One-step synthesis of Co9S8/NiS composite with enhanced charge storage performance for supercapacitors application
| Autor: | Hailong Shen, Jin Guo, Faxin Yan, Haifu Huang, Liqing Yan, Wenzheng Zhou, Geng Wei, Xianqing Liang, Yu Han |
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| Rok vydání: | 2021 |
| Předmět: |
Supercapacitor
Materials science General Chemical Engineering Composite number General Engineering General Physics and Astronomy One-Step 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Capacitance Energy storage 0104 chemical sciences Chemical engineering Specific energy General Materials Science Cyclic voltammetry 0210 nano-technology |
| Zdroj: | Ionics. 27:3143-3152 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-021-04072-3 |
| Popis: | In this work, a Co9S8/NiS composite is successfully electrodeposited on Ni foam using a cyclic voltammetry method. This method is one of several effective strategies for the in-situ growth of self-supporting arrays for electrode material, which facilitates the effective combination of Co9S8 and NiS coated on the skeleton of Ni foam without any binder. The presence of wrinkle stripes on the surface of Co9S8/NiS composite provides abundant active sites. As expected, the Co9S8/NiS composite exhibits a high capacitance (2288 F g−1 and 2.52 F cm−2 at 1.0 A g−1). Furthermore, Co9S8-NiS/NF//N-rGO/NF HSCs device delivers a maximum specific energy of 47.41 Wh kg−1 at the specific power of 400 W kg−1. This work demonstrates the great potential of the Co9S8/NiS composite in supercapacitors and provides an effective reference scheme for the preparing the metal sulfide materials with enhanced charge storage performance. |
| Databáze: | OpenAIRE |
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