High performance gas sensing of CO: comparative tests for (SnO2-based) semiconducting and for electrochemical sensors

Authors
Barsan, N Stetter, JR Findlay, M Gopel, W
Citation
N. Barsan et al., High performance gas sensing of CO: comparative tests for (SnO2-based) semiconducting and for electrochemical sensors, SENS ACTU-B, 66(1-3), 2000, pp. 31-33
Citations number
5
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
66
Issue
1-3
Year of publication
2000
Pages
31 - 33
Database
ISI
SICI code
0925-4005(20000725)66:1-3<31:HPGSOC>2.0.ZU;2-#
Abstract
A comparison of the stability and sensitivity for two different sensor type s (semiconductor SnO2 devices and amperometric electrochemical sensors) has been performed. Sensitivities and drifts in the signal and in the backgrou nd for various concentrations of CO have been studied for thick film SnO2 s ensors (undoped, Pt and Pd doped) over a period in excess of 8 months. Simi lar performance data have been recorded for amperometric sensors over a per iod in excess of 3 years. The two sensor types investigated here were also compared to well known commercial SnO2-based sensors at similar concentrati ons. (C) 2000 Elsevier Science S.A. All rights reserved.