Metal-organic framework-engaged synthesis of core-shell MoO2/ZnSe@N-C nanorods as anodes in high-performance lithium-ion batteries

doi:10.1039/d1nj01585k

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	Metal-organic framework-engaged synthesis of core-shell MoO2/ZnSe@N-C nanorods as anodes in high-performance lithium-ion batteries
	Zhong, Ming 1; Li, Lingling 1; Zhao, Kun 1; Peng, Hui 3; Xu, Shixian 2; Su, Bitao 3; Wang, Dahui 1
刊名	NEW JOURNAL OF CHEMISTRY
	2021-07-21
卷号	45 期号:27 页码:12064-12070
关键词	Anodes Cyclic voltammetry Doping (additives) II-VI semiconductors Ions Metal-Organic Frameworks Molybdenum oxide Nanorods Organometallics Shells (structures) Zinc Selenide Controlled behavior Conversion reactions Coulombic efficiency Electrical conductivity High specific capacity High-performance lithium-ion batteries Nitrogen-doped carbons Specific capacities
ISSN号	1144-0546
DOI	10.1039/d1nj01585k
英文摘要	Searching for novel alternatives to the traditional graphite anode in high performance lithium-ion batteries is of great significance, which, however, faces many challenges. In this work, pyrolysis coupled with a selenization strategy was adopted to synthesize a one-dimensional core-shell nanorod composite (MoO2/ZnSe@N-C) by using zeolitic-imidazole framework coated molybdenum trioxide as a precursor. The as-obtained material comprises a zinc selenide loaded molybdenum dioxide core and a nitrogen-doped carbon shell, which can enhance the specific capacity through conversion reactions and buffer the volume change as well as promote the electrical conductivity, respectively. When used as an anode in lithium-ion batteries, the optimized MoO2/ZnSe@N-C sample delivers a high specific capacity (807 mA h g(-1) at 100 mA g(-1) for 100 cycles) with a coulombic efficiency up to 99%, a good rate capability, and long-term cycling stability for 900 cycles at 500 mA g(-1) which is better than that of MoO3 and ZIF-8 derived materials. In addition, the lithium storage mechanism was analyzed by cyclic voltammetry at various scanning rates and the result indicates that the capacitive-controlled behavior dominates the Li+ ion transport kinetics process.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000663882100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148969]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Shangrao Normal Univ, Coll Chem & Environm Sci, Shangrao 334001, Peoples R China 3.Northwest Normal Univ, Key Lab Ecoenvironm Polymer Mat Gansu Prov, Coll Chem & Chem Engn, Key Lab Ecofunct Polymer Mat,Minist Educ, Lanzhou 730070, Peoples R China;
推荐引用方式 GB/T 7714	Zhong, Ming,Li, Lingling,Zhao, Kun,et al. Metal-organic framework-engaged synthesis of core-shell MoO2/ZnSe@N-C nanorods as anodes in high-performance lithium-ion batteries[J]. NEW JOURNAL OF CHEMISTRY,2021,45(27):12064-12070.
APA	Zhong, Ming.,Li, Lingling.,Zhao, Kun.,Peng, Hui.,Xu, Shixian.,...&Wang, Dahui.(2021).Metal-organic framework-engaged synthesis of core-shell MoO2/ZnSe@N-C nanorods as anodes in high-performance lithium-ion batteries.NEW JOURNAL OF CHEMISTRY,45(27),12064-12070.
MLA	Zhong, Ming,et al."Metal-organic framework-engaged synthesis of core-shell MoO2/ZnSe@N-C nanorods as anodes in high-performance lithium-ion batteries".NEW JOURNAL OF CHEMISTRY 45.27(2021):12064-12070.