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Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries
Tan, Yingbin1; Jia, Zhiqing1,2; Sun, Jiyang1,2; Wang, Yongzhe1; Cui, Zhonghui1; Guo, Xiangxin1
2017
发表期刊Journal of Materials Chemistry A
ISSN20507488
卷号5期号:46页码:24139-24144
摘要Copper oxide is one of the promising anode materials for lithium-ion batteries (LIBs) due to its high energy density. However, it suffers from fast capacity fading and poor cycling stability, arising from the low electrical conductivity and the large volume expansion. Herein, we report a chemical vapor and solid deposition strategy for the synthesis of hollow copper nanoparticles supported by N-doped carbon nanosheets (Cu@NCSs) on Cu foil, adopting a polymer as the carbon source. After successive oxidation treatment, the construction of hollow copper oxide encapsulated into N-doped carbon nanosheets (CuO@NCSs) is achieved. The resulting products are used as anodes in LIBs, displaying a capacity of 688 mA h g-1over 1000 cycles at 2 A g-1and a capacity of 400 mA h g-1at 4 A g-1. Such superior performance is attributed to the well-designed hollow CuO@NCS composites, which not only improve the electrical conductivity of electrode materials, but also allow easy penetration of electrolyte and mitigation of the volume expansion. © The Royal Society of Chemistry 2017.
DOI10.1039/c7ta08236c
EI入藏号20174904492000
EI主题词Lithium-ion batteries
EI分类号701.1 Electricity: Basic Concepts and Phenomena - 714.1 Electron Tubes - 761 Nanotechnology - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 933 Solid State Physics
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25698
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100039, China
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GB/T 7714
Tan, Yingbin,Jia, Zhiqing,Sun, Jiyang,et al. Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries[J]. Journal of Materials Chemistry A,2017,5(46):24139-24144.
APA Tan, Yingbin,Jia, Zhiqing,Sun, Jiyang,Wang, Yongzhe,Cui, Zhonghui,&Guo, Xiangxin.(2017).Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries.Journal of Materials Chemistry A,5(46),24139-24144.
MLA Tan, Yingbin,et al."Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries".Journal of Materials Chemistry A 5.46(2017):24139-24144.
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