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On the stepwise change of activation energies in the hydrodechlorination of chlorobenzene over supported nickel

Keane, Mark A and Larsson, Ragnar LU (2008) In Catalysis Communications 9(3). p.333-336
Abstract
Kinetics of chlorobenzene hydrodechlorination have been measured over Ni on SiO2, Al2O3, MgO, activated carbon and graphite. A stepwise variation of E-a is analysed using the selective energy transfer model where E-a is identified as the vibrational energy associated with an excitation of the chlorobenzene out-of-plane C-H bending mode. Variation of E-a with vibrational quantum number yields a vibrational frequency of 749 cm(-1) and a value (-1.1 cm(-1)) for the anharmonicity term, which is characteristic of bending vibrational modes. Our analysis suggests that the reacting species are weakly adsorbed on the catalyst: heat of adsorption = -0.31 kJ mol(-1).
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
apparent activation energy, chlorobenzene, selective energy transfer model, catalytic hydrodechlorination, anharmonicity, heat of, adsorption
in
Catalysis Communications
volume
9
issue
3
pages
333 - 336
publisher
Elsevier
external identifiers
  • wos:000252293400003
  • scopus:36549044459
ISSN
1566-7367
DOI
10.1016/j.catcom.2007.06.024
language
English
LU publication?
yes
id
759d94dd-c61a-45fd-960a-35a1d9890e66 (old id 1199955)
date added to LUP
2008-09-11 14:04:57
date last changed
2017-01-01 04:29:33
@article{759d94dd-c61a-45fd-960a-35a1d9890e66,
  abstract     = {Kinetics of chlorobenzene hydrodechlorination have been measured over Ni on SiO2, Al2O3, MgO, activated carbon and graphite. A stepwise variation of E-a is analysed using the selective energy transfer model where E-a is identified as the vibrational energy associated with an excitation of the chlorobenzene out-of-plane C-H bending mode. Variation of E-a with vibrational quantum number yields a vibrational frequency of 749 cm(-1) and a value (-1.1 cm(-1)) for the anharmonicity term, which is characteristic of bending vibrational modes. Our analysis suggests that the reacting species are weakly adsorbed on the catalyst: heat of adsorption = -0.31 kJ mol(-1).},
  author       = {Keane, Mark A and Larsson, Ragnar},
  issn         = {1566-7367},
  keyword      = {apparent activation energy,chlorobenzene,selective energy transfer model,catalytic hydrodechlorination,anharmonicity,heat of,adsorption},
  language     = {eng},
  number       = {3},
  pages        = {333--336},
  publisher    = {Elsevier},
  series       = {Catalysis Communications},
  title        = {On the stepwise change of activation energies in the hydrodechlorination of chlorobenzene over supported nickel},
  url          = {http://dx.doi.org/10.1016/j.catcom.2007.06.024},
  volume       = {9},
  year         = {2008},
}