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Catalytic decomposition of formic acid on oxide catalysts - an impulse-oscillation model approach to the unimolecular mechanism

Borowiak, MA; Jamroz, MH and Larsson, Ragnar LU (1999) In Journal of Molecular Catalysis A: Chemical 139(1). p.97-104
Abstract
An impulse-oscillation model (IOM) was used for a time description of catalytic acts in the reactions of catalytic decomposition of formic acid on oxide catalysts. The results of computation using the model show that for the dehydrogenation reaction the most important modes are the OCO bending in bidentate adsorbed formate ion and OH stretching on the catalyst surface while for the dehydration the asymmetric stretching OCO mode in the monodentate adsorbed formate ion and metal-oxygen stretching mode on oxide catalysts. These findings confirm the results obtained [R. Larsson, M,H. Jamroz, M.A. Borowiak, J. Mel. Catal. A: Chem. 129 (1998) 41] in our previous analysis of the SET model. Assuming the synchronization of eight vibrators to be... (More)
An impulse-oscillation model (IOM) was used for a time description of catalytic acts in the reactions of catalytic decomposition of formic acid on oxide catalysts. The results of computation using the model show that for the dehydrogenation reaction the most important modes are the OCO bending in bidentate adsorbed formate ion and OH stretching on the catalyst surface while for the dehydration the asymmetric stretching OCO mode in the monodentate adsorbed formate ion and metal-oxygen stretching mode on oxide catalysts. These findings confirm the results obtained [R. Larsson, M,H. Jamroz, M.A. Borowiak, J. Mel. Catal. A: Chem. 129 (1998) 41] in our previous analysis of the SET model. Assuming the synchronization of eight vibrators to be important in the reactions system considered in the present paper, the IOM method predicted ranges of wavenumbers which are close to those wavenumbers found starting from the idea of a stepwise variation of activation energies. The best ranges for the dehydrogenation reaction are proposed. (C) 1999 Published by Elsevier Science B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
impulse oscillation model, catalytic decomposition, formic acid
in
Journal of Molecular Catalysis A: Chemical
volume
139
issue
1
pages
97 - 104
publisher
Elsevier
external identifiers
  • wos:000078068400010
  • scopus:0345040732
ISSN
1381-1169
DOI
10.1016/S1381-1169(98)00189-7
language
English
LU publication?
yes
id
7754993e-a27a-466f-b9c5-5cb9a3e5e141 (old id 3917093)
date added to LUP
2013-07-03 10:46:16
date last changed
2017-01-01 07:07:23
@article{7754993e-a27a-466f-b9c5-5cb9a3e5e141,
  abstract     = {An impulse-oscillation model (IOM) was used for a time description of catalytic acts in the reactions of catalytic decomposition of formic acid on oxide catalysts. The results of computation using the model show that for the dehydrogenation reaction the most important modes are the OCO bending in bidentate adsorbed formate ion and OH stretching on the catalyst surface while for the dehydration the asymmetric stretching OCO mode in the monodentate adsorbed formate ion and metal-oxygen stretching mode on oxide catalysts. These findings confirm the results obtained [R. Larsson, M,H. Jamroz, M.A. Borowiak, J. Mel. Catal. A: Chem. 129 (1998) 41] in our previous analysis of the SET model. Assuming the synchronization of eight vibrators to be important in the reactions system considered in the present paper, the IOM method predicted ranges of wavenumbers which are close to those wavenumbers found starting from the idea of a stepwise variation of activation energies. The best ranges for the dehydrogenation reaction are proposed. (C) 1999 Published by Elsevier Science B.V. All rights reserved.},
  author       = {Borowiak, MA and Jamroz, MH and Larsson, Ragnar},
  issn         = {1381-1169},
  keyword      = {impulse oscillation model,catalytic decomposition,formic acid},
  language     = {eng},
  number       = {1},
  pages        = {97--104},
  publisher    = {Elsevier},
  series       = {Journal of Molecular Catalysis A: Chemical},
  title        = {Catalytic decomposition of formic acid on oxide catalysts - an impulse-oscillation model approach to the unimolecular mechanism},
  url          = {http://dx.doi.org/10.1016/S1381-1169(98)00189-7},
  volume       = {139},
  year         = {1999},
}