Electro-assisted fabrication of layer-by-layer assembled poly(2,5-dimethoxyaniline)/phosphotungstic acid modified electrode and electrocatalytic oxidation of ascorbic acid

被引：43
|
作者：
Ragupathy, Dhanusuraman [1 ]
Gopalan, Anantha Iyengar [1 ,2 ]
Lee, Kwang-Pill [1 ,2 ]
Manesh, Kalayil Manian [1 ]
机构：
[1] Kyungpook Natl Univ, Grad Sch, Dept Chem, Taegu 702701, South Korea
[2] Kyungpook Natl Univ, Dept Nanosci & Nanotechnol, Taegu 702701, South Korea
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 04期
关键词：
layer-by-layer; conducting polymer; phosphotungstic acid; electro catalytic behaviour; ascorbic acid;
D O I：
10.1016/j.elecom.2008.01.025
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Multilayer films, consisting of poly(2,5-dimethoxyaniline) (PDMA) and phosphotungstic acid (PTA) as alternative layers are assembled on a glassy carbon (GC) electrode to obtain (PDMA/PTA)(n) layer-by-layer (LBL) film, (where n = number of layers of PDMA/PTA) through electrochemical polymerization and chemical treatment with PTA. The film assembly, electrochemical property as well as the electroactivity of GC/(PDMA/PTA)(n) toward oxidation of ascorbic acid (AA) were investigated. The enhanced electrocatalytic activity of LBL (PDMA/PTA)(n) film towards AA was attributed to the existence of tungsten atoms in the interlayer of PDMA that augments the electron transfer processes. (c) 2008 Elsevier B.V. All rights reserved.
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页码：527 / 530
页数：4
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