期刊
RSC ADVANCES
卷 7, 期 20, 页码 12027-12032出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra26535a
关键词
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资金
- Doctoral Startup and Research Fund of Jinzhong University [BSJJ2015212]
- Foundation of Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province [MECS2016001]
Cu2O-CuO-GN nanohybrid is prepared by a simple electrochemical method by applying a positive and negative pulse electric signal on a dispersion of a mixture of GO and Cu(NO3) 2. During the process, reduction of graphene oxide and deposition of Cu2O-CuO on GN occur simultaneously. The nanohybrid is systematically characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Cu2O-CuO nanoparticles with diameters around 100 nm are uniformly distributed on the GN. In addition, the electrochemical properties of the Cu2O-CuO-GN nanohybrid are investigated by cyclic voltammetry (CV), galvanostatic charge/ discharge (DC) and electrochemical impedance spectrometry measurements (EIS). The Cu2O-cuO- GN nanohybrid shows a higher specific capacitance (222 F g (1) at 1 A g (1)) than that of pure GN (143 F g (-1) at 1 A g (-1)) prepared under the same conditions. This approach opens up the possibility for fabrication of high-performance GN- based electrode materials.
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