A novel nonenzymatic hydrogen peroxide sensor based on MnO2/graphene oxide nanocomposite

被引：321

作者：

Li, Limiao

Du, Zhifeng

Liu, Shuang

Hao, Quanyi

Wang, Yanguo

Li, Qiuhong ^{[1
]}

Wang, Taihong

机构：

[1] Hunan Univ, Minist Educ, Key Lab Micro Nano Optoelect Devices, Changsha 410082, Hunan, Peoples R China

来源：

TALANTA | 2010年 / 82卷 / 05期

基金：

中国国家自然科学基金;

关键词：

MnO2; Graphene oxide; Nonenzymatic; Hydrogen peroxide sensor; AMPEROMETRIC DETERMINATION; ELECTRON-TRANSFER; GLUCOSE; NANOPARTICLES; HEMOGLOBIN; BIOSENSOR; MNO2;

D O I：

10.1016/j.talanta.2010.07.020

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new electrocatalyst, MnO2/graphene oxide hybrid nanostructure was successfully synthesized for the nonenzymatic detection of H2O2. The morphological characterization was examined by scanning electron microscopy and transmission electron microscopy. The MnO2/graphene oxide based electrodes showed high electrochemical activity for the detection of H2O2 in alkaline medium. The nonenzymatic biosensors displayed good performance along with low working potential, high sensitivity, low detection limit, and long-term stability, which could be attributed to the high surface area of graphene oxide providing for the deposition of MnO2 nanoparticles. These results demonstrate that this new nanocomposite with the high surface area and electrocatalytic activity offers great promise for new class of nanostructured electrode for nonenzymatic biosensor and energy conversion applications. (C) 2010 Elsevier B.V. All rights reserved.

引用

收藏

页码：1637 / 1641

页数：5

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