SOFT-X-RAY APPEARANCE POTENTIAL SPECTROSCOPY OF C, N AND O ADSORBED ON CR, MO AND W

被引：15

作者：

NYBERG, C

机构：

[1] Department of Physics, Chalmers University of Technology

来源：

SURFACE SCIENCE | 1979年 / 82卷 / 01期

关键词：

D O I：

10.1016/0039-6028(79)90325-X

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 1s level soft x-ray appearance potential spectra of C, N and O chemisorbed on polycrystalline Cr, Mo and W surfaces have been observed. The adsorbate ls spectra show the following characteristic features in the chemisorption regime: (i) Cr: one single peak; (ii) Mo and W: a doublet structure. We tentatively assume that the doublet structure is due to a splitting in the antibonding levels of the surface complex. Oxidation of Mo and W at high temperature causes changes in the metal (Mo 2p 3 2 and W 3d 5 2) and in the oxygen 1s spectra as compared with the spectra obtained after room temperature adsorption of oxygen. © 1979.

引用

页码：165 / 176

页数：12

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