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FTIR and mass spectrometric study of the interaction of ethanol and ethanol–water with oxide-supported platinum catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
44196 46007 2006 10 PDF Available
Title
FTIR and mass spectrometric study of the interaction of ethanol and ethanol–water with oxide-supported platinum catalysts
Abstract

The formation and stability of surface species formed in the interaction of ethanol and ethanol–water mixture with Al2O3-, TiO2- and CeO2-supported Pt catalysts were studied by FTIR. The changes of the gas phase composition during the above processes were monitored by mass spectrometer. It was found that water enhanced the stability of ethoxide surface species formed in the dissociation of ethanol on Pt catalysts and suppressed the formation of CO. Dehydrogenation of molecularly adsorbed ethanol was proposed as a key reaction step. On the temperature programmed desorption (TPD) spectra of adsorbed ethanol in the case of supported Pt there is a high temperature desorption stage, which was explained by the formation and decomposition of surface acetate species. A possible mechanism of the reaction is discussed.

Keywords
Ethanol steam reforming; Surface species; TPD of ethanol; Gas phase products; Reaction of ethanol with water; Oxide-supported Pt catalysts
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FTIR and mass spectrometric study of the interaction of ethanol and ethanol–water with oxide-supported platinum catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 299, 17 January 2006, Pages 202–211
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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