期刊
JOURNAL OF CLUSTER SCIENCE
卷 33, 期 5, 页码 2113-2121出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10876-021-02138-w
关键词
Nanohybrid; NiS; CNTs; Nickel foam; Binder free; Gravimetric capacitance
资金
- Deanship of Scientific Research, King Saud University Riyadh (Saudi Arabia) [1438-068]
- American University in Cairo (AUC) [SSE-CHEM-S.Z.-FY19-FY20-FY21-RG (1-19)-2018-Oct-01-17-53-22]
A novel NiS/CNTs nanohybrid with higher specific capacity and cyclic performance was fabricated as an anodic material for supercapacitor applications. The NiS/CNTs electrode exhibited good gravimetric ability and considerable cyclic performance due to its hybrid composition and self-supporting design. The hybrid electrode maintained a high gravimetric capacity even under increased current density, indicating its promising potential for practical applications in advanced energy storage devices.
In this study, a novel NiS/CNTs nanohybrid with a higher specific capacity and cyclic performance was fabricated as an anodic material for supercapacitor applications. The NiS/CNTs nanohybrid was furnished on the three-dimensional nickel foam (NF) to prepare a novel electrode with a self-supporting design. The NiS/CNTs electrode, with its hybrid composition, larger surface area, self-supporting design and improved electrical conductivity, provides a higher gravimetric capacity of 732F/g@1Ag(-1). Application studies have shown that NiS/CNTs electrodes not only have good gravimetric ability, but also have considerable cyclic performance and activity due to their hybrid composition and self-supporting design. More precisely, the NiS/CNTs@NF electrode lost only 4.9% of its gravimetric capacity after 3000 continuous galvanostatic discharge (GCD) cycles, indicating its exceptional cyclic performance. In addition, the manufactured hybrid electrode maintains a gravimetric capacity of approximately 84.5%, even if the applied current density is increased fivefold. The impedance results indicated that the electrochemical reaction between the NiS/CNTs and the electrolyte is more rapid and highly reversible. Based on the findings from the electrochemical study, the NiS/CNTs@NF electrode appears to be a promising candidate for practical applications in advanced energy storage devices.
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