The Sensing Behavior to Volatile Organic Compounds Gas on Polypyrrole Sensor under Humidity Condition

作     者：Jae-Hyun Cho Joon-Boo Yu Sung-Ok Sohn Duk-Dong Lee Jeung-Soo Huh 

作者机构：Department of Material Science MetallurgyKyungpook National UniversitySangyuk-Dong 1370DaeguKorea School of Electronic EngineeringKyungpook National UniversitySangyuk-Dong 1370DaeguKorea 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2006年第35卷第A3期

页      面：65-66页

核心收录：

学科分类：0806[工学-冶金工程] 080202[工学-机械电子工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 

主　　题：VOCs polypyrrole humidity effect gas sensor 

摘      要：Polypyrrole (PPy) powder was synthesized by chemical polymerization at 0℃under atmospheric condition and its layer was prepared by dip coating method on the alumina substrate with interdigitated *** influence of relative humidity (RH 0～70%) to PPy sensor was *** measuring temperature was fixed at 25℃.Methanol and benzene were used as target *** analytic techniques were examined to observe changes in the properties of PPy *** sensitivity of PPy sensor to water vapor was linearly increased with the increasing *** the relative humidity increase from 0% to 70%,the sensitivities to methanol and benzene vapor were reduced,and reduction ratio of sensitivity was 94%, 92.5% at RH 70%,respectively.