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Updated: Apr 1, 2026
Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
NiO/graphene nanocomposite for determination of H2O2 with a low detection limit
Zhiyuan Yu1, Hejun Li1, Xinmeng Zhang1
1State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China.
Abstract:
In this study, we have reported the preparation of NiO/graphene (NiO/GR) nanocomposite for determination of H2O2 via a convenient solid reaction. The electrocatalytic behaviors towards H2O2 are investigated by cyclic voltammetry and chronoamperometry in alkaline aqueous solution. Electrochemical results indicate that the NiO/GR nanocomposite exhibits a high peak current towards the oxidation of H2O2. Moreover, high electrocatalytic activity toward the oxidation of H2O2 is observed with a low detection limit of 0.7664 μM, high sensitivity of 591 μA mM(-1) cm(-2), a wide linear range of 0.25-4.75 mM (R(2)=0.9971). Besides, the sensor presents many attractive features such as high stability and reproducibility.
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