis analyses to differentiate the main *** mainly loaded to four principal components,which accounted for 86.5%.Nineteen volatiles were discriminated to significantly differentiate solar-term *** activity values(OAV)analysis found 14 compounds with OAV>1,while correlation analysis between volatiles and the outcomes of sensory evaluation displayed the various properties of Huangjiu on aroma and flavor due to the various combinations of volatiles,reducing sugar,acidity and amino *** a national wine inspector evaluated and scored Huangjiu fermented in different solar terms,Huangjiu brewed in Winter Solstice exhibited the highest performance,with a score of 91.0,and praised as a kind of gold medal ***:The methodology of this study can help to produce more types of appealing flavor and aroma of alcoholic beverages to consumers,build varietal Huangjiu or other alcoholic beverages through fermenting guidance by solar term,and even expand the applications of the traditional Chinese 24-solar term.

关键词： Huangjiu Chinese traditional 24-solar term volatile gas chromatography-mass spectrometry flavor profile

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：