Journal
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
Volume 1, Issue 4, Pages 454-460Publisher
VIETNAM NATL UNIV
DOI: 10.1016/j.jsamd.2016.10.001
Keywords
Solvothermal; Graphene-ZnO; Graphene oxide; Cyclic voltammetry; Specific capacitance
Funding
- Platinum Retails Ltd., UK
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Graphene-ZnO nanocomposites (G-ZnO) were prepared by a facile solvothermal approach. Well, crystalline ZnO nanoparticles with size in the range of 30-70 nm are uniformly deposited on the graphene sheets, as evidenced by different techniques. The electrochemical properties of the prepared nanocomposites were examined by measuring the specific capacitance in 6 M KOH solution using cyclic voltammetry and galvanostatic charge-discharge techniques. G-ZnO nanocomposites showed a good capacitive behavior with a specific capacitance of 122.4 F/g as compared to graphene oxide (2.13 F/g) and rGO (102.5 F/g) at 5 mV/s scan rate. Results demonstrated that such hybrid materials are promising electrode materials for high-performance supercapacitor applications. Crown Copyright (C) 2016 Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi.
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