Carbonaceous material for hydrogen storage and method for preparation thereof, carbonaceous material having hydrogen absorbed therein and method for preparation thereof, cell and fuel using carbonaceous material having hydrogen absorbed therein

摘要

The present invention provides a hydrogen-storing carbonaceous material obtained by heating a carbonaceous material in a gas atmosphere including hydrogen gas and substantially including no reactive gas as impurity gas to store hydrogen. According to the present invention, since the surface of the carbonaceous material can be cleaned and hydrogen can be stored in the carbonaceous material in the same gas atmosphere and a hydrogen-stored carbonaceous material can be produced only by controlling a heating process time in the gas atmosphere including the hydrogen gas and substantially including no reactive gas as the impurity gas, not only a hydrogen storage device can be made compact, but also a hydrogen storage system can be simplified and a hydrogen storage process can be simplified.