TPD studies of the interaction of D2O and Na with clean and oxidized Al (100) surfaces
Yazarlar (2)
Jan Paul
| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | Applied surface science | ||
| Makale Dili | – | Basım Tarihi | 10-1993 |
| Cilt / Sayı / Sayfa | 72 / 2 / 113–124 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/016943329390001R | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| Temperature-programmed desorption spectra of D2O and Na adsorbed on aluminum and aluminum oxide are presented. D2O adsorbs associatively as well as dissociatively on the Al(100) surface, except at low exposures (<0.5 L) when no molecular species are observed. At these low exposures only dissociative adsorption is observed. High exposures of D2O result in ice formation on both Al and Al2O3. Molecular water desorbs at around 180 K for the metal surface. Ice sublimation takes place at 185 K. D2 has a broad desorption peak between 120 and 150 K, possibly from several overlapping peaks and a small peak at around 640 K.Sodium adsorbs on the clean Al(100) surface in two forms: a monolayer strongly interacting with the substrate and multilayers, characterized by Na-Na bonds. Na-Na interaction dominates desorption spectra on an Al(100)/Al2O3 surface, produced by dry oxidation and reminiscent … |
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