Abstract: 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 mesopores 4 and a carbonaceous wall 3 constituting an outer wall of the mesopores 4, wherein the carbonaceous wall 3 has a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000° 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° C.

Abstract: 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%.

Abstract: A porous carbon having a high oxidation reaction temperature, a method of manufacturing the porous carbon, and an adsorption/desorption apparatus using the porous carbon are provided. A porous carbon includes mesopores and a carbonaceous wall forming an outer wall of the mesopores, characterized by being composed mainly of hard carbon and having an oxidation reaction temperature of 600° C. or higher. It is desirable that the porous carbon have an average interlayer spacing d(002) of 0.350 nm or greater, as determined by an X-ray diffraction method after heating the porous carbon at 2500° C. or higher for 30 minutes to 60 minutes.

Abstract: 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%.

Abstract: 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/P0) measured using nitrogen as an adsorptive gas at 77 K and y is a mass transfer coefficient (Ksap): y?1.67×10?1x+2.33×10?6.

Abstract: A porous carbon and a method of manufacturing the same are provided, that can remarkably improve the performance by increasing the BET specific surface area even when it contains boron. A porous carbon is characterized by having a C—B—O bonding structure existing in at least a surface thereof and having a BET specific surface area of 300 m2/g or greater as determined from a nitrogen adsorption isotherm at 77K. The porous carbon can be manufactured by a method including the steps of: mixing a boric acid and a magnesium citrate together, to prepare a mixture; heat-treating the mixture in a vacuum atmosphere, a non-oxidizing atmosphere, or a reducing atmosphere, to prepare a heat-treated substance; and removing a template from the heat-treated substance.

Abstract: 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 mesopores 4 and a carbonaceous wall 3 constituting an outer wall of the mesopores 4, wherein the carbonaceous wall 3 has a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000° 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° C.

Abstract: Provided are a metal-carbon composite material which can have improved productivity, has sufficient performance, can be used in a wide range of fields, and can have a reduced burden on the environment; and a method for manufacturing the same. The metal-carbon composite material includes: carbon; and nanoparticles formed of a metal or a metal oxide, wherein the ratio of the nanoparticles is 50% by weight or more and 99% by weight or less based on the total amount of the carbon and the nanoparticles, the metal-carbon composite material having a structure in which nanoparticles are dispersed in carbon.

Abstract: A graphene-on-oxide substrate according to the present invention includes: a substrate having a metal oxide layer formed on its surface; and, formed on the metal oxide layer, a graphene layer including at least one atomic layer of the graphene. The graphene layer is grown generally parallel to the surface of the metal oxide layer, and the inter-atomic-layer distance between the graphene atomic layer adjacent to the surface of the metal oxide layer and the surface atomic layer of the metal oxide layer is 0.34 nm or less. Preferably, the arithmetic mean surface roughness Ra of the metal oxide layer is 1 nm or less.

Abstract: A graphene-on-oxide substrate according to the present invention includes: a substrate having a metal oxide layer formed on its surface; and, formed on the metal oxide layer, a graphene layer including at least one atomic layer of the graphene. The graphene layer is grown generally parallel to the surface of the metal oxide layer, and the inter-atomic-layer distance between the graphene atomic layer adjacent to the surface of the metal oxide layer and the surface atomic layer of the metal oxide layer is 0.34 nm or less. Preferably, the arithmetic mean surface roughness Ra of the metal oxide layer is 1 nm or less.