Study of CO adsorption on Rh/alumina model catalysts in dependence on substrate orientation

被引：13

作者：

Nehasil, V

Hrncír, T

Zafeiratos, S

Ladas, S

Matolín, V

机构：

[1] Charles Univ, Fac Math & Phys, Prague 180000 8, Czech Republic

[2] Univ Patras, Dept Chem Engn, Patras, Greece

[3] FORTH, HT, ICE, Patras, Greece

来源：

SURFACE SCIENCE | 2000年 / 454卷

关键词：

adsorption kinetics; aluminum oxide; carbon monoxide; chemisorption; clusters; rhodium;

D O I：

10.1016/S0039-6028(00)00089-3

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：

The interaction of a CO molecular beam with rhodium vapour-deposited onto (0001), (1-102) and (11-20) alpha-alumina was investigated. The dependence of the CO sticking coefficient on the sample temperature and the relative CO coverage for different Rh deposits were calculated from the intensity of the reflected CO molecular beam. The diffusion of CO over the uncovered substrate to the metal is discussed in relation to the Rh particle size and density. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：289 / 294

页数：6

共 12 条

[1] CO AND O2 ADSORPTION ON RH(110) [J].