NO and CO Adsorption on Nonhomogeneous Pt(100) Surfaces Научная публикация
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Langmuir
ISSN: 0743-7463 , E-ISSN: 1520-5827 |
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| Вых. Данные | Год: 1999, Том: 15, Номер: 1, Страницы: 135-140 Страниц : 6 DOI: 10.1021/LA980793R | ||
| Ключевые слова | ADSORBATE-INDUCED REMOVAL' HYDROGEN ADSORPTION; PHASE-TRANSITION; RECONSTRUCTION; DESORPTION; HREELS; TRANSFORMATION; MECHANISM; SPECTRA; TDS | ||
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Реферат:
The adsorption of NO and CO on a nonhomogeneous Pt(100) surface made up of both the (hex) and (1 × 1) structural phases was studied at 300 K by means of high-resolution electron energy-loss spectroscopy (HREELS). The nonhomogeneous surface was prepared by titrating NOads/(1 × 1) islands formed on the original (hex) surface with deuterium and subsequent heating to desorb residual Dads. The as-prepared surface was assumed to consist of patches of the (1 × 1) structure surrounded by the (hex) surface. The ratio between the (1 × 1) patches and the (hex) area was controlled by the initial coverage of NOads before titration. The exposure of the nonhomogeneous surface to NO or CO at 300 K led to saturation of the (1 × 1) patches first. It was supposed that the NO and CO molecules adsorbing on the (hex) areas quickly diffuse along the surface, meet the (1 × 1) patches, and are “trapped” by them. NOads (COads) spreads on the surface of the (1 × 1) patches. As soon as the (1 × 1) patches are saturated, the adsorption-induced (hex) → (1 × 1) back-reconstruction takes place. The details of the NO and CO adsorption on the nonhomogeneous surface were compared with the process on the reconstructed and unreconstructed Pt(100) surfaces.
Библиографическая ссылка:
Zemlyanov D.Y.
, Smirnov M.Y.
, Vovk E.I.
NO and CO Adsorption on Nonhomogeneous Pt(100) Surfaces
Langmuir. 1999. V.15. N1. P.135-140. DOI: 10.1021/LA980793R WOS Scopus РИНЦ CAPlusCA OpenAlex
NO and CO Adsorption on Nonhomogeneous Pt(100) Surfaces
Langmuir. 1999. V.15. N1. P.135-140. DOI: 10.1021/LA980793R WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 1 июл. 1998 г. |
| Принята к публикации: | 1 окт. 1998 г. |
| Опубликована в печати: | 1 янв. 1999 г. |
| Опубликована online: | 5 янв. 1999 г. |
Идентификаторы БД:
| Web of science: | WOS:000077982800022 |
| Scopus: | 2-s2.0-0033524286 |
| РИНЦ: | 13329726 |
| Chemical Abstracts: | 1999:8518 |
| Chemical Abstracts (print): | 130:115455 |
| OpenAlex: | W2022149373 |