Proposed cooperative model of dissociative chemisorption

I. Oppenheim; R. D. Levine

doi:10.1016/0009-2614(89)85343-6

Proposed cooperative model of dissociative chemisorption

I. Oppenheim^*, R. D. Levine

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

A model for the sharp temperature dependence of the dissociation probability of physisorbed diatomic molecules is proposed and discussed. The central feature of the model is the cooperative rearrangement of the substrate atoms upon dissociation of the adsorbates. This reconstruction of the surface and the low value of the probability of dissociation of a single molecule on an otherwise clean surface are both necessary to insure a sharp transition from physisorbed molecules to chemisorbed atoms.

Original language	English
Pages (from-to)	168-172
Number of pages	5
Journal	Chemical Physics Letters
Volume	155
Issue number	2
DOIs	https://doi.org/10.1016/0009-2614(89)85343-6
State	Published - 24 Feb 1989
Externally published	Yes

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title = "Proposed cooperative model of dissociative chemisorption",

abstract = "A model for the sharp temperature dependence of the dissociation probability of physisorbed diatomic molecules is proposed and discussed. The central feature of the model is the cooperative rearrangement of the substrate atoms upon dissociation of the adsorbates. This reconstruction of the surface and the low value of the probability of dissociation of a single molecule on an otherwise clean surface are both necessary to insure a sharp transition from physisorbed molecules to chemisorbed atoms.",

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year = "1989",

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AB - A model for the sharp temperature dependence of the dissociation probability of physisorbed diatomic molecules is proposed and discussed. The central feature of the model is the cooperative rearrangement of the substrate atoms upon dissociation of the adsorbates. This reconstruction of the surface and the low value of the probability of dissociation of a single molecule on an otherwise clean surface are both necessary to insure a sharp transition from physisorbed molecules to chemisorbed atoms.

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Proposed cooperative model of dissociative chemisorption

Abstract

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