| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | Physical Review B | ||
| Dergi ISSN | 0163-1829 | ||
| Makale Dili | – | Basım Tarihi | 04-1988 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 15-04-1988 |
| Cilt / Sayı / Sayfa | 37 / 11 / 6164–0 | DOI | 10.1103/PhysRevB.37.6164 |
| Makale Linki | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.37.6164 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
|
||
| Özet |
| Adsorption studies of hydrogen and deuterium on the clean (100) surface of aluminum are reported. The probability for H 2 (D 2) dissociation and subsequent metal-hydrogen bond formation is less than 1: 10 4. This prompted the use of a beam of atomic hydrogen (deuterium). We have adsorbed between 0.01 and 1.0 monolayer and studied annealing sequences between 80 and 750 K with electron-energy-loss spectroscopy (EELS) and thermal-desorption spectroscopy (TDS). At< 90 K we observe surface hydrogen coordinated in bridge positions, characterized by an Al-H (-D) vibrational band at 1125 (800) cm− 1. Annealing to 150 K causes dominant features to appear at 1750 (1250) and 750 (550) cm− 1. These losses are interpreted as the stretching and bending and/or scissoring modes of a terminally coordinated species. Further annealing to 280 K sees the growth of an intense band at 1825 (1325) cm− 1 … |
| Anahtar Kelimeler |