摘要
A simple and versatile method for general synthesis of uniform one-dimensional (1D) MxCo3-xS4 (M=Ni, Mn, Zn) hollow tubular structures (HTSs), using soft polymeric nanofibers as a template, is described. Fibrous core-shell polymer@M-Co acetate hydroxide precursors with a controllable molar ratio of M/Co are first prepared, followed by a sulfidation process to obtain core-shell polymer@MxCo3-xS4 composite nanofibers. The as-made MxCo3-xS4 HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo2S4 HTS electrode can deliver specific capacitance of 1094 Fg-1 at 10 Ag-1, and the cycling stability is remarkable, with only about 6% loss over 20000 cycles.
源语言 | 英语 |
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页(从-至) | 10521-10524 |
页数 | 4 |
期刊 | Angewandte Chemie - International Edition |
卷 | 54 |
期 | 36 |
DOI | |
出版状态 | 已出版 - 1 9月 2015 |
已对外发布 | 是 |