TDS and EELS observations for CO, O2, and CH3OH bound to Ru (0001)/Cu
Yazarlar (2)
Jan Paul
| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | Surface science | ||
| Makale Dili | – | Basım Tarihi | 06-1986 |
| Cilt / Sayı / Sayfa | 172 / 1 / 151–173 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/0039602886905881 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| The electronic properties of monolayers of copper atoms adsorbed onto a Ru(0001) single crystal surface have been studied with thermal desorption spectroscopy (TDS) and high resolution electron energy loss spectroscopy (EELS) utilizing carbon monoxide (CO), dioxygen (O2), methanol (CH3OH), and to some extent water (H2O) as chemical probes. Whereas a three-monolayer-thick film exhibits most properties of a Cu(111) crystal distinct deviations are found at lower Cu coverages. TDS as well as EELS show a weakened RuCO bond and a strengthened CuCO bond as a result of metal-metal interaction. The stronger CuCO bond is accompanied by a higher probability for O2 dissociation. The mobilities of copper and oxygen atoms are such that annealing to 650 K produces an overlayer structure which is independent of adsorption sequence: Cu/O2 or O2/Cu, but where RuO as well as CuO vibrations … |
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