The Structure of the Active Pd State during Catalytic Carbon Monoxide Oxidization
(2021) In Journal of Physical Chemistry Letters 12(18). p.4461-4465- Abstract
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited catalytic oxidation of CO, the long-range surface structure of Pd(100) was investigated. Under the reaction conditions of 50:4 O2 to CO, 300 mbar pressure, and temperatures between 200 and 450 °C, the surface structure resulting from oxidation and the subsequent oxide reduction was elucidated. The reduction cycle was halted, and while under reaction conditions, angle-dependent X-ray photoelectron spectroscopy close to the critical angle of Pd and modeling of the data was performed. Two proposed models for the system were compared. The suggestion with the metallic islands formed on top of the oxide island was shown to be consistent with... (More)
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited catalytic oxidation of CO, the long-range surface structure of Pd(100) was investigated. Under the reaction conditions of 50:4 O2 to CO, 300 mbar pressure, and temperatures between 200 and 450 °C, the surface structure resulting from oxidation and the subsequent oxide reduction was elucidated. The reduction cycle was halted, and while under reaction conditions, angle-dependent X-ray photoelectron spectroscopy close to the critical angle of Pd and modeling of the data was performed. Two proposed models for the system were compared. The suggestion with the metallic islands formed on top of the oxide island was shown to be consistent with the data.
(Less)
- author
- organization
- publishing date
- 2021-05-13
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry Letters
- volume
- 12
- issue
- 18
- pages
- 5 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:33955763
- scopus:85106365188
- ISSN
- 1948-7185
- DOI
- 10.1021/acs.jpclett.1c00620
- language
- English
- LU publication?
- yes
- id
- 0f7d7c4f-769e-434f-9ee0-f642c0de3562
- date added to LUP
- 2021-06-18 12:52:37
- date last changed
- 2024-06-15 12:43:03
@article{0f7d7c4f-769e-434f-9ee0-f642c0de3562,
abstract = {{<p>Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited catalytic oxidation of CO, the long-range surface structure of Pd(100) was investigated. Under the reaction conditions of 50:4 O2 to CO, 300 mbar pressure, and temperatures between 200 and 450 °C, the surface structure resulting from oxidation and the subsequent oxide reduction was elucidated. The reduction cycle was halted, and while under reaction conditions, angle-dependent X-ray photoelectron spectroscopy close to the critical angle of Pd and modeling of the data was performed. Two proposed models for the system were compared. The suggestion with the metallic islands formed on top of the oxide island was shown to be consistent with the data. </p>}},
author = {{Goodwin, Christopher M. and Shipilin, Mikhail and Albertin, Stefano and Hejral, Uta and Lömker, Patrick and Wang, Hsin Yi and Blomberg, Sara and Degerman, David and Schlueter, Christoph and Nilsson, Anders and Lundgren, Edvin and Amann, Peter}},
issn = {{1948-7185}},
language = {{eng}},
month = {{05}},
number = {{18}},
pages = {{4461--4465}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Journal of Physical Chemistry Letters}},
title = {{The Structure of the Active Pd State during Catalytic Carbon Monoxide Oxidization}},
url = {{http://dx.doi.org/10.1021/acs.jpclett.1c00620}},
doi = {{10.1021/acs.jpclett.1c00620}},
volume = {{12}},
year = {{2021}},
}