ATOM-RESOLVED STUDIES OF THE REACTION BETWEEN H2S AND O ON NI(110)

被引：56

作者：

RUAN, L

BESENBACHER, F

STENSGAARD, I

LAEGSGAARD, E

机构：

[1] Institute of Physics and Astronomy, Aarhus University

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.69.3523

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The reaction between H2S and preabsorbed O on Ni(110) has been studied at the atomic level by means of scanning tunneling microscopy (STM). During the reaction, the initially flat (2 x 1)O structure is replaced by an intermediate rough surface with many small islands and troughs, all covered with a c(2 x 2)S overlayer. Most surprisingly, this metastable phase converts into the thermodynamically stable (4 x 1)S reconstructed phase. A new mechanism to activate a surface at the atomic level is suggested.

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页码：3523 / 3526

页数：4

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