Adsorbed CO chain condensation and evaporation on Pt{110}-(1 x 2) at 30-70 K studied by RAIRS

Sharma, R K, Brown, W A and King, D A (1998) Adsorbed CO chain condensation and evaporation on Pt{110}-(1 x 2) at 30-70 K studied by RAIRS. Chemical Physics Letters, 291 (1-2). 1 - 6. ISSN 0009-2614

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Abstract

At 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.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science
Depositing User: Deeptima Massey
Date Deposited: 21 Jul 2014 13:12
Last Modified: 22 Jul 2014 12:28
URI: http://sro.sussex.ac.uk/id/eprint/48693
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