EFFECT OF DOPING METALS ON THE KINETICS OF INTERACTION OF SNO2 THIN-FILMS WITH OXYGEN

Authors
SAFONOVA OV RUMYANTSEVA MN LABEAU M GASKOV AM
Citation
Ov. Safonova et al., EFFECT OF DOPING METALS ON THE KINETICS OF INTERACTION OF SNO2 THIN-FILMS WITH OXYGEN, Journal of materials chemistry (Print), 8(7), 1998, pp. 1577-1581
Citations number
12
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry (Print) → ACNP
ISSN journal
09599428
Volume
8
Issue
7
Year of publication
1998
Pages
1577 - 1581
Database
ISI
SICI code
0959-9428(1998)8:7<1577:EODMOT>2.0.ZU;2-K
Abstract
The effect of changing the doping metal (M = Cu, Ni, Pd, Pt) on the ki netics of oxygen exchange reactions of polycrystalline SnO2 thin films with gaseous oxygen was studied in situ by conductance measurements. It was found that preliminary annealing of SnO2-based materials in ine rt (N-2) and active (100 ppm H2S in N-2) atmospheres affects the kinet ics of their reaction with oxygen. Two kinetic models describing the i nteractions of semiconducting porous materials with gases, i.e., diffu sion and surface chemical reactions, are considered.