Activation by hydrothermal treatment of low surface area ABO3-type perovskite oxide catalysts

被引：46

作者：

Choudhary, VR ^{[1
]}

Banerjee, S ^{[1
]}

Uphade, BS ^{[1
]}

机构：

[1] Natl Chem Lab, Div Chem Engn, Pune 411008, Maharashtra, India

来源：

APPLIED CATALYSIS A-GENERAL | 2000年 / 197卷 / 02期

关键词：

ABO(3)-type perovskite oxides; LaCoO3; LaMnO3; hydrothermal treatment; catalytic combustion of methane;

D O I：

10.1016/S0926-860X(99)00485-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Surface area and methane conversion activity in a complete combustion of methane of LaCoO3 and LaMnO3 perovskite-type oxides are increased very markedly by treating the perovskite-type oxides with water under autogeneous pressure (at 125-300 degrees C) and/or with steam (at 350-800 degrees C) at atmospheric 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 treatment of LaCoO3 and the hydrothermal water treatment of LaMnO3. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：L183 / L186

页数：4

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