Title:
POROUS CARBON MATERIAL
Document Type and Number:
Japanese Patent JP2009249222
Kind Code:
A
Abstract:
To provide a porous carbon material having pores with a diameter of 1 nm (hereinafter, called as subnanopores), and particularly useful as a hydrogen occlusion material.
Disclosed is a porous carbon material in which the volume of subnanopores exceeds 0.2 cm3/g and also the ratio of the volume of the subnanopores to the volume of all the pores occupies 85%. In the porous carbon material, preferably, the atomic ratio (H/C) between hydrogen and carbon is 0.05 to 0.4, and bulk density is 0.75 to 1.7 g/cm3. It is possible that the porous carbon material is packed into a hydrogen storage vessel in the form of powders, lumps or the like, and hydrogen is occluded or released by changing pressure or temperature.
Inventors:
FUKUYAMA YOSHIKI
IMAZUMI SEIJI
YADA SHIZUKUNI
IMAZUMI SEIJI
YADA SHIZUKUNI
Application Number:
JP2008098597A
Publication Date:
October 29, 2009
Filing Date:
April 04, 2008
Export Citation:
Assignee:
TOKUYAMA CORP
International Classes:
C01B31/02; B01J20/20; C01B3/00
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