NiO/graphene nanocomposite for determination of H2O2 with a low detection limit

被引：50

作者：

Yu, Zhiyuan ^{[1
]}

Li, Hejun ^{[1
]}

Zhang, Xinmeng ^{[1
]}

Liu, Ningkun ^{[1
]}

Zhang, Xv ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Carbon Carbon Composites Res Ctr, Xian 710072, Peoples R China

来源：

TALANTA | 2015年 / 144卷

关键词：

NiO; Graphene; H2O2; Electrochemical sensor; REDUCED GRAPHENE OXIDE; NONENZYMATIC GLUCOSE; HYDROGEN-PEROXIDE; MODIFIED ELECTRODE; CARBON ELECTRODE; SENSOR; NIO; NANOSHEETS; PERFORMANCE; BIOSENSOR;

D O I：

10.1016/j.talanta.2015.05.070

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 mu M, high sensitivity of 591 mu A 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. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

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