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题名: The Electrochemistry with Lithium versus Sodium of Selenium Confined To Slit Micropores in Carbon
作者: Xin, Sen1; Yu, Le2, 3; You, Ya2, 3; Cong, Huai-Ping1; Yin, Ya-Xia2, 3; Du, Xue-Li1; Guo, Yu-Guo2, 3; Yu, Shu-Hong6; Cui, Yi7, 8; Goodenough, John B.4, 5
关键词: Energy storage ; metal-selenium battery ; microporous carbon ; confined selenium chain ; selenium electrochemistry
刊名: NANO LETTERS
发表日期: 2016-07-01
卷: 16, 期:7, 页:4560-4568
收录类别: SCI
英文摘要: Substitution of selenium for sulfur in the cathode of a rechargeable battery containing S-s molecules in microporous slits in carbon allows a better characterization of the electrochemical reactions that occur. Paired with a metallic lithium anode, the Se-x chains are converted to Li2Se in a single-step reaction. With a sodium anode, a sequential chemical reaction is characterized by a continuous chain shortening of Se-x upon initial discharge before completing the reduction to Na2Se; on charge, the reconstituted Se-x molecules retain a smaller x value than the original Se-x chain molecule. In both cases, the Se molecules remain almost completely confined to the micropore slits to give a long cycle life.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35600
Appears in Collections:分子纳米结构与纳米技术实验室_期刊论文

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作者单位: 1.Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
3.BNLMS, Beijing 100190, Peoples R China
4.Univ Texas Austin, Mat Sci & Engn Program, 1 Univ Stn,C2201, Austin, TX 78712 USA
5.Univ Texas Austin, Texas Mat Inst, 1 Univ Stn,C2201, Austin, TX 78712 USA
6.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Div Nanomat & Chem, Dept Chem, Hefei 230026, Anhui, Peoples R China
7.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA
8.Stanford Univ, Dept Chem, Stanford, CA 94305 USA
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