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Isotopic transient study of methanol decomposition over noble metal/ceria catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52977 46892 2009 5 PDF Available
Title
Isotopic transient study of methanol decomposition over noble metal/ceria catalysts
Abstract

Methanol decomposition reaction was studied over combustion-synthesized noble metal (Pt, Pd, Rh)/ceria catalysts using the steady-state isotopic transient kinetic analysis (SSITKA) method. The 13C-containing reactants and products were monitored following a 12CH3OH/Ar/He → 13CH3OH/He switch. Average life-time and concentration of adsorbed intermediate species which lead to CO, and overall reaction rate at 220 °C, were determined. Significant amounts of active intermediate species were formed on the ceria support or/and metal-ceria interface. A clear concave shape of the curve of the semilogarithmic plot of the molar fraction of CO versus time was indicative of a parallel mechanism followed for its formation.

Keywords
Methanol decomposition; SSITKA; Noble metal; Ceria; Hydrogen
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Isotopic transient study of methanol decomposition over noble metal/ceria catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 682–686
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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