Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (10): 1070-1076.DOI: 10.15541/jim20180032

Special Issue: 二维材料

• RESEARCH PAPER • Previous Articles     Next Articles

One-step Preparation and Electrochemical Performance of 3D Reduced Graphene Oxide/NiO as Supercapacitor Electrodes Materials

ZENG Yan-Fei, XIN Guo-Xiang, BULIN Chao-Ke, ZHANG Bang-Wen   

  1. School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
  • Received:2018-01-29 Revised:2018-04-16 Published:2018-10-20 Online:2018-09-25
  • About author:ZENG Yan-Fei. E-mail:
  • Supported by:
    National Natural Science Foundation of China (51164026);The Inner Mongolia Autonomous Region Natural Science Foundation (2017BS0508);Innovation Fund of Inner Mongolia University of Science and Technology (2016QDL-B01)


In this study, by using dispersions of graphene oxide (GO) and nickel nitrate (Ni(NO3)2·6H2O) with different ratios as precursors, three-dimensional self-supported reduced graphene oxide/NiO composites (3D rGO/NiO) were prepared via a one-step hydrothermal method. The analysis results (XRD, SEM, etc) indicate that NiO nanoparticles are homogeneously dispersed on the surface of graphene layers. The specific capacitance of 3D rGO/NiO composite reaches 1208.8 F·g-1 at a current density of 1 A·g-1 when the mass ratio of GO and Ni(NO3)2·6H2O is 1 : 4. With the current density increasing from 0.2 to 10 A·g-1, the specific capacitance retention of this composite is higher than 72.6%. After 10000 cycles, the specific capacitance of 3D rGO/NiO at a current density of 10 A·g-1 remained at 93% of the initial specific capacitance. All of these demonstrated that the composite possesses good rate capability and cycle stability. The 3D rGO/NiO composite has excellent electrochemical performances when compared with pure NiO or rGO, which is attributed to the synergistic effect between NiO and rGO.


Key words: three-dimensional graphene, nickel oxide, supercapacitor, hydrothermal method, electrochemical properties

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