Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅)
Dirk Rosenthal
1
,
Roland Widmer
2
,
Ronald Wagner
1
,
P. Gille
3
,
Marc Armbrüster
4
,
Yuri Grin
4
,
Robert Schlögl
1
,
Oliver Gröning
2
Publication type: Journal Article
Publication date: 2012-04-20
scimago Q1
wos Q2
SJR: 0.763
CiteScore: 6.0
Impact factor: 3.9
ISSN: 07437463, 15205827
PubMed ID:
22519655
Spectroscopy
Electrochemistry
Condensed Matter Physics
General Materials Science
Surfaces and Interfaces
Abstract
The intermetallic PdGa is a highly selective and potent catalyst in the semihydrogenation of acetylene, which is attributed to the surface stability and isolated Pd atom ensembles. In this context PdGa single crystals of form B with (111) orientation were investigated by means of X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), scanning tunneling microscopy (STM), X-ray photoelectron diffraction (XPD), and low-energy electron diffraction (LEED) to study the electronic and geometric properties of this surface. UPS and thermal desorption spectroscopy (TDS) were used to probe the chemisorption behavior of CO. The PdGa(111) surface exhibits a (1 × 1) LEED and a pronounced XPD pattern indicating an unreconstructed bulk-truncated surface. Low-temperature STM reveals a smooth surface with a (1 × 1) unit cell. No segregation occurs, and no impurities are detected by XPS. The electronic structure and the CO adsorption properties reveal PdGa(111) to be a bulk-truncated intermetallic compound with Pd-Ga partial covalent bonding.
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Total citations:
50
Citations from 2024:
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(6%)
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GOST
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Rosenthal D. et al. Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅) // Langmuir. 2012. Vol. 28. No. 17. pp. 6848-6856.
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Rosenthal D., Widmer R., Wagner R., Gille P., Armbrüster M., Grin Y., Schlögl R., Gröning O. Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅) // Langmuir. 2012. Vol. 28. No. 17. pp. 6848-6856.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/la2050509
UR - https://doi.org/10.1021/la2050509
TI - Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅)
T2 - Langmuir
AU - Rosenthal, Dirk
AU - Widmer, Roland
AU - Wagner, Ronald
AU - Gille, P.
AU - Armbrüster, Marc
AU - Grin, Yuri
AU - Schlögl, Robert
AU - Gröning, Oliver
PY - 2012
DA - 2012/04/20
PB - American Chemical Society (ACS)
SP - 6848-6856
IS - 17
VL - 28
PMID - 22519655
SN - 0743-7463
SN - 1520-5827
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2012_Rosenthal,
author = {Dirk Rosenthal and Roland Widmer and Ronald Wagner and P. Gille and Marc Armbrüster and Yuri Grin and Robert Schlögl and Oliver Gröning},
title = {Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅)},
journal = {Langmuir},
year = {2012},
volume = {28},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021/la2050509},
number = {17},
pages = {6848--6856},
doi = {10.1021/la2050509}
}
Cite this
MLA
Copy
Rosenthal, Dirk, et al. “Surface Investigation of Intermetallic PdGa(1̅ 1̅ 1̅).” Langmuir, vol. 28, no. 17, Apr. 2012, pp. 6848-6856. https://doi.org/10.1021/la2050509.