期刊
MATERIALS LETTERS
卷 265, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2020.127300
关键词
Nanosphere; Cu2O/NiO; Supercapacitors; Electronic materials; Microstructure
资金
- National Natural Science Foundation of China [51671214, 51871238]
- Xuzhou Science and Technology Project [KC18075]
In this study, Cu2O/NiO with nanosphere structure has been successfully synthesized by dealloying a copper foil coated with Zn-Cu-Ni alloy films. First, Zn-Ni films were electrodeposited on copper foil. Next, the Zn-Cu-Ni films were produced by annealing and the Cu2O/NiO was obtained after Zn-dealloying and oxidation. Due to the advantage of the tunable nanosphere structure and dealloying synthesis method, Cu2O/NiO has excellent supercapacitor properties, such as excellent cycling stability (94.5% after 5000 cycles) and high specific capacitance (2255.5 mF/cm(2) in 1 mA/cm(2)). These data suggested that this low-cost oxide Cu2O/NiO with nanosphere morphology synthesized by dealloying method could be a promising electrode material for supercapacitors. (C) 2020 Published by Elsevier B.V.
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