Title of article
Au-doped WO3-based sensor for NO2 detection at low operating temperature
Author/Authors
Xia، نويسنده , , Huijuan and Wang، نويسنده , , Yan and Kong، نويسنده , , Fanhong and Wang، نويسنده , , Shurong and Zhu، نويسنده , , Baolin and Guo، نويسنده , , Xianzhi and Zhang، نويسنده , , Jun and Wang، نويسنده , , Yanmei and Wu، نويسنده , , Shihua، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
7
From page
133
To page
139
Abstract
Pure and Au-doped WO3 powders for NO2 gas detection were prepared by a colloidal chemical method, and characterized via X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The NO2 sensing properties of the sensors based on pure and Au-doped WO3 powders were investigated by HW-30A gas sensing measurement. The results showed that the gas sensing properties of the doped WO3 sensors were superior to those of the undoped one. Especially, the 1.0 wt% Au-doped WO3 sensor possessed larger response, better selectivity, faster response/recovery and better longer term stability to NO2 than the others at relatively low operating temperature (150 °C).
Keywords
Au-doped WO3 , Structural characterization , NO2 , low temperature , Gas sensor
Journal title
Sensors and Actuators B: Chemical
Serial Year
2008
Journal title
Sensors and Actuators B: Chemical
Record number
1436487
Link To Document