Electrochemical modification of poly-aniline films in the presence of guaiacol-sulfonic acid

被引：30

作者：

Milczarek, Grzegorz ^{[1
]}

机构：

[1] Poznan Univ Tech, Inst Chem & Tech Electrochem, PL-60695 Poznan, Poland

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 01期

关键词：

polyaniline; modified electrode; guaiacol-sulfonic acid; ascorbic acid;

D O I：

10.1016/j.elecom.2006.08.046

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Poly-aniline (PANI) films when subjected to cyclic voltammetry in the presence of guaiacol-sulfonic acid (GSA) undergo a modification which alters their red-ox activity and extends electroactivity to neutral pH. A plausible mechanism of the modification reaction is discussed. The PANI-GSA film modified electrodes electrocatalyze the oxidation of ascorbic acid (AA) in neutral phosphate buffer (pH 7.4) with ca. 250 mV reduction of the oxidation peak potential. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：123 / 127

页数：5

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