期刊
CERAMICS INTERNATIONAL
卷 43, 期 6, 页码 4895-4903出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.12.140
关键词
Zinc oxide; Graphene oxide; Nanocomposite; Supercapacitor; Sensors
资金
- Government of India through Department of Science and Technology (India)-Science and Engineering Research Board (India) [SB/S2/CMP105/2013]
Zinc oxide (ZnO) and Graphene Oxide (GO) are known to show good electrochemical properties. In this paper, rGO/ZnO nanocomposites have been synthesised using a simple microwave assisted method. The nanocomposites are characterized using XRD, Raman, SEM and TEM. XRD reveals the wurtzite structure of ZnO and TEM shows the heterogeneous nucleation of ZnO nanocrystals anchored onto graphene sheets. The electrochemical properties of the rGO/ZnO nanocomposite enhanced significantly for applications in glucose sensors and supercapacitors. The non-enzymatic glucose sensor of this nanocomposite tested using cyclic voltammetry (CV) and chronoamperometry, exhibits high sensitivity (39.78 mA cm (-2) mM(-1)) and a lower detection limit of 0.2 nM. The supercapacitor electrode of rGO/ZnO nanocomposite exhibits a significant increase in specific capacitance.
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