Abstractive chemisorption of O2 on Al(111)

被引：47

作者：

Binetti, M ^{[1
]}

Weisse, O

Hasselbrink, E

Komrowski, AJ

Kummel, AC

机构：

[1] Univ Essen Gesamthsch, Fachbereich Chem, Essen, Germany

[2] Univ Calif San Diego, Dept Chem & Biochem, San Diego, CA 92103 USA

来源：

FARADAY DISCUSSIONS | 2000年 / 117卷

关键词：

D O I：

10.1039/b004006l

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 present experimental evidence that abstraction is a common mechanism (similar to 50%) in the dissociative chemisorption of oxygen on Al(111) at a translational energy of 0.5 eV. As a result of this mechanism, individual isolated O-atoms are observed in scanning tunneling microscopy (STM). At this translational energy ordinary dissociative chemisorption processes also occur, resulting in pairs of adatoms. The ejected O-atoms originating from the abstraction reaction are detected in the gas phase using laser spectrometry. Together, these observations provide compelling evidence for the abstraction mechanism.

引用

页码：313 / 320

页数：8

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