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Effect of Ru on LaCoO3 perovskite-derived catalyst properties tested in oxidative reforming of diesel

Paper ID Volume ID Publish Year Pages File Format Full-Text
48901 46526 2007 12 PDF Available
Title
Effect of Ru on LaCoO3 perovskite-derived catalyst properties tested in oxidative reforming of diesel
Abstract

The oxidative reforming of diesel over Co/La2O3 and Ru–Co/La2O3 catalysts derived from LaCoO3 perovskite precursors was studied. Physicochemical characterization by XPS, TPR and XRD revealed that the incorporation of Ru to LaCoO3 produces changes in LaCoO3 evidenced by a smaller size of the LaCoO3 particles and cobalt segregation on the LaCoO3 surface. The modifications in the structure of LaCoO3 induced by the addition of Ru directly affect the dispersion and morphology of Co particles developed under the reaction. The active phases derived from pretreatment of perovskites evolve differently with time on stream, being observed that the presence of a greater proportion of perovskite phase in the Ru/LaCoO3 sample produces an increase in catalyst stability. TPD-MS analysis also indicates that bulk oxygen release from the Ru–Co/La2O3 sample could improve its catalytic behaviour. The characterization of used samples reveals that improvements in the cobalt surface concentration and Co–La2O3 interactions contribute to the better catalytic stability of the Ru–Co/La2O3-derived catalyst.

Keywords
LaCoO3 perovskite; Ru; Oxidative reforming; Diesel; Hydrogen production
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Effect of Ru on LaCoO3 perovskite-derived catalyst properties tested in oxidative reforming of diesel
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 73, Issues 3–4, 11 May 2007, Pages 247–258
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
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Any Questions? feel free to contact us