HREELS studies of hydrogen adsorption on Pd(311)

被引：8

作者：

Schilbe, P ^{[1
]}

Farias, D ^{[1
]}

Rieder, KH ^{[1
]}

机构：

[1] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

来源：

SURFACE REVIEW AND LETTERS | 1998年 / 5卷 / 02期

关键词：

D O I：

10.1142/S0218625X98000840

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 adsorption of hydrogen on Pd(311) at 100 K has, been investigated by high resolution electron energy loss spectroscopy (HREELS). The observed vibration energies are similar to former values reported on low index Pd surfaces: which allowed relating the vibration modes with the different adsorption sites on the (311) surface. In contrast to Ni(311) and Rh(311), hydrogen adsorption is found to begin at the fourfold-coordinated instead of the threefold-coordinated sites. The latter sites are occupied only at coverages greater than 0.5 ML. The hydrogen adsorption behavior on Pd(311) seems to be ruled by the possibility of occupying threefold and fourfold sites and by the H-H repulsion.

引用

页码：473 / 478

页数：6

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