Nucleation and Growth of p(2 × 2) and c(2 × 2) Adsorption Structures During Oxygen Adsorption on the (100) Surface of Metals at Low Temperatures Научная публикация
Журнал |
Surface Science
ISSN: 0039-6028 |
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Вых. Данные | Год: 1999, Том: 441, Номер: 2-3, Страницы: 399-409 Страниц : 11 DOI: 10.1016/S0039-6028(99)00860-2 | ||
Ключевые слова | Chemisorption; Computer simulations; Islands; Lateral interactions; Nucleation; Oxygen; Single crystal surfaces; Surface structures | ||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Российский фонд фундаментальных исследований | 96-03-32961 |
2 | Российский фонд фундаментальных исследований | 99-03-32429 |
Реферат:
The nucleation and growth of p(2×2) and c(2×2) adsorption structures during dissociative chemisorption of oxygen on a metal surface with a square lattice of adsorption sites has been studied by Monte Carlo simulation at low temperature (300 K) when the surface diffusion of chemisorbed atoms is slow (i.e., under non-equilibrium conditions). An adsorption model taking into account both direct and indirect adsorption pathways, lateral interactions between chemisorbed particles and their immobility, was used. The p(2×2) islands nucleate due to direct dissociative chemisorption of O2 molecules on 3NN (third-nearest neighbor) adsorption sites occurring via occupation of nearest neighbor (NN) sites by the oxygen atoms followed by hopping of one of the atoms to a 3NN site. The p(2×2) islands grow as a consequence of indirect adsorption occurring via trapping of O2 molecules into precursor states followed by migration above the adsorption island and chemisorption on similar sites at the edges of the adsorption islands. The c(2×2) islands are mostly formed by the merger of antiphase p(2×2) islands that are spatially not coherent with respect to each other in both directions, and grow also as a result of indirect adsorption. Antiphase boundaries are formed by the merger of antiphase p(2×2) islands that are spatially not coherent with respect to each other in one direction.
Библиографическая ссылка:
Salanov A.N.
, Bibin V.N.
Nucleation and Growth of p(2 × 2) and c(2 × 2) Adsorption Structures During Oxygen Adsorption on the (100) Surface of Metals at Low Temperatures
Surface Science. 1999. V.441. N2-3. P.399-409. DOI: 10.1016/S0039-6028(99)00860-2 WOS Scopus РИНЦ
Nucleation and Growth of p(2 × 2) and c(2 × 2) Adsorption Structures During Oxygen Adsorption on the (100) Surface of Metals at Low Temperatures
Surface Science. 1999. V.441. N2-3. P.399-409. DOI: 10.1016/S0039-6028(99)00860-2 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 29 янв. 1999 г. |
Принята к публикации: | 22 июл. 1999 г. |
Опубликована в печати: | 1 нояб. 1999 г. |
Опубликована online: | 25 янв. 2000 г. |
Идентификаторы БД:
Web of science | WOS:000083570400022 |
Scopus | 2-s2.0-0033225279 |
РИНЦ | 13315518 |
Chemical Abstracts | 1999:707793 |
Chemical Abstracts (print) | 132:84125 |
OpenAlex | W2084464985 |