Fabrication of polypyrrole-phenylalanine nano-films with NH3 gas sensitivity

被引：12

作者：

Ihm, Dae-Woo ^{[2
]}

Woo, Hak-Yong ^{[1
]}

Hwang, Chae-Ryong ^{[1
]}

Lee, Yeon-Kyeong ^{[1
]}

Kim, Jin-Yeol ^{[1
]}

机构：

[1] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea

[2] Hoseo Univ, Dept Chem Engn, Asan 336795, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 153卷 / 02期

关键词：

Polypyrrole; Nanoparticle; Gas sensor; Emulsion polymerization; POLYANILINE DISPERSIONS; NANOTUBES; POLYMERS;

D O I：

10.1016/j.snb.2010.11.009

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polypyrrole (PPy) films complexed with phenylalanine were successfully synthesized via one-step emulsion polymerization. By incorporating phenylalanine into the conductive PPy backbone, highly functionalized PPy films have been produced and found to respond to ammonia gas. The chemical sensors based on the PPy-phenylalanine nanoparticle films displayed enhanced reproducible and reversible responses upon exposure to NH3 gas. Their response was strongly dependent on the amount of the phenylalanine. The PPy-phenylalanine films were characterized by UV, IR, and XPS spectroscopy and compared to the PPy films. The gas detection and reversible response mechanism are discussed on the basis of these analysis results. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：421 / 426

页数：6

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