Fabrication and Electrochemical Properties of Graphene-ZnO Nanocomposite

Authors

Chuan-ling MEN, University of Shanghai for Science and Technology, School of Energy and Power Engineering, Shanghai 200093, China;Follow
Wan WANG, University of Shanghai for Science and Technology, School of Energy and Power Engineering, Shanghai 200093, China;
Jun CAO, University of Shanghai for Science and Technology, School of Energy and Power Engineering, Shanghai 200093, China;

Corresponding Author

Chuan-ling MEN(wancxyr@gmail.com)

Abstract

In this work, the graphene-ZnO nanocomposite was successfully synthesized through a one-step solvothermal approach, using ethylene glycol as the solvent and reducing agent. The ZnO particles could be attached to the surfaces and edges of graphene sheet. The electrochemical performance of the nanocomposite was investigated by performing cyclic voltammetry, A.C. impedance and chronopotentiometry tests in 6 mol·L^-1 KOH. The results showed that the graphene-ZnO nanocomposite exhibited a nice electrochemical specific capacitance of 115 F·g^-1 determined in cyclic voltammetry test, or 71 F·g^-1 evaluated in chronopotentiometry test and good reversible charge/discharge behavior.

Graphical Abstract

Keywords

graphene, ZnO, supercapacitors, nanocomposite, cyclic voltammetry

DOI Link

https://doi.org/10.13208/j.electrochem.130724

Publication Date

2014-04-28

Online Available Date

2014-04-17

Revised Date

2013-11-05

Received Date

2013-07-24

Recommended Citation

Chuan-ling MEN, Wan WANG, Jun CAO. Fabrication and Electrochemical Properties of Graphene-ZnO Nanocomposite[J]. Journal of Electrochemistry, 2014 , 20(2): 189-193.
DOI: 10.13208/j.electrochem.130724
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss2/15