Toyo Tanso Co., Ltd.

Hironori Orikasa

Takahiro Morishita

Naoto Ohta

Takanori Kawano

Masaki Okada

Makoto Tatsumi

A porous carbon that has an extremely high specific surface area while being crystalline, and a method of manufacturing the porous carbon are provided. A porous carbon has mesoporesand a carbonaceous wallconstituting an outer wall of the mesopores, wherein the carbonaceous wallhas a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resinas a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000&#xb0; C. for 1 hour to cause the polyamic acid resin to undergo heat decomposition; washing the resultant sample with a sulfuric acid solution at a concentration of 1 mol/L to dissolve MgO away; and heat-treating the noncrystalline porous carbon in a nitrogen atmosphere at 2500&#xb0; C.

Porous carbon and method of manufacturing same

A porous carbon that can sufficiently adsorb water vapor on a high humidity side is provided. A porous carbon is characterized by having mesopores and micropores and having a water vapor adsorbed amount ratio, as defined by the following expression (1), of 1.8 or higher. It is particularly preferable that the water vapor adsorbed amount ratio as defined by the following expression (1) be 2.0 or higher. It is also preferable that the water vapor adsorbed amount at a relative humidity of 70% be 50 mg/g or greater.Water vapor adsorbed amount ratio=water vapor adsorbed amount at a relative humidity of 90%/water vapor adsorbed amount at a relative humidity of 70%.&#x2003;&#x2003;(1)

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Osaka, Japan

Hironori Orikasa