CARBONACEOUS MATERIAL FOR HYDROGEN STORAGE AND METHOD FOR PREPARATION THEREOF, CARBONACEOUS MATERIAL HAVING HYDROGEN ABSORBED THEREIN AND METHOD FOR PREPARATION THEREOF, CELL AND FUEL CELL USING CARBONACEOUS MATERIAL HAVING HYDROGEN ABSORBED THEREIN

摘要

A carbonaceous material for hydrogen storage which is prepared by subjecting a carbonaceous material to a heat treatment prior to the absorption of hydrogen under a hydrogen pressure less than 50 atm.; a carbonaceous material having hydrogen absorbed therein which is prepared by rendering a carbonaceous material having been subjected to a heat treatment to absorb hydrogen under a hydrogen pressure less than 50 atm.; and a cell or a fuel cell using the above carbonaceous material having hydrogen absorbed therein. The heat treatment of a carbonaceous material prior to the absorption of hydrogen under a hydrogen pressure less than 50 atm. results in the formation of a carbonaceous material for hydrogen storage having significantly improved ability for absorbing hydrogen.