Gas and humidity response of iron oxide - Polypyrrole nanocomposites

被引：99

作者：

Tandon, RP ^{[1
]}

Tripathy, MR

Arora, AK

Hotchandani, S

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

[2] Univ Delhi, Keshav Mahavidyalaya, Delhi 110035, India

[3] UQTR, Grp Rech Biol Vegetale, Trois Rivieres, PQ G9A 5H7, Canada

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 114卷 / 02期

关键词：

gas sensor; humidity sensor; polypyrrole;

D O I：

10.1016/j.snb.2005.07.022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nanocomposites of PPY-Fe3O4 have been synthesized using an emulsion polymerization method in aqueous solution. The resulting polymer composites possessed much higher conductivity as compared to pure polypyrrole (PPY) and the conductivity decreased with increasing the PPY content. The composite exhibited fairly high sensitivity to relative humidity and some commonly used gases (N-2, O-2 and CO2). Changes in resistance for nitrogen and oxygen gas have also been reported. Based on these results, it is expected that these composites may furnish a simple means of humidity and gas sensing. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：768 / 773

页数：6

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