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Ammoxidation of Toluene by YBa2Cu3O6 + x and Copper Oxides. Activity and XPS Studies

Otamiri, JC; Andersson, SLT and Andersson, Arne LU (1990) In Applied Catalysis 65(1). p.159-174
Abstract
The catalytic activities of YBa2Cu3O6+x and copper oxides have been studied in the ammoxidation of toluene. At low oxygen pressures, over YBa2Cu3O6+x selective ammoxidation to benzonitrile occurs, whereas at high pressures, only total combustion of toluene to carbon oxides is observed. X-ray photoelectron spectroscopy (XPS) analysis of YBa2Cu3O6+x catalysts indicates predominance of Cu(I) states under partial ammoxidation conditions, while under total oxidation conditions, Cu(II) states are predominant. Comparison with the catalytic performance of copper oxide catalysts shows that differences do exist. The catalysis by YBa2Cu3O6+x is greatly influenced by the oxygen content of the bulk material despite its surface composition.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Catalysis
volume
65
issue
1
pages
159 - 174
publisher
Elsevier
external identifiers
  • wos:A1990EE81200014
  • scopus:0025699261
ISSN
0166-9834
DOI
10.1016/S0166-9834(00)81595-X
language
English
LU publication?
yes
id
05f9cb58-4614-4810-ac8d-6e9e99816a7b (old id 3914612)
date added to LUP
2013-07-01 13:51:43
date last changed
2017-03-19 04:11:37
@article{05f9cb58-4614-4810-ac8d-6e9e99816a7b,
  abstract     = {The catalytic activities of YBa2Cu3O6+x and copper oxides have been studied in the ammoxidation of toluene. At low oxygen pressures, over YBa2Cu3O6+x selective ammoxidation to benzonitrile occurs, whereas at high pressures, only total combustion of toluene to carbon oxides is observed. X-ray photoelectron spectroscopy (XPS) analysis of YBa2Cu3O6+x catalysts indicates predominance of Cu(I) states under partial ammoxidation conditions, while under total oxidation conditions, Cu(II) states are predominant. Comparison with the catalytic performance of copper oxide catalysts shows that differences do exist. The catalysis by YBa2Cu3O6+x is greatly influenced by the oxygen content of the bulk material despite its surface composition.},
  author       = {Otamiri, JC and Andersson, SLT and Andersson, Arne},
  issn         = {0166-9834},
  language     = {eng},
  number       = {1},
  pages        = {159--174},
  publisher    = {Elsevier},
  series       = {Applied Catalysis},
  title        = {Ammoxidation of Toluene by YBa2Cu3O6 + x and Copper Oxides. Activity and XPS Studies},
  url          = {http://dx.doi.org/10.1016/S0166-9834(00)81595-X},
  volume       = {65},
  year         = {1990},
}