REACTION DIAGRAM OF CARBON-MONOXIDE AND OXYGEN ON PALLADIUM(100) AND ANGULAR-DISTRIBUTION OF REACTIVE CARBON-DIOXIDE DESORPTION

被引：29

作者：

OHNO, Y ^{[1
]}

MATSUSHIMA, T ^{[1
]}

SHOBATAKE, K ^{[1
]}

NOZOYE, H ^{[1
]}

机构：

[1] NATL CHEM LAB IND,TSUKUBA,IBARAKI 305,JAPAN

来源：

SURFACE SCIENCE | 1992年 / 273卷 / 03期

关键词：

D O I：

10.1016/0039-6028(92)90067-G

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 co-adsorption structures of CO and oxygen on Pd(100) and the angular distribution of reactive CO2 desorption were studied with angle-resolved thermal desorption and low-energy electron diffraction. The CO2 formation induced by heating the co-adlayer was extended to lower temperatures with an increase in the coverages, yielding five peaks; P1-CO2 (approximately 400 K), P2-CO2 (approximately 350 K), P3-CO2 (approximately 290 K), P4-CO2 (approximately 240 K) and P5-CO2 (approximately 150 K). A reaction diagram was constructed from threshold coverages determined by the appearance of each CO2 peak and the variation of LEED spot intensity. Each zone in the diagram is characteristic of separate domains of CO and oxygen, and different angular distribution of reactive CO2 desorption.

引用

页码：291 / 300

页数：10

共 20 条

[1] ADSORPTION OF CO ON PD(100) [J].