Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (9): 2010.doi: 10.7503/cjcu20180158

• Physical Chemistry • Previous Articles     Next Articles

Facile Synthesis of Scale-like CoMn2O4 Nanosheets on Reduced Graphene Oxide for Supercapacitors

LI Long1, HU Hongli1,*(), DING Shujiang2   

  1. 1. State Key Laboratory of Electrical Insulation and Power Equipment, 2. School of Science, Xi’an Jiaotong University, Xi’an 710049, China
  • Received:2018-02-28 Online:2018-09-07 Published:2018-05-12
  • Contact: HU Hongli E-mail:hlhu@mail.xjtu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No. 51777151) and the Research Fund of China XD Group-Xi’an Jiaotong University Electrical Technology Research Institute(No.XDRD16001).

Abstract:

Scale-like CoMn2O4 nanosheets anchoring on reduced graphene oxide(CoMn2O4/rGO) were fabricated via a facile co-precipitation and thermal process. The resulting product of CoMn2O4/rGO was characterized by field emission scanning electron microscopy(FESEM), transmission electron microscopy(TEM), X-ray diffraction(XRD) and X-ray photoelectron spectroscopy(XPS). When evaluated its potential as electrode material in supercapacitors, CoMn2O4/rGO nanocomposites exhibit enhanced energy storage performance with high specific capacitance(1000.8 F/g at 2 A/g) and excellent cycle stability(93.6% capacitance retention after 1000 cycles).

Key words: Scale-like structure, CoMn2O4 nanosheets, Reduced graphene oxide, Supercapacitor, Electrode material

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