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Title: Collision-induced desorption in 193-nm photoinduced reactions in (O{sub 2}+CO) adlayers on Pt(112)

Abstract

The spatial distribution of desorbing O{sub 2} and CO{sub 2} was examined in 193-nm photoinduced reactions in O{sub 2}+CO adlayers on stepped Pt (112)=[(s)3(111)x(001)]. The O{sub 2} desorption collimated in inclined ways in the plane along the surface trough, confirming the hot-atom collision mechanism. In the presence of CO(a), the product CO{sub 2} desorption also collimated in an inclined way, whereas the inclined O{sub 2} desorption was suppressed. The inclined O{sub 2} and CO{sub 2} desorption is explained by a common collision-induced desorption model. At high O{sub 2} coverage, the CO{sub 2} desorption collimated closely along the (111) terrace normal.

Authors:
; ;  [1];  [2]
  1. Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0811 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
20723042
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 9; Other Information: DOI: 10.1063/1.2006678; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 74 ATOMIC AND MOLECULAR PHYSICS; ATOM COLLISIONS; CARBON DIOXIDE; DESORPTION; OXYGEN; PHOTOCHEMISTRY; PLATINUM; SPATIAL DISTRIBUTION; SURFACES

Citation Formats

Han Song, Ma Yunsheng, Matsushima, Tatsuo, and Catalysis Research Center, Hokkaido University, Sapporo 001-0021. Collision-induced desorption in 193-nm photoinduced reactions in (O{sub 2}+CO) adlayers on Pt(112). United States: N. p., 2005. Web. doi:10.1063/1.2006678.
Han Song, Ma Yunsheng, Matsushima, Tatsuo, & Catalysis Research Center, Hokkaido University, Sapporo 001-0021. Collision-induced desorption in 193-nm photoinduced reactions in (O{sub 2}+CO) adlayers on Pt(112). United States. doi:10.1063/1.2006678.
Han Song, Ma Yunsheng, Matsushima, Tatsuo, and Catalysis Research Center, Hokkaido University, Sapporo 001-0021. Thu . "Collision-induced desorption in 193-nm photoinduced reactions in (O{sub 2}+CO) adlayers on Pt(112)". United States. doi:10.1063/1.2006678.
@article{osti_20723042,
title = {Collision-induced desorption in 193-nm photoinduced reactions in (O{sub 2}+CO) adlayers on Pt(112)},
author = {Han Song and Ma Yunsheng and Matsushima, Tatsuo and Catalysis Research Center, Hokkaido University, Sapporo 001-0021},
abstractNote = {The spatial distribution of desorbing O{sub 2} and CO{sub 2} was examined in 193-nm photoinduced reactions in O{sub 2}+CO adlayers on stepped Pt (112)=[(s)3(111)x(001)]. The O{sub 2} desorption collimated in inclined ways in the plane along the surface trough, confirming the hot-atom collision mechanism. In the presence of CO(a), the product CO{sub 2} desorption also collimated in an inclined way, whereas the inclined O{sub 2} desorption was suppressed. The inclined O{sub 2} and CO{sub 2} desorption is explained by a common collision-induced desorption model. At high O{sub 2} coverage, the CO{sub 2} desorption collimated closely along the (111) terrace normal.},
doi = {10.1063/1.2006678},
journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 9,
volume = 123,
place = {United States},
year = {2005},
month = {9}
}