期刊
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
卷 34, 期 6, 页码 882-886出版社
HIGHER EDUCATION PRESS
DOI: 10.1007/s40242-018-8073-6
关键词
Supercapacitor; Co3O4/NF; Hydrothermal; Nanorod
资金
- National Natural Science Foundation of China [51364024, 51404124]
- Foundation for Innovation Groups of Basic Research in Gansu Province, China [1606RJIA322]
Flower-shaped Co3O4 nanorods directly grown on nickel foam(Co3O4/NF) were prepared by one step hydrothermal method at low temperature. Co3O4 nanorods are directly connected with the nickel foam, and no binder is needed as an additive, so the Co3O4/NF electrode has good electrical conductivity. This flower-shaped structure makes larger surface area of Co3O4 nanorods that exposes to the electrolyte, thus promoting the redox reaction. The Co3O4/NF electrode shows a high specific capacitance of 2005.34 F/g at the current density of 0.5 A/g and a high capacitance retention of 98.0% after 5000 cycles. The high superior capacitive performance with high specific capacitance and the excellent cyclic performance indicate that the one step hydrothermal method has great potential application in supercapacitors.
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