Novel Silver Nanoparticle-Manganese Oxyhydroxide-Graphene Oxide Nanocomposite Prepared by Modified Silver Mirror Reaction and Its Application for Electrochemical Sensing

被引：102

作者：

Bai, Wushuang ^{[1
]}

Nie, Fei ^{[1
]}

Zheng, Jianbin ^{[1
]}

Sheng, Qinglin ^{[1
]}

机构：

[1] NW Univ Xian, Shaanxi Prov Key Lab Electroanalyt Chem, Inst Analyt Sci, Xian 710069, Shaanxi, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 08期

关键词：

silver mirror reaction; hydrogen peroxide sensor; silver nanoparticles; graphene oxide; MnOOH; SHAPE-CONTROLLED SYNTHESIS; HYDROGEN; REDUCTION; GOLD; NANOMATERIALS; SURFACES; SPHERES; FILMS; WATER;

D O I：

10.1021/am500641d

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A gas/liquid interface will be formed when the free volatilized methyl aldehyde gas begins to dissolve in to solution. On the basis of the traditional silver mirror reaction, silver nanoparticle manganese oxyhydroxide-graphene oxide (Ag-MnOOH-GO) nano-composite was synthesized at the gas/liquid interface without any protection of inert gas at room temprature. The morphology of the nanocomposites could be controlled by adjusting the reaction temperature and time. The morphology and composition of the nanocomposites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The composites were then applied for electrochemical sensing. The electrochemical investigation for the sensor indicates that it has excellent property to catalyze H2O2, and could detect H2O2 with a low detection limit of 0.2 mu M and wide linear range of 0.5 mu M to 17.8 mM. The present study provides a general platform for the controlled synthesis of nanomaterials and can be extended to other optical, electronic, and magnetic nanocompounds.

引用

页码：5439 / 5449

页数：11

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