期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 820, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.153113
关键词
Hybrid supercapacitor; Metal sulfide; NiS2/MoS2; In-situ method
资金
- National Natural Science Foundation of China [61605036, 51772070]
- Natural Science Foundation of Heilongjiang Province [YQ2019E031, QC2017077]
- Innovative Talents Training Plan for Young Undergraduates in Heilongjiang Province [UNPYSCT-2016074, UNPYSCT-2017185777777]
Transition metal sulfides are promising as electrode materials for high-performance supercapacitors. Here, an in-situ hydrothermal method is developed for synthesis of NiS2/MoS2 (NMS) nanowires supported on Ni foam that facilitate the transport of electrolyte ions and electrons. Owing to the structural and compositional benefits, the NiS2/MoS2 electrode exhibits a high areal capacitance of 4.46 F cm(-2) at 5 mA cm(-2) and excellent cycle stability. In addition, the NiS2/MoS2//AC hybrid supercapacitor was assembled, which delivers an energy density of 0.35 mWh cm(-2) at a power density of 3.63 mW cm(-2), and 92.4% capacitance retention after 3000 cycles. The work presents a facile in-situ hydrothermal method to synthesize high-performance binder-free electrode. (C) 2019 Elsevier B.V. All rights reserved.
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