학술논문
DRIFTS analysis of the CO.sub.2 detection mechanisms using LaOCl sensing material
Document Type
Report
Source
Sensors & Actuators: B. Chemical. July 22, 2005, Vol. 108 Issue 1-2, p484, 6 p.
Subject
Language
English
ISSN
0925-4005
Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.snb.2004.11.021 Byline: A. Marsal (a), M.A. Centeno (b), J.A. Odriozola (b), A. Cornet (a), J.R. Morante (a) Abstract: Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analyses are described to study the CO.sub.2 sensing mechanisms in LaOCl wet chemically synthesized nanopowders. In order to establish a connection between resistance values and DRIFTS spectra, the two measurements were made simultaneously. A PLS data treatment was then applied to identify which of the absorbed specimens contribute essentially to resistance changes. Furthermore, the obtained results are discussed in light of the overall available information. From this discussion, a sensing mechanism is suggested in agreement with sensor performance and characteristics. Author Affiliation: (a) EME/CeRMAE, Department of Electronics, University of Barcelona, C/Marti iFranques 1, Barcelona 08028, Spain (b) Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avda, Americo Vespucio s/n, 41092 Sevilla, Spain