HYDROGEN STORING CARBON MATERIAL

摘要

Provided is a hydrogen storing carbon material with improved hydrogen storage capacity. The hydrogen storing carbon material has a total pore volume of at least 0.5 cm3/g, and the ratio of the total mesoporous volume to the total microporous volume per unit weight is at least 5. Moreover, the aforementioned hydrogen storing carbon material may have a nitrogen content of 0.5 wt% to less than 20 wt%. Furthermore, in an electrochemical measurement by chronopotentiometry in which the aforementioned hydrogen storing carbon material is used in a working electrode in the three-electrode method, when a cathode current is maintained at 1000 mA/g with respect to the aforementioned hydrogen storing carbon material, the stable potential may be -1.28 V or above.