SURFACE SEGREGATION IN SMALL BIMETALLIC PARTICLES

被引：9

作者：

MODAK, S

KHANRA, BC

机构：

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 84卷 / 06期

关键词：

D O I：

10.1016/0038-1098(92)90211-Q

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A tight-binding electronic theory has been used to study the surface segregation behavior of small bimetallic particles having the shape of a cubooctahedron. For Pt-Ib (Ib = Cu, Ag, Au) systems it is found that Ib atoms segregate to the surface of the cluster. The extent of segregation is found to be less for smaller particles. The results of our model agree very well with the Monte Carlo (MC) simulation results of Strohl and King.

引用

页码：663 / 667

页数：5

共 19 条

[1]

BURTON JJ, 1975, J CATAL, V37, P106, DOI 10.1016/0021-9517(75)90138-4

[2] THE INFLUENCE OF PARTICLE-SIZE ON THE CATALYTIC PROPERTIES OF SUPPORTED METALS [J].