THE PREPARATION AND REACTIVITY OF THIN, ORDERED FILMS OF VANADIUM-OXIDE ON AU(111)

被引：52

作者：

LEWIS, KB

OYAMA, ST

SOMORJAI, GA

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,CTR ADV MAT,BERKELEY,CA 94720

来源：

SURFACE SCIENCE | 1990年 / 233卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(90)90177-A

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：

Ordered vanadium oxide films can be grown on an Au(111) substrate. These films are formed when an evaporated layer of metallic vanadium is oxidized and annealed in UHV. A √3 × √R30° LEED pattern is observed for submonolayer to multilayer coverages of vanadium oxide on Au(111), and AES shows that the vanadium in the film is in the +3 oxidation state. Hydrogen, ethanol, and ethylene adsorption on the oxide films was studied with temperature-programmed desorption. Oxidized molecules (H2O, CO, and CO2) were the primary desorption products. Oxygen became more difficult to extract as the vanadium oxide film was reduced during successive TPD experiments. © 1990.

引用

页码：75 / 83

页数：9

共 18 条

[1] THE PREPARATION AND SURFACE-STRUCTURE OF CLEAN V(110) [J].