Indexed by:
期刊论文
First Author:
Sun, Fangjie
Correspondence Author:
Li, XG (reprint author), Dalian Univ Technol, Key Lab Liaoning Integrated Circuits Technol, Inst Sensing Technol, Sch Elect Sci & Technol, Dalian 116024, Peoples R China.
Co-author:
Li, Xiaogan,Liu, Lipeng,Wang, Jing
Date of Publication:
2013-07-31
Journal:
SENSORS AND ACTUATORS B-CHEMICAL
Included Journals:
SCIE、EI
Document Type:
J
Volume:
184
Page Number:
220-227
ISSN No.:
0925-4005
Key Words:
Mixed potential gas sensor; Zn2SnO4 + SnO2; ZnCo2O4; Carbon monoxide;
Propane
Abstract:
The sensing performance of the Zn-Sn-O and ZnCo2O4 oxide electrodes to carbon monoxide and propane at 600 degrees C was investigated. The planar-type mixed-potential sensor coupled with Zn2SnO4 + SnO2 as sensing electrode indicated a linear relationship between the responses of the sensor and the logarithm of CO concentrations within a range from 60 ppm to 1500 ppm. The sensor showed good signal reproducibility at 600 degrees C while some interference from NO2 and C3H8 were also observed. On the other hand, the sensor using the ZnCo2O4 sensing electrode indicated a higher response to propane and excellent selectivity to NO2 and CO at 600 degrees C. These two new sensing electrodes demonstrated a significant potential to be employed for the selective mixed-potential CO/C3H8 sensors for online monitoring automobile gas emissions. (C) 2013 Elsevier B. V. All rights reserved.
Translation or Not:
no
