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Adsorbed CO chain condensation and evaporation on Pt{110}-(1 x 2) at 30-70 K studied by RAIRS
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posted on 2023-06-08, 17:19 authored by R K Sharma, Wendy BrownWendy Brown, D A KingAt very low CO coverages on Pt(110)-(1 x 2) at 30 K, two C-O stretch infrared bands are observed. Warming to > 40 K results in the loss of the high-frequency band and growth of the low-frequency band. Further warming to greater than or equal to 60 K reverses this process. This reversal is attributed to a thermodynamic transition between 1D islands, or chains, of CO molecules and a 1D gas. The process at greater than or equal to 40 K is attributed to the onset of surface diffusion, when chain condensation occurs from the adsorbate randomly formed at 30 K. (C) 1998 Elsevier Science B.V. All rights reserved.
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Publication status
- Published
Journal
Chemical Physics LettersISSN
0009-2614Publisher
ElsevierExternal DOI
Issue
1-2Volume
291Page range
1 - 6Department affiliated with
- Chemistry Publications
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- No
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- Yes
Legacy Posted Date
2014-07-21Usage metrics
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