Advanced

Hydrogenolysis of ethane on silica-supported cobalt catalysts

Lomot, D; Juszczyk, W; Karpinski, Z and Larsson, Ragnar LU (2002) In Journal of Molecular Catalysis A: Chemical 186(1-2). p.163-172
Abstract
The kinetics of ethane hydrogenolysis over cobalt catalysts supported on silica has been investigated. The results compare well with previous data from Sinfelt et al., Haddad and Goodwin, and Babernics et al. The data were found to be characterized by an isokinetic temperature, T-iso = 490+/-40 K and it was therefore possible to apply the model of selective energy transfer (SET). This approach indicates that either there is an energy transfer from the catalyst by full resonance to a vibration mode of the reactant with v = 680 cm(-1) corresponding to a metal (M)=CH2 bond, or there is an energy transfer to an M-CH3 vibration mode in the region of 400 cm(-1), most likely at 355 cm(-1). In any case, these interpretations indicate that it is... (More)
The kinetics of ethane hydrogenolysis over cobalt catalysts supported on silica has been investigated. The results compare well with previous data from Sinfelt et al., Haddad and Goodwin, and Babernics et al. The data were found to be characterized by an isokinetic temperature, T-iso = 490+/-40 K and it was therefore possible to apply the model of selective energy transfer (SET). This approach indicates that either there is an energy transfer from the catalyst by full resonance to a vibration mode of the reactant with v = 680 cm(-1) corresponding to a metal (M)=CH2 bond, or there is an energy transfer to an M-CH3 vibration mode in the region of 400 cm(-1), most likely at 355 cm(-1). In any case, these interpretations indicate that it is the breaking of one or two metal-carbon bonds that determine the reaction, not the cleavage of the carbon-carbon bond of ethane. This is in agreement with recent views of Sinfelt. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
silica supported catalysts, cobalt, ethane hydrogenolysis, selective, energy transfer
in
Journal of Molecular Catalysis A: Chemical
volume
186
issue
1-2
pages
163 - 172
publisher
Elsevier
external identifiers
  • wos:000176872900019
  • scopus:0037158273
ISSN
1381-1169
DOI
10.1016/S1381-1169(02)00119-X
language
English
LU publication?
yes
id
eea93e29-4b86-416b-b6fb-8d90222135c5 (old id 333265)
date added to LUP
2007-11-16 14:39:20
date last changed
2017-01-01 06:44:37
@article{eea93e29-4b86-416b-b6fb-8d90222135c5,
  abstract     = {The kinetics of ethane hydrogenolysis over cobalt catalysts supported on silica has been investigated. The results compare well with previous data from Sinfelt et al., Haddad and Goodwin, and Babernics et al. The data were found to be characterized by an isokinetic temperature, T-iso = 490+/-40 K and it was therefore possible to apply the model of selective energy transfer (SET). This approach indicates that either there is an energy transfer from the catalyst by full resonance to a vibration mode of the reactant with v = 680 cm(-1) corresponding to a metal (M)=CH2 bond, or there is an energy transfer to an M-CH3 vibration mode in the region of 400 cm(-1), most likely at 355 cm(-1). In any case, these interpretations indicate that it is the breaking of one or two metal-carbon bonds that determine the reaction, not the cleavage of the carbon-carbon bond of ethane. This is in agreement with recent views of Sinfelt.},
  author       = {Lomot, D and Juszczyk, W and Karpinski, Z and Larsson, Ragnar},
  issn         = {1381-1169},
  keyword      = {silica supported catalysts,cobalt,ethane hydrogenolysis,selective,energy transfer},
  language     = {eng},
  number       = {1-2},
  pages        = {163--172},
  publisher    = {Elsevier},
  series       = {Journal of Molecular Catalysis A: Chemical},
  title        = {Hydrogenolysis of ethane on silica-supported cobalt catalysts},
  url          = {http://dx.doi.org/10.1016/S1381-1169(02)00119-X},
  volume       = {186},
  year         = {2002},
}