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Catalytic combustion of methane at high temperatures: Cerium effect on PdO/Al2O3 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42734 45939 2009 6 PDF Available
Title
Catalytic combustion of methane at high temperatures: Cerium effect on PdO/Al2O3 catalysts
Abstract

PdO/Al2O3 and PdO/CeO2/Al2O3 catalysts were prepared in order to investigate the role of palladium precursors and cerium addition on the catalytic properties of these systems and on the thermal stability of PdO (active phase) in the catalytic combustion of methane at high temperatures (above 600 °C). The catalysts were obtained from different palladium precursors and presented distinct interactions with CeO2/Al2O3, thermal stability of PdO and catalytic activity. The use of cerium improved PdO thermal stability and the cerium effect was more pronounced on the catalyst prepared from acetylacetonate indicating that a PdO–CeO2 interaction is more favorable in this system.

Graphical abstractThe catalysts applied in the combustion of methane at high temperatures (above 600 °C) were prepared in order to investigate the role of palladium precursors on the catalytic properties of these systems and on the thermal stability of PdO (active phase). PdO/Al2O3 and PdO/CeO2/Al2O3 catalysts were obtained from different palladium precursors with the objective of evaluating CeO2 effect on the thermal stability of PdO and catalytic activity. The best results were obtained with the catalyst prepared with palladium acetylacetonate.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Methane combustion; Palladium catalysts; Cerium effect
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Catalytic combustion of methane at high temperatures: Cerium effect on PdO/Al2O3 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 360, Issue 1, 31 May 2009, Pages 2–7
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