Microwave-assisted rapid synthesis of NiCo2S4 nanotube arrays on Ni foam for high-cycling-stability supercapacitors
| Autor: | Ding Lei, Zheng Liu, Jinchun Tu, Mingliang Guo, Wei Huang, Jieqiong Wang, Changhong Zhan, Haixing Gao |
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| Rok vydání: | 2019 |
| Předmět: |
Supercapacitor
Nanotube Materials science Mechanical Engineering Metals and Alloys Sulfidation chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Cobalt sulfide Capacitance 0104 chemical sciences chemistry.chemical_compound Nickel chemistry Chemical engineering Mechanics of Materials Materials Chemistry 0210 nano-technology Ternary operation |
| Zdroj: | Journal of Alloys and Compounds. 780:164-169 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2018.11.340 |
| Popis: | In this work, NiCo2S4 nanotube arrays are grown in suit on a Ni foam through a rapid microwave-assisted sulfidation process from analogous structure of Ni-Co precursors. This uniform nanotube array structure yields a high specific capacitance of 8.6 F cm−2 at 10 mA cm−2, and superb cycle property without loss of function after 48000 cycles at 50 mA cm−2. Benefitted by the nanotube structure and the unique triangular supporting system from the electrochemical activation, the cycling stability of ternary nickel cobalt sulfide is maintained at a high level with superior specific capacitance. Therefore, this novel structure has some reference significance for further research of supercapacitors. |
| Databáze: | OpenAIRE |
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