Sensitive nonenzymatic detection of hydrogen peroxide at nitrogen-doped graphene supported-CoFe nanoparticles

被引：34

作者：

Hassan, Mehboob ^{[1
]}

Jiang, Yue ^{[1
]}

Bo, Xiangjie ^{[1
]}

Zhou, Ming ^{[1
]}

机构：

[1] Northeast Normal Univ, Key Lab Nanobiosensing & Nanobioanal Univ Jilin P, Natl & Local United Engn Lab Power Batteries, Key Lab Polyoxomerolore Sci,Minist Educ,Dept Chem, Changchun 130024, Jilin, Peoples R China

来源：

TALANTA | 2018年 / 188卷

基金：

中国国家自然科学基金;

关键词：

CoFe nanoparticles; Hydrogen peroxide; Nitrogen-doped graphene; Nonenzymatic sensor; Layered double hydroxides; METAL-ORGANIC FRAMEWORK; GLASSY-CARBON ELECTRODE; ELECTROCHEMICAL DETECTION; COPPER-OXIDE; AMPEROMETRIC DETECTION; SILVER NANOPARTICLES; FUNCTIONAL MATERIALS; FACILE FABRICATION; MESOPOROUS CARBON; NANOWIRE ARRAY;

D O I：

10.1016/j.talanta.2018.06.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work, a new enzymeless sensor for hydrogen peroxide (H2O2) was constructed by supporting CoFe nanoparticles on the nitrogen-doped graphene (CoFe/NGR). In this preparation, the graphene oxide (GO) is first used as substrate for the growth of CoFe layered double hydroxides (CoFe LDHs) through hydrothermal reaction. Then, the pyrolysis of CoFe LDHs/GO under NH3 produces CoFe/NGR. By supporting CoFe nanoparticles on NGR support, the electrocatalytic performance of CoFe is dramatically improved because of high electric conductivity of NGR. Consequently, the combination of CoFe and NGR allows the nonenzymatic detection of H2O2. Compared with the unsupported CoFe nanoparticles, the CoFe/NGR displays high electrocatalytic activity towards H2O2, enabling a high sensitivity of 435.7 mu A mM(-1) cm(-2) and low detection limit of 0.28 mu M towards the reduction of H2O2. Especially, the attractive feature of low cost and outstanding analytical performance of CoFe/NGR suggest it great potential in electrochemical sensor and biosensor fabrication.

引用

页码：339 / 348

页数：10

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