Enhancements in conductivity and Raman spectroscopy of polypyrrole electropolymerized on electrochemically roughened Au substrates

被引：13

作者：

Liu, YC

Yang, KH

Wang, CC

机构：

[1] Van Nung Inst Technol, Dept Chem Engn, Chungli, Tao Yuan, Taiwan

[2] Van Nung Inst Technol, Dept Environm Engn, Chungli, Tao Yuan, Taiwan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2003年 / 549卷

关键词：

conducting polymer; X-ray photoelectron spectroscopy; conductivity;

D O I：

10.1016/S0022-0728(03)00282-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, gold substrates were first roughened by a triangular-wave oxidation-reduction cycle (ORC) in an aqueous solution containing 0.1 N HCl, and then polypyrrole (PPy) films were electrochemically deposited on the roughened gold substrates. In ORC treatment, Au- and Cl-containing complexes with nanostructure were formed on the surface of gold. The nanocomplexes show a catalytic electroxidation pathway for the polymerization of PPy. The characteristics of PPy deposited on this roughened Au are distinct from those of PPy deposited on the polished Au without further ORC treatment. They include the demonstration of the surface-enhanced Raman scattering effect, a higher conductivity and an increase in oxidation level of the prepared PPy. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：151 / 155

页数：5

共 32 条

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