Facile synthesis of uniform Pt nanoparticles on polydopamine-reduced graphene oxide and their electrochemical sensing

被引：46
作者：
Zhang, Qian-Li [1 ]
Xu, Tian-Qi [1 ]
Wei, Jie [1 ]
Chen, Jian-Rong [1 ]
Wang, Ai-Jun [2 ]
Feng, Jiu-Ju [2 ]
机构：
[1] Suzhou Univ Sci & Technol, Jiangsu Key Lab Environm Funct Mat, Coll Chem & Biol Engn, Suzhou 215009, Peoples R China
[2] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2013年 / 112卷
基金：
中国国家自然科学基金;
关键词：
Pt nanoparticles; Polydopamine coated graphene oxide; Electrocatalysis; Sensor; HYDROGEN-PEROXIDE; ELECTROCATALYTIC ACTIVITY; OXYGEN REDUCTION; PLATINUM; COMPOSITE; CELLS;
D O I：
10.1016/j.electacta.2013.09.016
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this report, a facile and general approach was developed to prepare uniform Pt nanoparticles (NPs) on reduced graphene oxide (RGO) nanosheets, previously coated with a layer of polydopamine (PDA). The novel composites were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), and electrochemical technique, which had high electrochemically active surface area of 63.3 m(2) g(-1) and high electrocatalytic activity toward the reduction of O-2. Furthermore, the Pt/PDA/RGO modified electrode exhibited a low detection limit of 0.4 mu M (S/N=3) and a high sensitivity of 13.3 mu A mu M-1 cm(-2) for the detection of H2O2 as a model analyte. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：127 / 132
页数：6
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