Au-TiO2/Graphene Nanocomposite Film for Electrochemical Sensing of Hydrogen Peroxide and NADH

被引：47
作者：
Fan, Yang [1 ]
Yang, Xin [1 ]
Yang, Chunpeng [2 ]
Liu, Jinhang [1 ]
机构：
[1] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China
[2] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
来源：
ELECTROANALYSIS | 2012年 / 24卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Electrochemical sensors; Graphene; Hydrogen peroxide; NADH; Nanocomposites; GOLD NANOPARTICLES; GRAPHENE; NANOFIBERS; COMPOSITE; OXIDE; AG;
D O I：
10.1002/elan.201200008
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We describe a simple method for preparing Au-TiO2/graphene (GR) nanocomposite by deposition of Au nanoparticles (NPs) on TiO2/GR substrates. The as-prepared Au-TiO2/GR was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The presence of Au NPs on TiO2/GR surface remarkably improves the electrocatalytic activity towards the oxidation of hydrogen peroxide (H2O2) and beta-nicotinamide adenine dinucleotide (NADH). The Au-TiO2/GR modified glassy carbon (GC) electrode exhibits good amperometric response to H2O2 and NADH, with linear range from 10 to 200 mu M and 10 to 240 mu M, and detection limit of 0.7 and 0.2 mu M, respectively.
引用
收藏
页码：1334 / 1339
页数：6
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