Effect of adsorbed impurities on catalytic CO oxidation
The effect of inactive adsorbed impurities on kinetics of catalytic synthesis of carbon dioxide is investigated in the framework of the lattice-gas model. Namely, two cases of equilibrium impurities with fast, compared with the reaction's rate, and slow self dynamics are analyzed. It is revea...
Збережено в:
| Дата: | 2009 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2009
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119968 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Effect of adsorbed impurities on catalytic CO oxidation / I.S. Bzovska, I.M. Mryglod // Condensed Matter Physics. — 2009. — Т. 12, № 2. — С. 183-191. — Бібліогр.: 15 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The effect of inactive adsorbed impurities on kinetics of catalytic synthesis of carbon dioxide is investigated
in the framework of the lattice-gas model. Namely, two cases of equilibrium impurities with fast, compared
with the reaction's rate, and slow self dynamics are analyzed. It is revealed that the adsorbed impurities
shift the phase diagram to the region of lower temperatures and higher pressures pCO. In the case of slow
impurities the bistable region is narrowed far more than in the case when their dynamics is fast and their
distribution on the surface can be assumed to be equilibrium. The critical concentration of impurities at which
the bistable region disappears, is found. From analysis of the kinetic equations the condition of the existence
of the bifurcation region is analytically obtained. |
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