Abstract
CuCo2O4 nanoparticles were synthesized via facile hydrothermal route using oxalic as a precipitant, thermal decomposition of CuCo2O4 precursor at 400[Formula: see text]C. The structural studies from X-ray diffraction (XRD), Fourier transform infrared spectrometer, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) disclose the predominant spinel crystal phase for copper cobaltite. The optical absorption spectra reveal two band gaps of 3.8[Formula: see text]eV and 4.4[Formula: see text]eV in the CuCo2O4 nanoparticles. The cyclic voltammetry (CV) was used to assess the electrochemical characteristics of the resulting product in an organic electrolyte at −1.5–1.5[Formula: see text]V under ambient conditions. On 22.4[Formula: see text]nm CuCo2O4 nanoparticles, a greater capacitance of 920[Formula: see text]F/g at a scan rate of 5[Formula: see text]mV/s was achieved.
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