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Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh/Al2O3 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52912 46891 2006 5 PDF Available
Title
Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh/Al2O3 catalysts
Abstract

A series of Rh/Al2O3 catalysts have been prepared using untreated or pre-sulphated alumina supports. The effect of support sulphation on catalyst activity towards propene and propane combustion has been explored as a function of Rh loading. Light-off temperatures for the total oxidation of both hydrocarbons decrease with increasing Rh content, associated with a transition from small oxidic clusters to large metallic Rh particles. Sulphate promotes both propene and propane combustion equally, with the magnitude of promotion exhibiting only a weak loading dependence. Enhanced catalytic performance is accompanied by Rh reduction and sintering.

Keywords
Rhodium; Sulphate; XPS; Propane; Propene; Combustion
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Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh/Al2O3 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 8, August 2006, Pages 566–570
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