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Calorimetric measurements of the adsorption heat for ethene on Pt{211} and Pt{311}

journal contribution
posted on 2023-06-08, 17:18 authored by Wendy BrownWendy Brown, R Kose, D A King
The sticking probability and heat of adsorption for C2H4 on the stepped Pt(211) and Pt(311)-(1 x 2) surfaces have been measured for the first time. Adsorption on Pt(211) leads to the formation of several different species as a function of coverage, whereas adsorption on Pt(311)-(1 x 2) leads to the formation of only one species on the surface over the whole coverage range. The initial heats of adsorption for C-2,H-4 on Pt(211) and Pt(311)-(1 x 2) have been measured as 180 and 220 kJ mol(-1), respectively. The initial sticking probabilities are 0.84 for both surfaces. The most likely species to be formed on Pt(211) as a function of coverage are quad-a acetylene followed by ethylidyne whereas on Pt(311)-(1 x 2) ethylylidyne forms at all coverages. (C) 1999 Elsevier Science B.V. All rights reserved.

History

Publication status

  • Published

Journal

Surface Science

ISSN

0039-6028

Publisher

Elsevier

Issue

1-2

Volume

440

Page range

271 - 278

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2014-07-22

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