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 H 2 is released in the temperature range from 180 to 400°C while 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 TiCl 3 (1 mol.%). That is, the product desorbs a large amount of hydrogen (∼5.5 wt.%) in the temperature from 150 to 250°C under the condition of a heating rate of 5°C/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.
| Original language | English |
|---|---|
| Pages (from-to) | 271-276 |
| Number of pages | 6 |
| Journal | Journal of Alloys and Compounds |
| Volume | 365 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2004 Feb 25 |
| Externally published | Yes |
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Keywords
- Gas-solid reaction
- Hydrogen absorbing materials
- Mechanochemical processing
- Metal hydrides
ASJC Scopus subject areas
- Metals and Alloys
Cite this
Lithium nitride for reversible hydrogen storage. / Ichikawa, Takayuki; Isobe, Shigehito; Hanada, Nobuko; Fujii, Hironobu.
In: Journal of Alloys and Compounds, Vol. 365, No. 1-2, 25.02.2004, p. 271-276.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lithium nitride for reversible hydrogen storage
AU - Ichikawa, Takayuki
AU - Isobe, Shigehito
AU - Hanada, Nobuko
AU - Fujii, Hironobu
PY - 2004/2/25
Y1 - 2004/2/25
N2 - 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 H 2 is released in the temperature range from 180 to 400°C while 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 TiCl 3 (1 mol.%). That is, the product desorbs a large amount of hydrogen (∼5.5 wt.%) in the temperature from 150 to 250°C under the condition of a heating rate of 5°C/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.
AB - 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 H 2 is released in the temperature range from 180 to 400°C while 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 TiCl 3 (1 mol.%). That is, the product desorbs a large amount of hydrogen (∼5.5 wt.%) in the temperature from 150 to 250°C under the condition of a heating rate of 5°C/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.
KW - Gas-solid reaction
KW - Hydrogen absorbing materials
KW - Mechanochemical processing
KW - Metal hydrides
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UR - http://www.scopus.com/inward/citedby.url?scp=0345761993&partnerID=8YFLogxK
U2 - 10.1016/S0925-8388(03)00637-6
DO - 10.1016/S0925-8388(03)00637-6
M3 - Article
VL - 365
SP - 271
EP - 276
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -