Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 83, Issue 1-3, Pages 222-229Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(01)01044-9
Keywords
NOx sensor; potentiometric sensor; mixed potential; oxide electrode; stabilized zirconia; spinel-type oxide; ZnFe2O4
Ask authors/readers for more resources
Electrochemical sensors using tubular yttria-stabilized zirconia (YSZ) and the spinel-type oxide sensing-electrode (SE) were fabricated and examined for NOx detection at high temperatures. For a mixed-potential type NOx sensor, ZnFe2O4 has been found to give the highest NO sensitivity among the other spinel-type oxides tested and reported to date. The ZnFe2O4-attached device gave a linear correlation between emf and the logarithm of NO2 (NO) concentration from 50 to 436 ppm in the high temperature range 600-700 degreesC. The sensing mechanism of the sensor has been discussed on the basis of the gas adsorption-desorption behavior and the catalytic activity for the oxides examined. (C) 2002 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available