| 摘要 |
An object is to provide a method for storing hydrogen that allows hydrogen to be easily stored and easily released, and the method comprises cooling a liquid mixture of a carbon compound capable of forming a molecular compound and a protic polar solvent while bringing hydrogen into contact with the liquid mixture, to form thereby a solid substance having hydrogen enclosed therein; as a result, the carbon compound capable of forming a molecular compound becomes caged in a clathrate that does not readily enclose hydrogen, unless under ultrahigh pressure; the carbon compound forms a molecular compound with the hydrogen, while a clathrate capable of enclosing the hydrogen therein under high-pressure conditions also forms a hydrogen clathrate, thereby allowing to increase hydrogen storage density; and the hydrogen can be stored thus by maintaining the state of the solid substance, and can be easily extracted by simply dissolving the solid substance in water.
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