Improvement of hydrogen absorption rate of Pd by ion irradiation

被引：20

作者：

Abe, H

Uchida, H

Azuma, Y

Uedono, A

Chen, ZQ

Itoh, H

机构：

[1] Japan Atom Energy Res Inst, Dept Mat Dev, Severe Environm Mat Lab, Takasaki, Gumma 3701292, Japan

[2] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[3] Tokai Univ, Grad Sch Engn Appl Sci, Hiratsuka, Kanagawa 2591292, Japan

[4] Tokai Univ, Dept Appl Phys, Grad Sch Engn, Hiratsuka, Kanagawa 2591292, Japan

[5] Tokai Univ, Undergrad Sch Engn, Hiratsuka, Kanagawa 2591292, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2003年 / 206卷

关键词：

palladium; hydrogen absorption rate; defects; ion irradiation; surface improvement;

D O I：

10.1016/S0168-583X(03)00734-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Palladium (Pd) is used for the purification of H-2 gas and as a catalyst for the dissociation of H-2 molecules. Since low energy ion irradiation is quite useful for surface modification of materials, the hydrogen absorption properties of Pd is expected to be improved by ion irradiation. In this work, we aimed at investigating the effect of ion irradiation on the hydrogen absorption rate of Pd. Ion irradiation was made with H+, He+ and Ar+ in an acceleration energy range from 30 to 350 keV up to a dose of 1 x 10(17)/cm(2). As a result, the ion irradiated Pd sample was found to induce a higher absorption rate than that of the unirradiated one. The initial hydrogen absorption rate was also found to increase with increasing irradiation energy. These results conclude that defects introduced in Pd by ion irradiation facilitate the rate of nucleation and growth of hydride. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：224 / 227

页数：4

共 8 条

[1]

Abe H, 2001, MATER SCI FORUM, V363-3, P156

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