Abstract
A simple and versatile method for general synthesis of uniform one-dimensional (1D) M<sub>x</sub>Co<sub>3-x</sub>S<sub>4</sub> (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@M<sub>x</sub>Co<sub>3-x</sub>S<sub>4</sub> composite nanofibers. The as-made M<sub>x</sub>Co<sub>3-x</sub>S<sub>4</sub> HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo<sub>2</sub>S<sub>4</sub> HTS electrode can deliver specific capacitance of 1094 Fg<sup>-1</sup> at 10 Ag<sup>-1</sup>, and the cycling stability is remarkable, with only about 6% loss over 20000 cycles. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
| Original language | English |
|---|---|
| Pages (from-to) | 10521-10524 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 54 |
| Issue number | 36 |
| DOIs | |
| Publication status | Published - 1 Sept 2015 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- mixed metal sulfides
- nanotubes
- polymeric template
- supercapacitors
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