NDLI: Application of the Selective Energy Transfer Model to Account for an Isokinetic Response in the Gas Phase Reductive Cleavage of Hydroxyl, Carbonyl and Carboxyl Groups from Benzene Over Nickel/Silica

Content Provider	Springer Nature Link
Author	Keane, Mark A. Larsson, Ragnar
Copyright Year	2009
Abstract	The gas phase hydrodeoxygenation of a series of aromatic alcohols, aldehydes and acids has been examined over Ni/SiO2. Compensation behaviour is established with an isokinetic temperature (518 ± 21 K) that is consistent with with the point of intersection of the Arrhenius lines. This is accounted for using the Selective Energy Transfer model that is based on resonance between the catalytic Ni–H vibration and out-of plane C–H vibrations of the aromatic reactants with a transferral of resonance energy from the catalyst to generate the “activated complex”. The calculated wave number of this vibration mode is 720 ± 29 cm−1 with an associated anhamonicity of −3.3 ± 0.9 cm−1. Our analysis suggests that the oxygenated aromatic is weakly adsorbed on the catalyst and surface mobility facilitates reaction with adsorbed hydrogen atoms.
Starting Page	93
Ending Page	103
Page Count	11
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	129
Issue Number	1-2
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2009-01-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Isokinetic temperature Selective energy transfer model Anharmonicity Catalytic hydrodeoxygenation Ni/silica Pharmacy Industrial Chemistry/Chemical Engineering Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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Application of the Selective Energy Transfer Model to Account for an Isokinetic Response in the Gas Phase Reductive Cleavage of Hydroxyl, Carbonyl and Carboxyl Groups from Benzene Over Nickel/Silica