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- Title
Formation of hollow-cubic Ni(OH)2/CuS2 nanocomposite via sacrificial template method for high performance supercapacitors.
- Authors
Wang, Shitong; Wang, Jiemei; Ji, Xiang; Meng, Jiaxi; Sui, Yanwei; Wei, Fuxiang; Qi, Jiqiu; Meng, Qingkun; Ren, Yaojian; He, Yezeng; Zhuang, Dongdong
- Abstract
Metal hydroxide serving as a promising electrode material for the supercapacitors, has attracted considerable interests in the area of energy storage. However, the low cycling stability and electrical conductivity restrict its further application. Here, a kind of hollow-cubic Ni(OH)2/CuS2 with excellent electrochemical performance has been prepared via a facile one-step sacrificial template method. The obtained Ni(OH)2/CuS2 shows an outstanding specific capacitance of 1174 F g−1 at 1 A g−1 with 73.9% retention after 2000 charge–discharge cycles. Furthermore, the assembled asymmetric supercapacitors based on hollow-cubic Ni(OH)2/CuS2 nanocomposite and reduced graphene oxide (RGO) exhibits a high specific energy density of 27.8 Wh kg−1 at the power density of 390 W kg−1.
- Subjects
SUPERCAPACITOR performance; NANOCOMPOSITE materials; ENERGY density; ENERGY storage; SUPERCAPACITORS; POWER density; SUPERCAPACITOR electrodes
- Publication
Journal of Materials Science: Materials in Electronics, 2020, Vol 31, Issue 13, p10489
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-020-03597-z