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Journal ArticleDOI

Isothermal multiplicity on catalytic surfaces: Application to CO oxidation

01 Jan 1981-Chemical Engineering Science (Pergamon)-Vol. 36, Iss: 10, pp 1731-1734
About: This article is published in Chemical Engineering Science.The article was published on 1981-01-01. It has received 6 citations till now. The article focuses on the topics: Multiplicity (chemistry) & Isothermal process.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the authors present a theoretical explanation for carbon monoxide on platinum catalytic catalytic reactions, which poses difficulties and challenges to both the experimentalist and the theoretician, due to the frequent observations of hysteresis, associated with steady-state multiplicity, and self-sustained oscillations in the reaction.
Abstract: Although the oxidation of carbon monoxide on platinum is one of the oldest known catalytic reactions and one of the most thoroughly studied, it continues to pose difficulties and challenges to both the experimentalist and the theoretician. For the most part, these are due to the frequent observations of hysteresis, associated with steady-state multiplicity, and self-sustained oscillations in the reaction and to the fact that no generally accepted theoretical explanation for them is at hand. even though a large number of studies have addressed the subject.

202 citations

Journal ArticleDOI
TL;DR: In this paper, a review brings attention to much of the recent literature describing these developments and their applications, particularly regarding complex and chaotic oscillations, as well as reported experimental observations which, in many cases, have provided support for prior theory and in many others, have led to new theoretical developments.

172 citations

Journal ArticleDOI
TL;DR: In this article, the authors presented results in terms of effectiveness factors for bidispersed catalysts under conditions of diffusivity variation with distance in the micro-and macroparticles.

10 citations

Journal ArticleDOI
TL;DR: In this article, the surface electronic gas model was chosen for the description of surface inhomogeneity and isothermal multiplicity in catalytic surface reactions was considered for the case of polyatomic species on nonuniform surfaces.

9 citations

References
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Journal ArticleDOI
TL;DR: In this article, it is shown that a broad variety of slow chemisorption steps can serve as buffer with the restriction that the buffer step should not, or at least only slightly, contribute to the surface reaction.

89 citations

Journal ArticleDOI
TL;DR: In this article, surface heterogeneity can induce sustained kinetic oscillations, when a simple, isothermal reaction occurs on a catalytic surface, and the proposed model demonstrates that these oscillations may occur for realistic values of surface heterogeneity.

73 citations

Journal ArticleDOI
TL;DR: In this article, it was shown that rate multiplicity can be caused by competing chemisorption of A and B upon the same active sites of the catalyst, if at least one of the reaction steps is of second order.

60 citations

Journal ArticleDOI
TL;DR: In this paper, a study of CO oxidation on a Ptα-Al2O3 catalyst was carried out in the temperature range 370 to 420 °K, in oxygen, and the authors focused specifically on isothermal limit-cycle phenomena in this reaction.

49 citations

Journal ArticleDOI
TL;DR: In this article, the kinetics of ethylene and propylene oxidation over Rh and Ru supported on low area α-alumina were studied and found similar to those reported earlier for the same metals supported on high area silica.

32 citations