期刊
INORGANIC CHEMISTRY FRONTIERS
卷 4, 期 9, 页码 1575-1581出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7qi00361g
关键词
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资金
- National Natural Science Foundation of China [51575135, U1537206]
Herein, hierarchical CuCo2O4@NiMoO4 core-shell nanowire arrays were successfully synthesized on Ni foam via hydrothermal processes as a battery-like electrode. Owing to the unique core-shell structure and the synergetic effect from CuCo2O4 and NiMoO4, the resulting CuCo2O4@NiMoO4 core-shell arrays exhibit a high specific capacitance of 2207 F g(-1) at 1.25 A g(-1) and good rate capability with only about 4.4% capacitance loss after cycling tests. Furthermore, we assemble the corresponding asymmetric supercapacitor using CuCo2O4@NiMoO4 (positive electrode) and activated carbon (negative electrode), which delivers a high energy density (about 40 W h kg(-1)) and good cycle stability. Thereby, these electrochemical performances demonstrated that as-fabricated CuCo2O4@NiMoO4 core-shell arrays are promising candidates as electrodes for high-performance supercapacitors.
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