HYDROGEN VIBRATIONS ON THE RU(001) SURFACE REVISITED

被引：44

作者：

SHI, H ^{[1
]}

JACOBI, K ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,FARADAYWEG 4-6,D-14195 BERLIN,GERMANY

来源：

SURFACE SCIENCE | 1994年 / 313卷 / 03期

关键词：

D O I：

10.1016/0039-6028(94)90049-3

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 vibrations of H chemisorbed on the Ru(001) surface at 90 K were studied using high-resolution electron energy loss spectroscopy (HREELS) and thermal desorption spectroscopy (TDS). Several different sets of vibrational losses were observed as a function of H coverage theta(H). For theta(H) < 0.3 a single loss was observed at 85 meV assigned to the Ru-H stretching mode and compatible with a threefold hollow site. At saturation coverage (theta(H) almost-equal-to 1) three modes were found at 90, 102 and 141 meV, indicating a reduced symmetry of the adsorption site.

引用

页码：289 / 294

页数：6

共 16 条

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