ON STATE OF OXYGEN ADSORBED ON SURFACE OF TUNGSTEN AND MOLYBDENUM SINGLE CRYSTALS

被引：45

作者：

VASKO, NP

PTUSHINS.YG

CHUIKOV, BA

机构：

[1] Institute of Physics, Academy of Sciences of the Ukrainian S.S.R., Kiev

来源：

SURFACE SCIENCE | 1969年 / 14卷 / 02期

关键词：

D O I：

10.1016/0039-6028(69)90092-2

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 desorption kinetics of the atomic and oxide phases1,2) have been studied to determine the composition of the surface film formed upon interaction of oxygen at low pressure with the surface of W and Mo single crystals. The results support the following ideas on the composition of an adsorbed film. Oxygen in the atomic state is present on the surface of all the substrates investigated irrespectively of their temperature during adsorption. Oxides are formed on the (100) planes of W and Mo during adsorption if the substrate temperature is high enough (~ 1000°K). If adsorption proceeds with the substrate at room temperature, the oxides in the desorption products are most likely due to the temperature rise during flashing, and the state on the substrate surface of the oxygen desorbed as oxides is unknown. On the (110) plane of W oxides are formed also at room temperature. © 1969.

引用

页码：448 / &

共 19 条

[1]

AGEEV VN, 1964, ZH TEKH FIZ, V34, P546

[2]

AGEIKIN VS, 1968, UKR FIZ ZH, V13, P779

[3] LOW ENERGY ELECTRON DIFFRACTION STUDY OF ADSORPTION OF OXYGEN ON A (100) TUNGSTEN SURFACE [J].