Title
Gas sensing response of NiO nanoparticle films made by reactive gas deposition
Date Issued
2009
Access level
metadata only access
Resource Type
journal article
Author(s)
Luyo C.
Ionescu R.
Topalian Z.
Llobet E.
Granqvist C.
Heszler P.
Universidad Nacional de Ingeniería
Universidad Nacional de Ingeniería
Abstract
Nanocrystalline films comprised of NiO particles were prepared by advanced reactive gas evaporation and were investigated for gas sensing applications, specifically for detecting reducing (H2S) and oxidizing (NO2) species. The films were studied in as-deposited state and after annealing at temperatures up to 400 °C, and the sensors were operated from room temperature to 325 °C. The optimal operating temperature was in the 150-162 °C range for H2S and in the 100-125 °C range for NO2. We believe that this is the first report of high-sensitivity detection of H2S with NiO-based sensors, as well as the first proof that such sensors can work at room temperature. © 2008 Elsevier B.V. All rights reserved.
Start page
14
End page
20
Volume
138
Issue
1
Language
English
OCDE Knowledge area
Recubrimiento, Películas
Electroquímica
Subjects
Scopus EID
2-s2.0-63749131279
Source
Sensors and Actuators, B: Chemical
ISSN of the container
09254005
Sponsor(s)
C. Luyo, L.F. Reyes, and W. Estrada gratefully acknowledge financial support from the International Science Programme at Uppsala University. R. Ionescu acknowledges a ‘Juan de la Cierva’ research fellowship funded by the Spanish Ministry for Science and Education (MEC). The writing of this research paper was possible because of the award of a ‘José Castillejo’ mobility grant to R. Ionescu by MEC.
Sources of information:
Directorio de Producción Científica
Scopus