抄録
The reaction between Mg2Ni and hydrogen was investigated by volumetric method. The reaction was divided into two stages; the initial stage was a very rapid reaction whose rate could not be measured, the later stage was the slower step whose rate was expressed by the equation dn/DT=K′(P-Peq/t where k′ is the constant, Peq and P are hydrogen pressures at equilibrium and at time t. The reaction rate of the later stage did not depend upon temperature, content of hydrogen in the alloy, and directions of the reaction, desorption and absorption. The amount of reacted hydrogen, Δn, in the initial stage was expressed by Δn=k(Po-Peq)(ns-no where P0 is the initial hydrogen pressure, ns is a constant around 4, n0 is a ratio of H to Mg2Ni at the initiation of the run, and k is a constant. The apparent activation energy of the reaction was nearly zero. It is considered that the reaction between the alloy and gaseous hydrogen takes place on metallic Mg2Ni in the initial stage and in the later stage reaction proceeds on the deactivated site.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 295-303 |
| ページ数 | 9 |
| ジャーナル | International Journal of Hydrogen Energy |
| 巻 | 6 |
| 発行部数 | 3 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 1981 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
これを引用
Kinetics of the reaction between Mg2Ni and hydrogen. / Nomura, K.; Akiba, Etsuo; Ono, S.
：: International Journal of Hydrogen Energy, 巻 6, 番号 3, 01.01.1981, p. 295-303.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Kinetics of the reaction between Mg2Ni and hydrogen
AU - Nomura, K.
AU - Akiba, Etsuo
AU - Ono, S.
PY - 1981/1/1
Y1 - 1981/1/1
N2 - The reaction between Mg2Ni and hydrogen was investigated by volumetric method. The reaction was divided into two stages; the initial stage was a very rapid reaction whose rate could not be measured, the later stage was the slower step whose rate was expressed by the equation dn/DT=K′(P-Peq/t where k′ is the constant, Peq and P are hydrogen pressures at equilibrium and at time t. The reaction rate of the later stage did not depend upon temperature, content of hydrogen in the alloy, and directions of the reaction, desorption and absorption. The amount of reacted hydrogen, Δn, in the initial stage was expressed by Δn=k(Po-Peq)(ns-no where P0 is the initial hydrogen pressure, ns is a constant around 4, n0 is a ratio of H to Mg2Ni at the initiation of the run, and k is a constant. The apparent activation energy of the reaction was nearly zero. It is considered that the reaction between the alloy and gaseous hydrogen takes place on metallic Mg2Ni in the initial stage and in the later stage reaction proceeds on the deactivated site.
AB - The reaction between Mg2Ni and hydrogen was investigated by volumetric method. The reaction was divided into two stages; the initial stage was a very rapid reaction whose rate could not be measured, the later stage was the slower step whose rate was expressed by the equation dn/DT=K′(P-Peq/t where k′ is the constant, Peq and P are hydrogen pressures at equilibrium and at time t. The reaction rate of the later stage did not depend upon temperature, content of hydrogen in the alloy, and directions of the reaction, desorption and absorption. The amount of reacted hydrogen, Δn, in the initial stage was expressed by Δn=k(Po-Peq)(ns-no where P0 is the initial hydrogen pressure, ns is a constant around 4, n0 is a ratio of H to Mg2Ni at the initiation of the run, and k is a constant. The apparent activation energy of the reaction was nearly zero. It is considered that the reaction between the alloy and gaseous hydrogen takes place on metallic Mg2Ni in the initial stage and in the later stage reaction proceeds on the deactivated site.
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UR - http://www.scopus.com/inward/citedby.url?scp=0019656355&partnerID=8YFLogxK
U2 - 10.1016/0360-3199(81)90047-1
DO - 10.1016/0360-3199(81)90047-1
M3 - Article
AN - SCOPUS:0019656355
VL - 6
SP - 295
EP - 303
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 3
ER -