Electrosynthesis of polypyrrole/sulfonated polyaniline composite films and their applications for ammonia gas sensing

被引：82

作者：

Bai, Hua

Chen, Qi

Li, Chun

Lu, Chanhui

Shi, Gaoquan ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Key Lab Bio Organ Phosphorus & Chem BECC, Beijing 100084, Peoples R China

[2] Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610064, Peoples R China

来源：

POLYMER | 2007年 / 48卷 / 14期

关键词：

polypyrrole; sulfonated polyaniline; composite;

D O I：

10.1016/j.polymer.2007.05.033

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypyrrole/sulfonated polyaniline (PPY/SPANI) composite films have been prepared by direct electrochemical polymerization of pyrrole in an aqueous solution of SPANI. Spectroscopic results demonstrated that the polyanion, SPANI, was incorporated into the PPY matrix as a dopant. The composite films exhibited a higher thermal stability than that of pure PPY. Scanning electron microscopic images revealed that the composite film had smooth and compact morphology. Furthermore, a simple ammonia sensing device based on the composite film showed high sensitivity and a low limit of detection. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4015 / 4020

页数：6

共 32 条

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