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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.
Please use this url to cite or link to this publication:
author
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
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
2007-12-19 08:27:58
date last changed
2017-10-22 03:57:39
@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},
  keyword      = {iridium,ethanol,adsorption,chemisorption,surface chemistry},
  language     = {eng},
  number       = {6},
  pages        = {932--937},
  publisher    = {John Wiley & Sons},
  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},
  volume       = {8},
  year         = {2007},
}