| Autor: |
Xie, Tian, Xu, Jinxiao, Wang, Jie, Xuan, Cuijuan, Ma, Chuanli, Su, Linghao, Dong, Fengying, Gong, Liangyu |
| Zdroj: |
Energy & Fuels; December 2020, Vol. 34 Issue: 12 p16791-16799, 9p |
| Abstrakt: |
The in situ growth strategy provided a multistep method to design and synthesize core–shell heterostructure CoMoO4@CuCo2S4nanomeshes grown on carbon cloth. Owing to the synergistic effect between CoMoO4nanosheets and CuCo2S4nanoneedles in the meshes, such electrodes realize a rapid electron/ion transfer and superior electrical conductivity. Meanwhile, a mechanism for this specific structural material is proposed based on the time factors. The obtained core–shell structured CoMoO4@CuCo2S4electrode displays an outstanding performance with an initial specific capacitance of 1414 F·g–1at 1 A·g–1capacitance and 9.8% capacitance decay after 9500 cycles. More notably, the configuration of an asymmetric supercapacitor using optimized active materials and active carbon reveals a preceding energy density of 60.4 Wh·kg–1. Furthermore, the capacitance retention of the device can reach more than 83.3% when it runs for 4000 cycles. |
| Databáze: |
Supplemental Index |
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