标题:Graphene-encapsulated selenium/polyani line core-shell nanowires with enhanced electrochemical performance for Li-Se batteries
作者:Zhang, Jingjing; Xu, Yanhua; Fan, Long; Zhu, Yongchun; Liang, Jianwen; Qian, Yitai
作者机构:[Zhang, Jingjing; Xu, Yanhua; Fan, Long; Zhu, Yongchun; Liang, Jianwen; Qian, Yitai] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hef 更多
通讯作者:Zhu, Yongchun
通讯作者地址:[Zhu, YC]Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China.
来源:NANO ENERGY
出版年:2015
卷:13
页码:592-600
DOI:10.1016/j.nanoen.2015.03.028
关键词:Lithium-selenium batteries; Selenium nanowire; Polyaniline; Core-shell;; Graphene; Electrochemical performance
摘要:A novel nanocomposite of graphene-encapsulated selenium/polyaniline core shell nanowires (G@Se/PANI) has been designed and synthesized under the condition of low temperature without heating and investigated as a cathode material for Li-ion batteries. In this nanocomposite, selenium nanowires are well-sealed in the PANI layer with a thickness of approximate to 25 nm forming a core/shell structure and then the Se/PANI core-shell nanowires are uniformly encapsulated in the graphene nanosheets. As expected, the G@Se/PANI nanocomposite exhibits enhanced cycling performance and high-rate capability. The G@Se/PANI nanocomposite displays a reversible discharge capacity of 567.1 mA h/g at 0.2 C after 200th cycle and 510.9 mA h/g at 2 C, which could be associated with the highly electrical conductivity of graphene sheets and the unique PANI shell, together with the one-dimensional structure of selenium in the G@Se/PANI nanocomposite. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:45
Scopus被引频次:45
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927917956&doi=10.1016%2fj.nanoen.2015.03.028&partnerID=40&md5=153b9a2e829d7e3de10a2380323e3c8a
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