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Surface properties and catalytic performance in methane combustion of La0.7Sr0.3Fe1−yGayO3−δ perovskite-type oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
52941 46892 2009 5 PDF Available
Title
Surface properties and catalytic performance in methane combustion of La0.7Sr0.3Fe1−yGayO3−δ perovskite-type oxides
Abstract

The perovskite-type oxides La0.7Sr0.3Fe1−yGayO3−δ (y = 0, 0.3, 0.5, 0.7 and 1), usually applied as oxygen-permeable membrane materials, were investigated as catalysts for the catalytic combustion of methane. The structure and properties of these catalysts were characterized by XRD, BET, XPS and TPR techniques. The catalytic activities were strongly influenced by the Fe contents of the mixed oxides, which was examined in relation to the structure and surface characteristics and may be correlated with their surface oxygen species and redox properties. The optimized catalytic performance was observed for La0.7Sr0.3Fe0.7Ga0.3O3−δ with the highest methane conversion of 91% at 600 °C and the thermal stability test was also described.

Keywords
Catalytic combustion; Methane; Perovskite; La0.7Sr0.3Fe1−yGayO3−δ; Oxygen-permeable membrane materials
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Surface properties and catalytic performance in methane combustion of La0.7Sr0.3Fe1−yGayO3−δ perovskite-type oxides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 513–517
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us