期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 794, 期 -, 页码 186-194出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.04.258
关键词
N-doped MWCNT; SnO2@NiCo2O4; Thermal reduction process; Active electrodes; Supercapacitor; Cyclic stability
资金
- Basic Science Research Program under the National Research Foundation of Korea [NRF-2017R1D1A1B03028368]
- Ministry of Education
- GRDC-INHA IST-NASA Joint Research Center through National Research Foundation by Ministry of Science and ICT of Korea [2017K1A4A3013662]
A thermal reduction process was successfully employed to construct novel hybrid composites of SnO2@NiCo2O4/N-doped multiwalled carbon nanotubes (N-MWCNTs) for supercapacitors. The hybrid confirmation studies were performed using X-ray diffraction, Raman and X-ray photoelectron spectroscopy analyses. Cyclic voltammetry performance confirmed their suitability for use as an active electrode material for supercapacitors. SnO2@NiCo2O4/N-MWCNTs showed the high specific capacitance of similar to 728 Fg(-1) at 4 A/g in 6M KOH electrolyte. After 5000 cycles, the hybrid composite produced excellent capacitance retention property with similar to 92% of its primary value. Consequently, this SnO2@NiCo2O4/NMWCNTs hybrid composite promising electrode for high-performance supercapacitor applications. (c) 2019 Elsevier B.V. All rights reserved.
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