文献类型：期刊文献

中文题名：Nanocomposites Preparation and Its Application to Sensor

英文题名：Nanocomposites Preparation and Its Application to Sensor

作者：Dianqing Li[1];Zhangfa Tong[2];Xiaowei Huang[3];Shouli Bai[1];Ruixian Luo[1]

第一作者：Dianqing Li

机构：[1]State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;[2]College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;[3]Colloge of Biochemistry Engineering, Beijing Union University, Beijing 100023, China

第一机构：State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

年份：2006

卷号：35

期号：A03

起止页码：29-32

中文期刊名：稀有金属材料与工程

外文期刊名：Rare Metal Materials and Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：This research was supported by the National Natural Science Foundation of China （No. 20577001）；Beijing Natural Science Foundation （No. 8042016 and 8062011）.

语种：英文

中文关键词：ZnO-SnO2;In2O3-SnO2;nanocomposites;gas sensor;sensing properties

外文关键词：ZnO-SnO2; In2O3-SnO2; nanocomposites; gas sensor; sensing properties

摘要：The nanocomposites of ZnO-SnO_2 and In_2O_3-SnO_2 were prepared by wet chemical co-precipitation method as a novel semiconductor gas sensing materials for the detection of environmentally toxic gases.Controlled preparation parameters were critical towards the grain size and crystallinity of the obtained nanocomposites.The results showed that these nanocomposites exhibited high sensitivity and selectivity for the detection of CO and NO_x,and the sensitivity depended on the composition of the composite,calcination temperature and operating temperature.The gas sensing properties of the sensors were further improved through incorporation of dopants and surface additives.The gas sensing mechanism was also discussed by X-ray photoelectron spectroscopic (XPS) and temperature-programmed desorption (TPD) studies.
The nanocomposites of ZnO-SnO2 and In2O3-SnO2 were prepared by wet chemical co-precipitation method as a novel semiconductor gas sensing materials for the detection of environmentally toxic gases. Controlled preparation parameters were critical towards the grain size and crystallinity of the obtained nanocomposites. The results showed that these nanocomposites exhibited high sensitivity and selectivity for the detection of CO and NOx, and the sensitivity depended on the composition of the composite, calcination temperature and operating temperature. The gas sensing properties of the sensors were further improved through incorporation of dopants and surface additives. The gas sensing mechanism was also discussed by X-ray photoelectron spectroscopic （XPS） and temperature-programmed desorption （TPD） studies.