Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 32, Issue 4, Pages 4805-4814Publisher
SPRINGER
DOI: 10.1007/s10854-020-05219-0
Keywords
-
Categories
Funding
- Qing Lan project of Jiangsu Province
Ask authors/readers for more resources
The CuS/rGO composite electrode material demonstrates high specific capacitance and long cycling life, indicating excellent electrochemical performance for potential applications in efficient electrochemical supercapacitors.
Transition metal chalcogenides have been considered as promising electrode materials for high-performance supercapacitors owing to their exceptional electrical conductivity, ultrahigh specific capacity, etc. Herein, CuS/rGO composite electrode material has been rationally prepared by using a facile and efficient strategy, and the synergistic effect of CuS and rGO on the enhanced electrochemical performance is explored. The CuS/rGO electrode with diffusion-controlled feature can deliver a high specific capacitance of 1918.6 F g(- 1) F g (- 1) at 1 A g (- 1) and as well as a long cycling life with 95.4% retention after 5000 cycles at 10 A g (- 1). Charge storage analysis reveals that the dominant diffusion-controlled feature of CuS/rGO electrode is observed. Additionally, the as-synthesized asymmetric supercapacitor by using CuS/rGO electrode exhibited a maximum energy density of 51.1 Wh kg(- 1) at 799.9 W kg(- 1) and a maximum power density of 16007.9 W kg(- 1) (for an energy density of 36.0 Wh kg(- 1)). Besides, it displays excellent cyclic stability with 91.3% capacity retention after 10,000 cycles at 10 A g(- 1). These remarkable electrochemical performances demonstrate that CuS/rGO composite has excellent potential applications in high-efficient electrochemical supercapacitor.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available