Electroreduction of nitrite at an electrode modified with polypyrrole nanowires

被引：48

作者：

Tian, Y ^{[1
]}

Wang, JX ^{[1
]}

Wang, Z ^{[1
]}

Wang, SC ^{[1
]}

机构：

[1] Tianjin Univ, State Key Lab Chem Engn, Chem Engn Res Ctr, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

SYNTHETIC METALS | 2004年 / 143卷 / 03期

关键词：

polypyrrole; chemically modified electrode; nitrite; nanowires;

D O I：

10.1016/j.synthmet.2003.12.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the electrochemical behavior of polypyrrole nanowire modified electrode is described. The modified electrode has very good activity toward nitrite electroreduction. The electroreduction current is linearly dependent on the concentration of nitrite. The experimental parameters such as thickness of polypyrrole film, pH, and temperature of the test solution, and scan rate which have effects on the reduction current were examined. The result shows that the electroreduction current increases with the increasing of the polypyrrole film thickness, acidity of electrolyte solution, temperature, and scan rate. The good linearity between the electroreduction current and the concentration of nitrite makes it possible to determine nitrite concentration accurately in the range of 2.28 x 10(-4) to 0.020 M. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：309 / 313

页数：5

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