Издательство СО РАН

Издательство СО РАН

Адрес Издательства СО РАН: Россия, 630090, а/я 187
Новосибирск, Морской пр., 2

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Поиск по журналу

Химия в интересах устойчивого развития

2003 год, номер 1

Manifestation of the Adsorbed CO Diffusion Anisotropy Caused by the Structure Properties of the Pd(110) – (1´2) Surface on the Oscillatory Behaviour during CO Oxidation Reaction – Monte-Carlo Model

A. V. Matveev, E. I. Latkin, V. I. Elokhin and V. V. Gorodetskii
G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia), E-mail: elokhin@catalysis.nsk.su
Страницы: 173-180

Аннотация

The modelling of self-oscillations and surface autowaves in CO oxidation reaction over Pd(110) has been carried out by means of the Monte-Carlo technique. The synchronous oscillations of the reaction rate and surface coverages are exhibited within the range of the suggested model parameters (under the conditions very close to the experimental observations). The dependencies of the simulation results on the lattice size and on the diffusion intensity have been studied. It has been established that the adsorbed CO diffusion anisotropy does not influence the oscillation kinetics but leads to the appearance of the propagating reaction fronts on the palladium surface elliptically stretched along the [110] direction in close agreement with the known experimental data.