SITE BLOCKING EFFECT OF ZIRCONIUM-OXIDE DEPOSITED ON THE PT(001) SINGLE-CRYSTAL SURFACE - A STUDY BY LOW-ENERGY ELECTRON-DIFFRACTION, AUGER-ELECTRON SPECTROSCOPY, AND CARBON-MONOXIDE THERMAL-DESORPTION

被引：4

作者：

BARDI, U ^{[1
]}

ROSS, PN ^{[1
]}

机构：

[1] LAWRENCE BERKELEY LAB,ADV MAT LAB,BERKELEY,CA 94720

来源：

LANGMUIR | 1993年 / 9卷 / 01期

关键词：

D O I：

10.1021/la00025a030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Zirconium films of thickness of the order of a single atomic layer were deposited and subsequently oxidized on a single crystal Pt(001) surface. The plot of the Auger signal versus deposition time shows that zirconium oxide grows following the layer-by-layer mechanism. The adsorption of carbon monoxide on the surface was studied as a function of zirconium oxide coverage. Taking into account the variations in the oxide surface density detectable by low-energy electron diffraction, the main effect of the overlayer is of physically blocking CO chemisorption.

引用

页码：132 / 135

页数：4

共 28 条

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