One-step synthesis of 3D dendritic gold@polypyrrole nanocomposites via a simple self-assembly method and their electrocatalysis for H2O2

被引：22

作者：

Xue, Kaiwen ^{[1
]}

Xu, Yang ^{[2
]}

Song, Wenbo ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

[2] Jilin Univ, Stomatol Coll, Changchun 130021, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2012年 / 60卷

基金：

中国国家自然科学基金;

关键词：

Gold nanoparticles; Polypyrrole; Nanocomposite; Electrocatalysis; GLASSY-CARBON ELECTRODE; METAL NANOPARTICLES; OXIDATION; FILMS; VOLTAMMETRY; COMPOSITES; BIOSENSORS; REDUCTION; CATALYSIS; DYNAMICS;

D O I：

10.1016/j.electacta.2011.11.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Novel spherical three-dimensional (3D) dendritic gold@polypyrrole (PPy) nanocomposites were successfully synthesized by reacting pyrrole monomer with chloroauric acid (HAuCl4) through a self-assembly process in the presence of poly(sodium 4-styrenesulfonate) (PSS), which acts as both dopant and surfactant. The formation probability and the size of the dendritic gold@PPy nanocomposites depended on the concentrations of PSS, pyrrole and HAuCl4, and reaction temperature. The dendritic AuNPs@PPy nanocomposites were confirmed by scanning electron microscopy, transmission electron microscopy. X-ray diffraction, and X-ray photoelectron spectroscopy. In addition, the AuNPs@PPy nanocomposites had high electrocatalytic activity toward H2O2, which showed excellent potential application in sensing. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

引用

页码：71 / 77

页数：7

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