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Determination of the Rh-C bond energy for C2H2 and C2H4 reactive adsorption on Rh{100}

journal contribution
posted on 2023-06-08, 17:19 authored by Rickmer Kose, Wendy BrownWendy Brown, David A King
Coverage dependent heats of adsorption and sticking probabilities for ethylene and acetylene on Rh{100} have been measured. For C2H2 and C2H4, the initial heats of adsorption are 210 +/- 10 and 175 +/- 10 kJ mol(-1), and the initial sticking probabilities are 0.86 +/- 0.01 and 0.88 +/- 0.01, respectively. No literature is available on the adsorption of acetylene on Rh{100}. However, it is known that ethylene adsorption on Rh{100} at 300 K produces sigma-bonded C=CH, and the corresponding Rh-C bond energy is therefore estimated as similar to 268 kJ mol(-1). This is used to determine the species most likely to be formed upon acetylene adsorption. (C) 1999 Elsevier Science B.V. ALI rights reserved.

History

Publication status

  • Published

Journal

Chemical Physics Letters

ISSN

0009-2614

Publisher

Elsevier

Issue

3-4

Volume

311

Page range

109 - 116

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2014-07-22

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