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.
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页码：1 / 5
页数：5
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