Non-random distribution of adsorbates on catalytic surfaces: The role of interactions between adsorbates

Kesava Rao Kaza; Sankaran Sundaresan

doi:10.1080/00986448508911655

Non-random distribution of adsorbates on catalytic surfaces: The role of interactions between adsorbates

Kesava Rao Kaza, Sankaran Sundaresan

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

15 Scopus citations

Abstract

It has been repeatedly stressed in the literature that the commonly invoked assumption of a random distribution of adsorbates on the catalyst surface is suspect under certain operating conditions. Nonrandom distribution of the adsorbates can occur as a result of interaction between adsorbates and/or their inadequate mobility. We have studied the effect of adsorbate interactions on the rates and stability of catalytic reactions, and the salient features are outlined with several examples. An analysis of the thermodynamic data concerning the oxidation of SO₂on platinum is presented within the framework of the proposed model.

Original language	English (US)
Pages (from-to)	333-355
Number of pages	23
Journal	Chemical Engineering Communications
Volume	32
Issue number	6
DOIs	https://doi.org/10.1080/00986448508911655
State	Published - Jan 1985

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

Keywords

Adsorbate interactions
Phase separation of adsorbates
Sulfur dioxide oxidation on noble metals

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10.1080/00986448508911655

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AB - It has been repeatedly stressed in the literature that the commonly invoked assumption of a random distribution of adsorbates on the catalyst surface is suspect under certain operating conditions. Nonrandom distribution of the adsorbates can occur as a result of interaction between adsorbates and/or their inadequate mobility. We have studied the effect of adsorbate interactions on the rates and stability of catalytic reactions, and the salient features are outlined with several examples. An analysis of the thermodynamic data concerning the oxidation of SO2on platinum is presented within the framework of the proposed model.

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