Hydrogenation of Pd capped Mg thin films at room temperature

被引：80

作者：

Yoshimura, K ^{[1
]}

Yamada, Y ^{[1
]}

Okada, M ^{[1
]}

机构：

[1] AIST, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

SURFACE SCIENCE | 2004年 / 566卷

关键词：

alkaline earth metals; palladium; hydrogen atom; sputter deposition; X-ray photoelectron spectroscopy;

D O I：

10.1016/j.susc.2004.06.115

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：

Pd capped pure Mg thin films were prepared by DC magnetron sputtering and their hydrogenation at room temperature has been investigated. After exposure to 4% hydrogen gas diluted by argon, the Pd/Mg thin films on Si substrates at 295 K show drastic optical changes in reflectance within 5 s. XPS analysis reveals that there exists an intermixing layer of Pd and Mg near the surface, and MgH2 is formed very quickly in this intermixing layer. It is very interesting that such a fast hydrogenation occurs at room temperature. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：751 / 754

页数：4

共 17 条

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[2]

FISCHER A, 1991, J LESS-COMMON MET, V172, P808, DOI 10.1016/0022-5088(91)90207-K

[3] Hydrogen sorption kinetics in partly oxidized Mg films [J].