## 抄録

The kinetics of the hydriding and dehydriding reaction of Mg_{2}Ni and Mg-10 wt % Ni was investigated. The reaction rate at various hydride compositions was measured by the pressure change in a constant volume. In the case of Mg_{2}Ni, at the beginning of the reaction the amount of absorbed/desorbed hydrogen can be expressed by n = k(p_{0} - p_{eq}) (n_{s} - n_{0}), where n is the ratio of H to Mg in the solid, p_{0} and p_{eq} are the initial hydrogen pressure of the system and the equilibrium pressure, and n_{0} and n_{s} are the values of n at the start of the reaction and a constant around 2, respectively. After a transient period of approximately 1 min, a diffusion-controlled stage took place as dn/dt = k′(p - p_{eq})/t, where p is the pressure at time t. In the case of Mg-10 wt % Ni, throughout a run the absorption/desorption rate was expressed by dn/dt = k″ (p - p_{eq})^{1.25}.

本文言語 | 英語 |
---|---|

ページ（範囲） | 787-791 |

ページ数 | 5 |

ジャーナル | International Journal of Hydrogen Energy |

巻 | 7 |

号 | 10 |

DOI | |

出版ステータス | 出版済み - 1982 |

外部発表 | はい |

## All Science Journal Classification (ASJC) codes

- 再生可能エネルギー、持続可能性、環境
- 燃料技術
- 凝縮系物理学
- エネルギー工学および電力技術