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Influence of Pt loading on Al2O3 for the low temperature combustion of methanol with and without a trace amount of ammonia

Hinz, A ; Per-Olof, L and Andersson, Arne LU (2002) In Catalysis Letters 78(1-4). p.177-183
Abstract
Pt/Al2O3 catalysts with platinum contents of 0.1, 1.0 and 3.0 wt% were used for the low temperature combustion of methanol in the absence and the respective presence of a trace amount of ammonia. It is observed that ammonia inhibits the combustion of methanol, which is due to competition between methanol and ammonia for the same sites. For a fixed space velocity and without ammonia in the gas, the performances of the catalysts increase up to a Pt loading of 1.0 wt%. In the presence of ammonia, however, no upper limit of performance is observed with increased Pt content. The results are discussed in terms of both Pt-support interface and the Pt surface being active.
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
metal-support, ammonia, poisoning, Pt/Al2O3, methanol, combustion, interface
in
Catalysis Letters
volume
78
issue
1-4
pages
177 - 183
publisher
Kluwer Academic Publishers
external identifiers
  • wos:000175691600028
  • scopus:0036493921
ISSN
1011-372X
DOI
10.1023/A:1014941825674
language
English
LU publication?
yes
id
2739d61b-2414-4f87-9f6b-f76a6c977cd2 (old id 337655)
date added to LUP
2016-04-01 12:13:49
date last changed
2025-10-14 09:01:53
@article{2739d61b-2414-4f87-9f6b-f76a6c977cd2,
  abstract     = {{Pt/Al2O3 catalysts with platinum contents of 0.1, 1.0 and 3.0 wt% were used for the low temperature combustion of methanol in the absence and the respective presence of a trace amount of ammonia. It is observed that ammonia inhibits the combustion of methanol, which is due to competition between methanol and ammonia for the same sites. For a fixed space velocity and without ammonia in the gas, the performances of the catalysts increase up to a Pt loading of 1.0 wt%. In the presence of ammonia, however, no upper limit of performance is observed with increased Pt content. The results are discussed in terms of both Pt-support interface and the Pt surface being active.}},
  author       = {{Hinz, A and Per-Olof, L and Andersson, Arne}},
  issn         = {{1011-372X}},
  keywords     = {{metal-support; ammonia; poisoning; Pt/Al2O3; methanol; combustion; interface}},
  language     = {{eng}},
  number       = {{1-4}},
  pages        = {{177--183}},
  publisher    = {{Kluwer Academic Publishers}},
  series       = {{Catalysis Letters}},
  title        = {{Influence of Pt loading on Al2O3 for the low temperature combustion of methanol with and without a trace amount of ammonia}},
  url          = {{http://dx.doi.org/10.1023/A:1014941825674}},
  doi          = {{10.1023/A:1014941825674}},
  volume       = {{78}},
  year         = {{2002}},
}