Determination of NO adsorption sites on Pd(100) using core level photoemission and low energy electron diffraction
(2002) In Surface Science 501(1-2). p.74-82- Abstract
- The adsorption of NO on Pd(1 0 0) is investigated with high resolution core level spectroscopy and low energy electron diffraction (LEED). Several ordered NO overlayers were observed, in agreement with earlier Studies. Our data clearly show that NO adsorbs in fourfold hollow sites at coverages tip to 0.25 -0.30 monolayer (ML) whereas at 0.5 ML only bridge sites are occupied. By a reinterpretation of previous electron energy loss spectroscopy (EELS) investigations we show that the new site assignments are in agreement the EELS data, Based on the photoemission results for the N 1s and the Pd 3d core levels we propose new structure models for the (2root2 x 2root2)R45degrees and the p(4 x 2) LEED patterns found at coverages of 0.5 and 0.25 ML,... (More)
- The adsorption of NO on Pd(1 0 0) is investigated with high resolution core level spectroscopy and low energy electron diffraction (LEED). Several ordered NO overlayers were observed, in agreement with earlier Studies. Our data clearly show that NO adsorbs in fourfold hollow sites at coverages tip to 0.25 -0.30 monolayer (ML) whereas at 0.5 ML only bridge sites are occupied. By a reinterpretation of previous electron energy loss spectroscopy (EELS) investigations we show that the new site assignments are in agreement the EELS data, Based on the photoemission results for the N 1s and the Pd 3d core levels we propose new structure models for the (2root2 x 2root2)R45degrees and the p(4 x 2) LEED patterns found at coverages of 0.5 and 0.25 ML, respectively. In the latter case, it is suggested that the p(4 x 2) LEED pattern is formed from domains having p(2 x 2)-NO and c(4 x 2)-2NO unit cells. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/338495
- author
- Jaworowski, A J ; Asmundsson, R ; Uvdal, Per LU and Sandell, A
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- energy electron diffraction (LEED), low, single crystal surfaces, palladium, nitrogen oxides, chemisorption, spectroscopy, synchrotron radiation photoelectron
- in
- Surface Science
- volume
- 501
- issue
- 1-2
- pages
- 74 - 82
- publisher
- Elsevier
- external identifiers
-
- wos:000175383400009
- scopus:0037139328
- ISSN
- 0039-6028
- DOI
- 10.1016/S0039-6028(01)01642-9
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Department of Chemistry (011001220), Synchrotron Radiation Research (011013009), Chemical Physics (S) (011001060)
- id
- 4cf79858-e966-441a-a7b9-97cd160456e8 (old id 338495)
- date added to LUP
- 2016-04-01 16:53:28
- date last changed
- 2022-02-13 01:16:37
@article{4cf79858-e966-441a-a7b9-97cd160456e8,
abstract = {{The adsorption of NO on Pd(1 0 0) is investigated with high resolution core level spectroscopy and low energy electron diffraction (LEED). Several ordered NO overlayers were observed, in agreement with earlier Studies. Our data clearly show that NO adsorbs in fourfold hollow sites at coverages tip to 0.25 -0.30 monolayer (ML) whereas at 0.5 ML only bridge sites are occupied. By a reinterpretation of previous electron energy loss spectroscopy (EELS) investigations we show that the new site assignments are in agreement the EELS data, Based on the photoemission results for the N 1s and the Pd 3d core levels we propose new structure models for the (2root2 x 2root2)R45degrees and the p(4 x 2) LEED patterns found at coverages of 0.5 and 0.25 ML, respectively. In the latter case, it is suggested that the p(4 x 2) LEED pattern is formed from domains having p(2 x 2)-NO and c(4 x 2)-2NO unit cells.}},
author = {{Jaworowski, A J and Asmundsson, R and Uvdal, Per and Sandell, A}},
issn = {{0039-6028}},
keywords = {{energy electron diffraction (LEED); low; single crystal surfaces; palladium; nitrogen oxides; chemisorption; spectroscopy; synchrotron radiation photoelectron}},
language = {{eng}},
number = {{1-2}},
pages = {{74--82}},
publisher = {{Elsevier}},
series = {{Surface Science}},
title = {{Determination of NO adsorption sites on Pd(100) using core level photoemission and low energy electron diffraction}},
url = {{http://dx.doi.org/10.1016/S0039-6028(01)01642-9}},
doi = {{10.1016/S0039-6028(01)01642-9}},
volume = {{501}},
year = {{2002}},
}