Irradiation treatment effects on hydrogen storage alloy

Onuki, Shun*; Shinohara, Yoshiaki*; Sutrisna, F.*; Utsumi, Michiaki*; Uchida, Hirohisa*; Matsumura, Yoshihito*; Abe, Hiroshi

The ion irradiation treatment improved the hydrogen absorption rate. The irradiation of electron beam to the LaNi $_{4.6}$ Al $_{0.4}$ hydrogen storage alloy surface was performed bye the dose of 1 10 $^{17}$ e $^{-}$ /cm $^{2}$ , at 1 MeV and 2 MeV of acceleration energy, in vacuum at 2 Pa and atmospheric pressure in air. Electron beam irradiated sample was found to induce a higher absorption rate than that of the un-irradiated one. The maximum value of the hydrogen absorption rate was obtained in the sample irradiated by 2 MeV electron beam in the vacuum condition. X-ray Photoelectron Spectra (XPS) of the samples indicate that composition of oxide layer by electron beam irradiation. The electron beam irradiation was found as an effective way to enhance the rate of the initial activation of the hydrogen absorption of La-Ni alloy.

Language	:	English
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Meeting title	:	International Symposium on Metal-Hydrogen Systems 2010 (MH 2010)
Held date	:	2010/07
Location (city)	:	Moscow
Location (country)	:	Russia
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Keywords	:	no keyword
Research Facility	:	1号加速器
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Article of JAEA R&D Review	:
Cooperating Institute	:	東海大学

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Registration No. : BB20101478
JAEA Abstracts No. :
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