Abstract: A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

Abstract: An image surveillance system and a method of detecting whether an object is left behind or taken away are provided. The image surveillance system includes: a foreground detecting unit which detects a foreground region based on a pixel information difference between a background image and a current input image; a still region detecting unit which detects a candidate still region by clustering foreground pixels of the foreground region, and determines whether the candidate still region is a falsely detected still region or a true still region; and an object detecting unit which determines whether an object is left behind or taken away, based on edge information about the true still region.

Abstract: A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst including the hierarchical mesoporous carbon as a support is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

Abstract: Provided are a CNT-mesoporous silica composite, a CNT-mesoporous carbon composite, a supported catalyst using the CNT-mesoporous carbon composite as a support, and a fuel cell using the supported catalyst as the anode, cathode, or both anode and cathode. The CNT-mesoporous carbon composite is prepared using the CNT-mesoporous silica composite. The CNT-mesoporous carbon composite has a high electrical conductivity due to the CNTs contained therein, and thus, when the CNT-mesoporous carbon composite is used in an electrode of a fuel cell, the fuel cell has a remarkably improved performance relative to the conventional catalyst support which does not contain CNTs.

Abstract: Provided are a mesoporous carbon containing at least one heteroatom boron and phosphorus, a manufacturing method thereof, and a fuel cell using the same. The mesoporous carbon contains a heteroatom such as boron and phosphorous to reduce sheet resistance, and thus can efficiently transfer electric energy. Such a mesoporous carbon can be used as a conductive material of electrodes for fuel cells. When the mesoporous carbon is used as a support for catalysts of electrodes, a supported catalyst containing the support can be used to manufacture a fuel cell having high efficiency.

Abstract: Disclosed herein are a refrigerator door having an improved configuration to prevent damage to a printed layer of a door front panel and a refrigerator having the same. The refrigerator includes a door to open and close a storage compartment. The door includes a front panel on a rear surface of which a printed layer is formed, a door sash coupled to the front panel and having at least one opening, and a foamed material charged in a space defined by the front panel and the door sash. The front panel includes a release layer formed on a surface of the printed layer to correspond to the contour of the at least one opening.

Abstract: A photoelectrode for a dye sensitized solar cell, a method of preparing the same, and a dye sensitized solar cell using the photoelectrode. The photoelectrode includes mesoporous titanium dioxide particles with an average particle diameter in a range of about 100 to about 2000 nm and a specific surface area in a range of about 150 to about 300 m2/g, wherein the mesopores of the mesoporous titanium dioxide particles have an average pore diameter in a range of about 2 to about 7 nm.

Abstract: A sulfur-containing mesoporous carbon that has mesopores with an average diameter of 2 to 10 nm, a method of preparing the same, a catalyst containing the mesoporous carbon as a catalyst support, and a fuel cell using the catalyst in which the sulfur-containing mesoporous carbon has a good affinity for and adhesion to catalyst particles so as to strongly support the catalyst particles due to the sulfur atoms substituting for carbons in an OMC carbon skeleton structure. The growth of metal catalyst particles is prevented when heat-treating the metal catalyst particles. The catalyst using the sulfur-containing mesoporous carbon can be applied to a fuel cell to prevent a reduction in catalytic activity due to increased particle size by an accumulation of catalyst particles. The catalyst containing the sulfur-containing mesoporous carbon as a catalyst support can be used to manufacture a fuel cell having an improved performance.

Abstract: An inverse opal structure having dual porosity, a method of manufacturing the inverse opal structure, a dye-sensitized solar cell, and a method of manufacturing the dye-sensitized solar cell improve the light scattering effects of an included light scattering layer and improve functions of included electrodes. The inverse opal structure includes a plurality of first pores regularly arranged in a photonic crystal structure and a plurality of second pores formed on walls of the first pores in which the second pores have a nano-sized diameter.

Abstract: The refrigerator includes a main body provided with a first storage compartment and a second storage compartment, vertically divided from each other. a first storage compartment door and a second storage compartment door are vertically disposed so as to open and close the first storage compartment and the second storage compartment of the main body. an illumination unit is provided at least one of the lower end portion of the first storage compartment door and the upper portion of the second storage compartment. Also an input unit is provided to input operation data of the illumination unit.

Abstract: A mesoporous carbon is prepared by mixing a carbon precursor, an acid, and a solvent to obtain a carbon precursor mixture; impregnating an ordered mesoporous silica (OMS) with the carbon precursor mixture; carbonizing the impregnated OMS at 800 to 1300° C. by irradiating microwave energy with a power of 100 to 2000 W thereon to form an OMS-carbon composite; and removing the mesoporous silica from the OMS-carbon composite. The method of preparing a mesoporous carbon can significantly reduce a carbonization time by carbonizing a carbon precursor using microwave energy in a silica template compared to a conventional method using a heat treatment. A supported catalyst and a fuel cell include the mesoporous carbon.

Abstract: An ordered mesoporous carbon (OMC) composite catalyst includes an OMC; and metal particles and at least one component selected from a group consisting of nitrogen and sulfur included in the OMC. The ordered mesoporous carbon composite catalyst may be formed by impregnating an ordered mesoporous silica with a mixture of at least one selected from the group consisting of a nitrogen-containing carbon precursor, and a sulfur-containing carbon precursor, a metal precursor, and a solvent; drying and heat-treating the impregnated OMS; carbonizing the dried and heat-treated OMS to obtain a carbon-OMS composite; and removing the OMS from the carbon-OMS composite. A fuel cell may contain the OMC composite catalyst.

Abstract: A method for manufacturing a carbon molecular sieve with increased microporosity; a method for manufacturing a carbon molecular sieve with increased microporosity and improved structural regularity; a carbon molecular sieve with increased microporosity; a carbon molecular sieve with increased microporosity and improved structural regularity; a catalyst for a fuel cell using the carbon molecular sieve; and a fuel cell using the catalyst are provided.

Abstract: An anode active material including a porous transition metal oxide; an anode including the anode active material; a lithium battery including the anode; and a method of preparing the anode active material.

Abstract: Provided are a mesoporous carbon and a method of preparing the same, where the mesoporous carbon is prepared using phenanthrene as a carbon source and a mesoporous silica as a template. The mesoporous carbon has a significantly low plane resistance, which can be obtained without sacrificing other physical properties, and thus obtains a high conductivity and effectively transfers electrical energy. Accordingly, a fuel cell electrode or a fuel cell which is produced using the mesoporous carbon as a conductive material has high efficiency. Furthermore, the mesoporous carbon may be used in various electrochemical devices as a conductive material.

Abstract: A heteroatom-containing mesoporous carbon has a pore diameter of 11 to 35 nm, has a specific surface area of 500 m2/g or more, and comprises a heteroatom. The heteroatom-containing mesoporous carbon is formed by a method including mixing a carbon precursor, a heteroatom-containing precursor, and silica particles to prepare a carbon precursor mixture; drying and carbonizing the carbon precursor mixture to prepare a silica-carbon composite; and removing silica from the silica-carbon composite. An anode and/or a cathode of fuel cell includes catalyst particles supported on the heteroatom-containing mesoporous carbon.

Abstract: A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst including the hierarchical mesoporous carbon as a support is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

Abstract: The present invention is related to a mesoporous carbon molecular sieve, which can be used as a catalyst carrier capable of improving the activity of a supported catalyst and a method of preparing the same. Additionally, the invention is related to a supported catalyst employing the mesoporous carbon molecular sieve as a carrier, and a fuel cell employing the supported catalyst. The mesoporous carbon molecular sieve has an average primary particle size of less than about 500 nm, an average mesopore size in the range of about 3 nm to about 6 nm, and a surface area in the range of about 500 m2/g to about 2000 m2/g.

Abstract: A sulfur-containing mesoporous carbon that has mesopores with an average diameter of 2 to 10 nm, a method of preparing the same, a catalyst containing the mesoporous carbon as a catalyst support, and a fuel cell using the catalyst in which the sulfur-containing mesoporous carbon has a good affinity for and adhesion to catalyst particles so as to strongly support the catalyst particles due to the sulfur atoms substituting for carbons in an OMC carbon skeleton structure. The growth of metal catalyst particles is prevented when heat-treating the metal catalyst particles. The catalyst using the sulfur-containing mesoporous carbon can be applied to a fuel cell to prevent a reduction in catalytic activity due to increased particle size by an accumulation of catalyst particles. The catalyst containing the sulfur-containing mesoporous carbon as a catalyst support can be used to manufacture a fuel cell having an improved performance.

Abstract: The present invention is related to a mesoporous carbon molecular sieve, which can be used as a catalyst carrier capable of improving the activity of a supported catalyst and a method of preparing the same. Additionally, the invention is related to a supported catalyst employing the mesoporous carbon molecular sieve as a carrier, and a fuel cell employing the supported catalyst. The mesoporous carbon molecular sieve has an average primary particle size of less than about 500 nm, an average mesopore size in the range of about 3 nm to about 6 nm, and a surface area in the range of about 500 m2/g to about 2000 m2/g.