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Ethanol adsorption, decomposition and oxidation on Ir(111): A high resolution XPS study

Weststrate, Cornelis LU ; Ludwig, Wiebke ; Bakker, Johan W ; Gluhoi, Andreea C and Nieuwenhuys, Bernard E (2007) In ChemPhysChem 8(6). p.932-937
Abstract
Ethanol (C2H5OH) adsorption, decomposition and oxidation is studied on Ir(111) using high-energy resolution, fast XPS and temperature-programmed desorption. During heating of an adsorbed ethanol layer a part of the C2H5OHad desorbs molecularly, and another part remains on the surface and decomposes around 200 K; these two decomposition pathways are identified, as via acetyl (H3C-,C=O) and via COad:+ CH3ad, respectively. Acetyl and CH3ad decomposed around 300 K into CHad (and COad). CHad decomposes forming C-x and H-2 around 520 K. In the presence of O-ad an acetate intermediate is formed around 180 K, as well as a small amount of CH3ad and COad. Acetate decomposes between 400-480 K into CO2, H-2(/H2O) and CHad.
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
iridium, ethanol, adsorption, chemisorption, surface chemistry
in
ChemPhysChem
volume
8
issue
6
pages
932 - 937
publisher
John Wiley & Sons Inc.
external identifiers
  • wos:000246190900019
  • scopus:34248182114
ISSN
1439-7641
DOI
10.1002/cphc.200700055
language
English
LU publication?
yes
id
8b09aacd-fabd-403e-8796-a031c585fae5 (old id 662750)
date added to LUP
2016-04-01 12:37:38
date last changed
2022-02-19 01:05:31
@article{8b09aacd-fabd-403e-8796-a031c585fae5,
  abstract     = {{Ethanol (C2H5OH) adsorption, decomposition and oxidation is studied on Ir(111) using high-energy resolution, fast XPS and temperature-programmed desorption. During heating of an adsorbed ethanol layer a part of the C2H5OHad desorbs molecularly, and another part remains on the surface and decomposes around 200 K; these two decomposition pathways are identified, as via acetyl (H3C-,C=O) and via COad:+ CH3ad, respectively. Acetyl and CH3ad decomposed around 300 K into CHad (and COad). CHad decomposes forming C-x and H-2 around 520 K. In the presence of O-ad an acetate intermediate is formed around 180 K, as well as a small amount of CH3ad and COad. Acetate decomposes between 400-480 K into CO2, H-2(/H2O) and CHad.}},
  author       = {{Weststrate, Cornelis and Ludwig, Wiebke and Bakker, Johan W and Gluhoi, Andreea C and Nieuwenhuys, Bernard E}},
  issn         = {{1439-7641}},
  keywords     = {{iridium; ethanol; adsorption; chemisorption; surface chemistry}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{932--937}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{ChemPhysChem}},
  title        = {{Ethanol adsorption, decomposition and oxidation on Ir(111): A high resolution XPS study}},
  url          = {{http://dx.doi.org/10.1002/cphc.200700055}},
  doi          = {{10.1002/cphc.200700055}},
  volume       = {{8}},
  year         = {{2007}},
}