Sensing hydrogen peroxide with a glassy carbon electrode modified with silver nanoparticles, AlOOH and reduced graphene oxide

被引：34

作者：

Yang, Ziyin ^{[1
]}

Qi, Chengcheng ^{[1
]}

Zheng, Xiaohui ^{[1
]}

Zheng, Jianbin ^{[1
]}

机构：

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

来源：

MICROCHIMICA ACTA | 2016年 / 183卷 / 03期

基金：

美国国家科学基金会;

关键词：

Transmission electron microscopy; X-ray diffraction; Cyclic voltammetry; Nanomaterial; Chitosan; Boehmite; Nonenzymatic sensor; NITROGEN-DOPED GRAPHENE; SUBSEQUENT DECORATION; STABILIZING AGENT; AG NANOPARTICLES; ONE-POT; NANOCOMPOSITE; COMPOSITE; GREEN; PERFORMANCE; SURFACE;

D O I：

10.1007/s00604-016-1743-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A nanocomposite consisting of silver nanoparticles (AgNPs), AlOOH and reduced graphene oxide (rGO) was prepared where gamma-AlOOH was employed to modify rGO to obtain a platform for the growth of dispersed AgNPs. A glassy carbon electrode was modified with the nanocomposite in a chitosan matrix to obtain a nonenzymatic sensor for H2O2 with a working voltage of typically -0.3 V (vs. Ag/AgCl). The morphology and composition of the nanocomposites were characterized by transmission electron microscopy, Raman spectra, X-ray spectrometer and X-ray diffraction. Cyclic voltammetry revealed a wide linear range (5.0 mu M to 4.2 mM), a sensitivity of 115.4 mu A center dot mM(-1) center dot cm(-2) and a low detection limit (1.8 mu M).

引用

页码：1131 / 1136

页数：6

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