ADSORBING/DESORBING MATERIAL

摘要

An adsorbing/desorbing agent including porous carbon is provided that can smoothly adsorb or desorb gases and liquids. An adsorbing/desorbing agent includes a porous carbon having micropores and mesopores and/or macropores, wherein each of the three types of pores has an outer wall made of a carbonaceous wall and the micropores are formed so as to communicate with the mesopores and/or the macropores. The adsorbing/desorbing agent is characterized in that x is within the range 1.0 × 10 -5 < x ‰¤ 1.0 × 10 -4 , and the relation between x and y satisfy the following expression (1), where x is a relative pressure (P/Po) measured using nitrogen as an adsorptive gas at 77 K and y is a mass transfer coefficient (K sap ): y ‰¥ 1.67 × 10 - 1 �¢ x + 2.33 × 10 - 6 .