NO2 sensing characteristics of ZnO nanorods prepared by hydrothermal method

被引：114

作者：

Cho, Pyeong-Seok ^{[1
]}

Kim, Ki-Won ^{[1
]}

Lee, Jong-Heun ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea

来源：

JOURNAL OF ELECTROCERAMICS | 2006年 / 17卷 / 2-4期

关键词：

ZnO nanorods; air quality sensor; NO2; sensor; hydrothermal synthesis;

D O I：

10.1007/s10832-006-8146-7

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

ZnO nanorods were prepared via a hydrothermal reaction in a solution containing Zn(NO3)(2)(.)6H(2)O, NaOH, cyclohexylamine, ethanol and water, and their NO2 and CO sensing behaviors were investigated. The morphology and agglomeration of ZnO nanorods could be manipulated by controlling the amount of water in the solution, which was explained by the variation in the [OH-] due to an interaction between the water and cyclohexylamine. Sea-urchin-like and well-dispersed ZnO nanorods were prepared at low and high water content, respectively. Well-dispersed ZnO nanorods showed 1.8 fold change in resistance at 1 ppm NO2 while there was no significant change in resistance at 50 ppm CO. The present ZnO nanorods can be used in automated car ventilation systems to detect NO2 in the presence of CO..

引用

页码：975 / 978

页数：4

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