The adsorption of hydrogen on Ru(11(2)over-bar1)

被引：14

作者：

Fan, CY ^{[1
]}

Jacobi, K ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

SURFACE SCIENCE | 2001年 / 482卷

关键词：

chemisorption; electron energy loss spectroscopy (EELS); hydrogen atom; ruthenium; thermal desorption spectroscopy; vibrations of adsorbed molecules;

D O I：

10.1016/S0039-6028(00)01009-8

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：

HREELS and TDS results are presented for hydrogen adsorption on Ru(11 (2) over bar1) at 90 K. Three distinct adsorption states were separated both from TDS and HREELS. These alpha, beta and gamma states are characterized by desorption temperatures of 115, 175-280, 345 K. The according vibrational energies are (42, 95 meV), (64, 115, 160 meV) and (62, 92, 145 meV). By comparison with literature data and taking into account the site symmetries, these states are assigned to fourfold and threefold symmetric sites, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：21 / 25

页数：5

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