Sub-surface incorporation of oxygen on Ag(001) during molecular dissociation

被引：34

作者：

de Mongeot, FB

Cupolillo, A

Rocca, M

Valbusa, U

机构：

[1] Univ Genoa, Dipartimento Fis, INFM, I-16146 Genoa, Italy

[2] Univ Genoa, Dipartimento Fis, CNR, CFSBT, I-16146 Genoa, Italy

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 302卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(99)00125-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report evidence for the occurrence of sub-surface oxygen incorporation during the dissociation process of admolecules. The process is observed for O-2 chemisorbed on Ag(001) at a surface temperature of 100 K, where thermally activated sub-surface diffusion is inactive. The phenomenon occurs both when dissociation is induced thermally or by electron bombardment. EELS peaks corresponding to the vibration of adatoms and of sub-surface oxygen are observed. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：302 / 306

页数：5

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