Lithium nitride for reversible hydrogen storage

Journal of Alloys and Compounds Volume 365 Issue 1-2 Page 271-276 published_at 2004-02-25
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Title ( eng )
Lithium nitride for reversible hydrogen storage
Creator
Isobe Shigehito
Hanada Nobuko
Fujii Hironobu
Source Title
Journal of Alloys and Compounds
Volume 365
Issue 1-2
Start Page 271
End Page 276
Abstract
In this paper, we examined the basic properties in the 1:1 mixture of lithium amide LiNH2 and lithium hydride LiH as a candidate of reversible hydrogen storage materials. The thermal desorption mass spectra of the ball milled mixture without any catalysts indicated that hydrogen H2 is released in temperature range from 180 to 400 ℃ with emitting a considerable amount of ammonia NH3. On the other hand, the ball milled mixture containing a small amount of TiCl3 as a catalyst showed the most superior hydrogen storage properties among the 1:1 mixtures with a small amount of catalysts, Ni, Fe, Co metals and TiCl3 (1 mol.%). That is, the product desorbs a large amount of hydrogen (~5.5 wt.%) in the temperature from 150 to 250 ℃ under the condition of a heating rate of 5 ℃/min, but it does not desorb ammonia at all within our experimental accuracy. In addition, we confirmed that the product shows an excellent cycle retention with an effective hydrogen capacity of more than 5 wt.% and a high reaction rate until at least 3 cycles.
Keywords
Hydrogen storage
Chemical hydride
Lithium amide, -imide, -hydride, -nitride
Ball milling
Ammonia
TiCl3
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
Elsevier B.V.
Date of Issued 2004-02-25
Rights
Copyright (c) 2003 Elsevier B.V.
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0925-8388
[DOI] 10.1016/S0925-8388(03)00637-6
[NCID] AA10817249
[DOI] http://dx.doi.org/10.1016/S0925-8388(03)00637-6