| 摘要 |
The present invention is: a hydride composite containing NaH and a metal salt containing an alkali earth metal or a transition metal; and a preparation process of a hydrogen gas including a reaction process to react such a hydride composite with an ammonia gas. Further, the present invention is: a hydride composite containing NaH, a metal salt containing an alkali earth metal or a transition metal, and an ammonia source that is a solid at ordinary temperatures and generates an ammonia gas by decomposition; and a preparation process of a hydrogen gas including a reaction process to heat such a hydride composite.
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