LEED, AES AND THERMAL-DESORPTION STUDIES OF THE OXIDATION OF THE RHODIUM(111) SURFACE

被引：92

作者：

CASTNER, DG ^{[1
]}

SOMORJAI, GA ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DEPT CHEM,DIV MAT & MOLEC RES,BERKELEY,CA 94720

来源：

APPLIED SURFACE SCIENCE | 1980年 / 6卷 / 01期

关键词：

D O I：

10.1016/0378-5963(80)90052-5

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 oxidation of the Rh(111) surface was studied by low-energy electron diffraction (LEED), Auger electron spectroscopy (AES), and thermal desorption mass spectroscopy (TDS). The chemisorbed oxygen overlayer formed an ordered (2 multiplied by 1) structure. Heating the Rh(111) crystal in the presence of oxygen resulted in oxygen diffusing into the near surface region. Extended high-temperature annealing produced an unreactive surface oxide. The epitaxial growth of Rh//2O//3(0001) on Rh(111) occurred during high-temperature annealing in 1 torr of O//2. This epitaxial oxide did not adsorb detectable amounts of either hydrogen or CO at 300 K and could be decomposed by heating the crystal to 800 K in vacuum.

引用

页码：29 / 38

页数：10

共 33 条

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