Activation by hydrothermal treatment of low surface area ABO(3)-type perovskite oxide catalysts

Authors
Choudhary, VR Banerjee, S Uphade, BS
Citation
Vr. Choudhary et al., Activation by hydrothermal treatment of low surface area ABO(3)-type perovskite oxide catalysts, APP CATAL A, 197(2), 2000, pp. L183-L186
Citations number
7
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
APPLIED CATALYSIS A-GENERAL
ISSN journal
0926860X → ACNP
Volume
197
Issue
2
Year of publication
2000
Pages
L183 - L186
Database
ISI
SICI code
0926-860X(20000501)197:2<L183:ABHTOL>2.0.ZU;2-B
Abstract
Surface area and methane conversion activity in a complete combustion of me thane of LaCoO3 and LaMnO3 perovskite-type oxides are increased very marked ly by treating the perovskite-type oxides with water under autogeneous pres sure (at 125-300 degrees C) and/or with steam (at 350-800 degrees C) at atm ospheric pressure for 4h. The methane combustion activity per unit surface is, however, decreased markedly due to the hydrothermal water treatment of LaCoO3, but it is influenced only to a small extent because of the steam tr eatment of LaCoO3 and the hydrothermal water treatment of LaMnO3. (C) 2000 Elsevier Science B.V. All rights reserved.