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, characterized in that the carbonaceous material has been subjected to a heat treatment at a temperature of 230 DEG C or higher under a reduced pressure; a carbonaceous material having hydrogen absorbed therein which is prepared by rendering a carbonaceous material having been subjected to a heat treatment at a temperature of 230 DEG C or higher under a reduced pressure to absorb hydrogen; and a cell and a fuel cell using the carbonaceous material having hydrogen absorbed therein. The heat treatment of a carbonaceous material at a temperature of 230 DEG C or higher under a reduced pressure cleans the surface thereof efficiently, which results in the increase of the area for the contact of the carbonaceous material with hydrogen atoms or hydrogen molecules.