Selective detection of HCHO gas using mixed oxides of ZnO/ZnSnO3

Mixed oxides of ZnO/ZnSnO3 doped with Au element were prepared by a hydrothermal process. The crystal structure, composition and ceramic microstructure of the powders obtained were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2007-01, Vol.120 (2), p.694-699
Main Authors: Xu, Jiaqiang, Jia, Xiaohua, Lou, Xiangdong, Xi, Guoxi, Han, Jianjun, Gao, Qiaohuan
Format: Article
Language:English
Subjects:
Diffraction
Mixed oxides
Scanning electron microscopy
Selectivity
Sensors
X-ray photoelectron spectroscopy
X-rays
Zinc oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mixed oxides of ZnO/ZnSnO3 doped with Au element were prepared by a hydrothermal process. The crystal structure, composition and ceramic microstructure of the powders obtained were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results show that the product is the mixture of ZnO/ZnSnO3; its particle size is about 500nm with good dispersivity in shape. The sensitivity, selectivity, response and recovery properties of the ZnO/ZnSnO3-based sensors were investigated by mixing a target gas in air. It is found that the sensors have remarkable sensitivity to HCHO vapor and satisfactory selectivity to other gases.
ISSN:0925-4005
DOI:10.1016/j.snb.2006.03.033