The Energy Dependence of the Ratio of Step and Terrace Reactivity for H(2) Dissociation on Stepped Platinum

Irene M.N. Groot, Aart W. Kleyn, Ludo B.F. Juurlink

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)

Abstract

The fraction of dissociation processes fD for H2 on platinum that take place on low-coordinate sites of nanoparticles is strongly dependent on the gas temperature of the incoming molecules and on the diameter d of the nanoparticles (see picture). For high gas temperatures and large nanoparticles, dissociation occurs mostly on terraces. Therefore, assumptions that steps always dominate reaction in heterogeneous catalysis cannot be justified
Original languageUndefined
Pages (from-to)5174-5177
JournalAngewandte Chemie (international edition)
Volume50
Issue number22
DOIs
Publication statusPublished - 2011

Keywords

  • METIS-304853
  • IR-104548

Cite this

Groot, Irene M.N. ; Kleyn, Aart W. ; Juurlink, Ludo B.F. / The Energy Dependence of the Ratio of Step and Terrace Reactivity for H(2) Dissociation on Stepped Platinum. In: Angewandte Chemie (international edition). 2011 ; Vol. 50, No. 22. pp. 5174-5177.
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The Energy Dependence of the Ratio of Step and Terrace Reactivity for H(2) Dissociation on Stepped Platinum. / Groot, Irene M.N.; Kleyn, Aart W.; Juurlink, Ludo B.F.

In: Angewandte Chemie (international edition), Vol. 50, No. 22, 2011, p. 5174-5177.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Groot, Irene M.N.

AU - Kleyn, Aart W.

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AB - The fraction of dissociation processes fD for H2 on platinum that take place on low-coordinate sites of nanoparticles is strongly dependent on the gas temperature of the incoming molecules and on the diameter d of the nanoparticles (see picture). For high gas temperatures and large nanoparticles, dissociation occurs mostly on terraces. Therefore, assumptions that steps always dominate reaction in heterogeneous catalysis cannot be justified

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KW - IR-104548

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DO - 10.1002/anie.201007093

M3 - Article

VL - 50

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JO - Angewandte Chemie (international edition)

JF - Angewandte Chemie (international edition)

SN - 1433-7851

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