Abstract
In this work, we employed a simple and cost-effective chemical route to obtain a highly stable and efficient quaternary mesoporous 3D nanoflower-like NiCuCo2S4 nanocomposite for supercapacitor applications. The NiCuCo2S4 composite exhibited a mixture of NiCo2S4 and CuCo2S4 phases, confirming the formation a quaternary NiCuCo2S4 thin film. A surface morphological analysis revealed the unique nanoflower-like nanostructure of the annealed composite. The electrochemical analysis of the NiCuCo2S4 electrode demonstrated a high specific capacity (Cs) of 414 mAh g−1 at a lower scan rate of 10 mV s−1 and a superior cycling stability up to 3000 cycles. A solid-state hybrid supercapacitor (SHS) was also constructed by the NiCuCo2S4 and AC powder as positive and negative electrodes, respectively. The NiCuCo2S4//AC hybrid cell produced a high Cs, energy density, and power density of 159 F g−1, 35.19 Wh kg−1, and 0.66 kW kg−1, respectively at a current density of 10 mA with good cycling stability. The results demonstrated that the fabrication process is effective for the development of a novel quaternary transition metal sulfide (TMS) electrode.
Original language | English |
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Pages (from-to) | 15639-15647 |
Number of pages | 9 |
Journal | Ceramics International |
Volume | 47 |
Issue number | 11 |
DOIs | |
State | Published - 1 Jun 2021 |
Keywords
- Nanoflowers
- NiCuCoS
- Novel quaternary electrode
- Supercapacitive properties
- Transition metal sulfide (TMS)