FORMATION AND DESORPTION OF ALUMINUM-HYDRIDE FROM HYDROGEN ADSORBED ALUMINUM SURFACES

被引:43
作者
HARA, M
DOMEN, K
ONISHI, T
NOZOYE, H
NISHIHARA, C
KAISE, Y
SHINDO, H
机构
[1] NATL CHEM LAB IND,1-1 HIGASHI,TSUKUBA,IBARAKI 305,JAPAN
[2] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
关键词
D O I
10.1016/0039-6028(91)90309-G
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
Hydrogen adsorbed Al single crystal surfaces have been investigated under ultra-high vacuum by thermal desorption (TD) and X-ray photoelectron spectroscopy (XPS). The desorption of an aluminum hydride at 340 K was observed to be zero-order by TD experiments of an Al(111) surface on which hydrogen adsorbed at 150 K. This is a first observation of the desorption of a metal from a hydrogen adsorbed metal surface. XP spectra of Al2p for hydrogen adsorbed Al film on Mo(111) indicated that the precursor of the desorbed aluminum hydride, which desorbed as zero-order, was formed with an increase of the temperature of the Al film up to 340 K.
引用
收藏
页码:459 / 463
页数:5
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