X-RAY PHOTOELECTRON SPECTROSCOPIC STUDY OF WATER-ADSORPTION ON BAF2(111) AND CAF2(111) SURFACES

Authors
WU YT MAYER JT GARFUNKEL E MADEY TE
Citation
Yt. Wu et al., X-RAY PHOTOELECTRON SPECTROSCOPIC STUDY OF WATER-ADSORPTION ON BAF2(111) AND CAF2(111) SURFACES, Langmuir, 10(5), 1994, pp. 1482-1487
Citations number
24
Categorie Soggetti
Chemistry Physical
Journal title
Langmuir → ACNP
ISSN journal
07437463
Volume
10
Issue
5
Year of publication
1994
Pages
1482 - 1487
Database
ISI
SICI code
0743-7463(1994)10:5<1482:XPSSOW>2.0.ZU;2-J
Abstract
The adsorption of water on BaF2(111) and CaF2(111) surfaces has been s tudied by X-ray photoelectron spectroscopy (XPS). Oxide and hydroxyl s pecies are observed to form reactively on both surfaces with low stick ing probability. XPS results imply an exchange of oxygen for fluorine at the surface. There is no evidence for molecularly adsorbed H2O spec ies at 300 K with exposures up to 107 langmuirs in vacuum on either su rface.