Research of the behaviour of O chemisorption on the (110) surface of Rhx-Pt1-x alloy

被引：2

作者：

College of Physical Science and Technology, Shenyang Normal University, Shenyang 110034, China ^{[1
]}

机构：

[1] College of Physical Science and Technology, Shenyang Normal University

来源：

Chin. Phys. | 2006年 / 3卷 / 641-644期

关键词：

Chemisorption; Density of states; Recursion method; Surface segregation;

D O I：

10.1088/1009-1963/15/3/033

中图分类号：

学科分类号：

摘要：

An atomic group model of the disordered binary alloy Rhx-Pt 1-x has been constructed to investigate surface segregation. According to the model, we have calculated the electronic structure of the Rhx-Pt1-xalloy surface by using the recursion method when O atoms are adsorbed on the Rhx-Pt1-x(110) surface under the condition of coverage 0.5. The calculation results indicate that the chemical adsorption of O changes greatly the density of states near the Fermi level and the surface segregation exhibits a reversal behaviour. In addition, when x<0.3, the surface on which O is adsorbed displays the property of Pt; whereas when x>0.3 it displays the property of Rh. © 2006 Chin. Phys. Soc. and IOP Publishing Ltd.

引用

页码：641 / 644

页数：3

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