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Triangular Prism Shaped Co3O4 as a high-performance Electrode Material for Supercapacitors

Hongmei Chen, Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan, Shanxi 030051, China
2020 International Journal of Electrochemical Science  
Herein, triangular prism shaped Co3O4 material was constructed by a facile route and used as a supercapacitor electrode. The Co3O4 material was fully characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and transmission electron microscope (TEM). Electrochemical characterization revealed that the Co3O4 material showed a high specific capacitance of 907.1 F g -1 at a current density of
more » ... current density of 1A g -1 and excellent cycle stability (with 86.5% of the initial specific capacitance remaining after 3000 cycles) at a current density of 10 A g -1 . Additionally, an energy density of 23.0 Wh/kg with a power density of 0.26 kW/kg was obtained over the Co3O4.
doi:10.20964/2020.01.55 fatcat:mr2w2oqygbh7bd3wmn575lhnf4