Citation: CHE Qian, ZHANG Fang, ZHANG Xiao-Gang, LU Xiang-Jun, DING Bing, ZHU Jia-Jia. Preparation of Ordered Mesoporous Carbon/NiCo2O4 Electrode and Its Electrochemical Capacitive Behavior[J]. Acta Physico-Chimica Sinica, ;2012, 28(04): 837-842. doi: 10.3866/PKU.WHXB201202074
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OMC/NiCo2O4 composite was prepared by co-precipitation with ordered mesoporous carbon (OMC) as a support. The crystalline structure and morphology of the composite were investigated by X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, and transmission electron microscopy (TEM). TEM images showed that NiCo2O4 was uniformly coated on the OMC. Cyclic voltammetry and galvanostatic charge-discharge were used to investigate the electrochemical performance of the OMC/ NiCo2O4 composite. The specific capacitances of the OMC/NiCo2O4 composite with a mass fraction of 40% NiCo2O4 were 577.0 F·g-1 at a current density of 1 A·g-1 and 470.8 F·g-1 at 8 A·g-1. The specific capacitance remains at 508.4 F·g-1 after 2000 cycles at a current density of 2 A·g-1, with a capacitance retention of 92.7%.
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