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Oxidation Catalysis on YBa2Cu3O6 + x

Hansen, Staffan LU ; Otamiri, J; Bovin, JO and Andersson, Arne LU (1988) In Nature 334(6178). p.143-145
Abstract
Mild oxidation catalysts are used to product a wide range industrial chemicals from hydrocarbons, whereas deep oxidation catalysts yield CO2 and are becoming important in the cleaning of emissions from combustion of carbonaceous fuels. Here we report on a catalyst1 that facilitates both mild and deep oxidation of toluene in the presence of molecular oxygen and ammonia. At low partial pressures of O2a YBa2Cu3O6+x catalyst is very active in the formation of benzonitrile, but at higher O2 partial pressures it preferentially catalyses formation of CO2. This sharp transition in product selectivity is reversible and occurs at a defined partial pressure of O2. At transition the bulk compostition of the catalyst is close to YBa2Cu3O6 (x≈0).... (More)
Mild oxidation catalysts are used to product a wide range industrial chemicals from hydrocarbons, whereas deep oxidation catalysts yield CO2 and are becoming important in the cleaning of emissions from combustion of carbonaceous fuels. Here we report on a catalyst1 that facilitates both mild and deep oxidation of toluene in the presence of molecular oxygen and ammonia. At low partial pressures of O2a YBa2Cu3O6+x catalyst is very active in the formation of benzonitrile, but at higher O2 partial pressures it preferentially catalyses formation of CO2. This sharp transition in product selectivity is reversible and occurs at a defined partial pressure of O2. At transition the bulk compostition of the catalyst is close to YBa2Cu3O6 (x≈0). Increasing the content of lattice oxygen (x > 0) makes the catalyst selective for CO2 formation (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature
volume
334
issue
6178
pages
143 - 145
publisher
Nature Publishing Group
external identifiers
  • wos:A1988P227300046
  • scopus:0024047603
ISSN
0028-0836
DOI
10.1038/334143a0
language
English
LU publication?
yes
id
5cf95f24-c60e-4ada-a89c-77e424395b1a (old id 3914643)
date added to LUP
2013-07-01 13:31:04
date last changed
2017-07-30 03:38:47
@article{5cf95f24-c60e-4ada-a89c-77e424395b1a,
  abstract     = {Mild oxidation catalysts are used to product a wide range industrial chemicals from hydrocarbons, whereas deep oxidation catalysts yield CO2 and are becoming important in the cleaning of emissions from combustion of carbonaceous fuels. Here we report on a catalyst1 that facilitates both mild and deep oxidation of toluene in the presence of molecular oxygen and ammonia. At low partial pressures of O2a YBa2Cu3O6+x catalyst is very active in the formation of benzonitrile, but at higher O2 partial pressures it preferentially catalyses formation of CO2. This sharp transition in product selectivity is reversible and occurs at a defined partial pressure of O2. At transition the bulk compostition of the catalyst is close to YBa2Cu3O6 (x≈0). Increasing the content of lattice oxygen (x > 0) makes the catalyst selective for CO2 formation},
  author       = {Hansen, Staffan and Otamiri, J and Bovin, JO and Andersson, Arne},
  issn         = {0028-0836},
  language     = {eng},
  number       = {6178},
  pages        = {143--145},
  publisher    = {Nature Publishing Group},
  series       = {Nature},
  title        = {Oxidation Catalysis on YBa2Cu3O6 + x},
  url          = {http://dx.doi.org/10.1038/334143a0},
  volume       = {334},
  year         = {1988},
}