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Inventor:
Pak; Chan-ho
Address:
Seoul, KR
No. of patents:
37
Patents:












Patent Number Title Of Patent Date Issued
8197786 Porous carbon material and method of manufacturing the same June 12, 2012
Porous carbon materials and methods of manufacturing the same are provided. One method includes forming a carbon-metal oxide composite by heating a coordination polymer to form a carbon-metal oxide composite, and then removing the metal oxide from the carbon-metal oxide composite. Th
8173096 Carbon nanosphere with at least one opening, method for preparing the same, carbon nanosphere-im May 8, 2012
A carbon nanosphere has at least one opening. The carbon nanosphere is obtained by preparing a carbon nanosphere and treating it with an acid to form the opening. The carbon nanosphere with at least one opening has higher utilization of a surface area and electrical conductivity and
8147723 Porous anode active material, method of manufacturing the same, anode comprising the same, and l April 3, 2012
A porous anode active material including a Group 14 element oxide and a non-active material having no reactivity with lithium; a method of manufacturing the porous anode active material; an anode including the porous anode active material; and a lithium battery including the anode. T
8142954 Fuel composition for fuel cell and fuel cell using the same March 27, 2012
A fuel composition for a fuel cell includes at least one primary fuel that produces protons and electrons, and at least one peroxide. As an example, the primary fuel may be at least one aqueous solution containing methanol, ethanol, or formic acid. When the fuel composition is used, the
8083905 Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same December 27, 2011
The internal and external walls of the carbon nanotubes are doped with nano-sized metallic catalyst particles uniformly to a degree of 0.3-5 mg /cm.sup.2. The carbon nanotubes are grown over a carbon substrate using chemical vapor deposition or plasma enhanced chemical vapor deposition.
8057577 Desulfurizer for fuel gas for fuel cell and desulfurization method using the same November 15, 2011
A desulfurizer for fuel gas for a fuel cell includes: a first adsorption tank including an adsorber having selective adsorption capacity for a thiophene-based compound and a second adsorption tank including an adsorber having selective adsorption capacity for a mercaptan-based compou
8048586 Fuel cell stack structure November 1, 2011
A fuel cell stack induces smooth current collection and liquid or gas flow without using a heavy bipolar plate. The fuel cell stack includes: a membrane and electrode assembly (MEA) in which an electrolyte membrane is disposed between a cathode electrode and an anode electrode; a current
8043595 Mesoporous carbon including heteroatom, manufacturing method thereof, and fuel cell using the me October 25, 2011
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 transfe
8017282 Carbon nanotube, support catalyst, method of preparing the support catalyst and a fuel cell comp September 13, 2011
Carbon nanotubes have an R value of at least 1.3, where R is defined as the ratio (I.sub.D/I.sub.G) of an integral value of D band intensity (I.sub.D) to an integral value of G band intensity (I.sub.G) in the Raman spectrum. Such carbon nanotubes can be used to form a support catalyst
7981826 Supported catalyst and method of preparing the same July 19, 2011
A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal
7919426 Supported catalyst, electrode using the supported catalyst and fuel cell including the electrode April 5, 2011
Provided are a supported catalyst, an electrode including the same, and a fuel cell using the electrode. The supported catalyst includes a carbon-based catalyst support and metal catalyst particles having an average diameter of 3.5 to 5 nm and an amount of 80 to 90 parts by weight ba
7910259 Anode for fuel cell, manufacturing method thereof, and fuel cell including the same March 22, 2011
A method of manufacturing an anode for a fuel cell including: performing an acid treatment for a carbon-based compound; washing the resultant obtained from the acid treatment with water and then performing a freeze-drying (lyophilization) process; forming a microporous diffusion laye
7867941 Sulfur-containing mesoporous carbon, method of manufacturing the same, and fuel cell using the m January 11, 2011
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
7867940 Supported catalyst and method of preparing the same January 11, 2011
A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal
7854913 Mesoporous carbon, method of preparing the same, and fuel cell using the carbon December 21, 2010
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.degree. C. by irradiating microwave
7837968 Carbon nanosphere with at least one opening, method for preparing the same, carbon nanosphere-im November 23, 2010
A carbon nanosphere has at least one opening. The carbon nanosphere is obtained by preparing a carbon nanosphere and treating it with an acid to form the opening. The carbon nanosphere with at least one opening has higher utilization of a surface area and electrical conductivity and
7811959 Metal oxide-carbon composite catalyst support and fuel cell comprising the same October 12, 2010
A catalyst support for a fuel cell, having good hydrophilic property and electroconductivity, an anode including the same, and a fuel cell including the anode are provided. The catalyst support is composed of a metal oxide-carbon composite.
7776779 Mesoporous carbon, manufacturing method thereof, and fuel cell using the mesoporous carbon August 17, 2010
A method of preparing a mesoporous carbon includes mixing a mesophase pitch, 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; heat-treating and carbonizing the impregnat
7732094 Mesoporous carbon composite, method of preparing the same, and fuel cell using the mesoporous ca June 8, 2010
A mesoporous carbon composite includes mesoporous carbon having mesopores; a conductive polymer coated on only an outer surface of the mesoporous carbon; and an organic electrolyte. The mesoporous carbon composite may be prepared by impregnating an ordered mesoporous silica (OMS) with a
7718570 Carbon molecular sieve and method for manufacturing the same May 18, 2010
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
7691773 Supported catalyst and method for preparing the same April 6, 2010
The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle size of catalytic met
7670582 Mesoporous carbon and method of producing the same March 2, 2010
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 sacr
7642217 Pt/Ru alloy catalyst for fuel cell January 5, 2010
A platinum (Pt)/ruthenium (Ru) alloy catalyst, highly resistant to CO poisoning, having a lattice constant of 3.856-3.885 .ANG. and a particle size of 2-5 nm, and supported on a carrier. The Pt/Ru alloy catalyst is highly resistant to CO poisoning, thereby allowing for higher catalytic
7589043 Supported catalyst, electrode using the supported catalyst and fuel cell including the electrode September 15, 2009
Provided are a supported catalyst, an electrode including the same, and a fuel cell using the electrode. The supported catalyst includes a carbon-based catalyst support and metal catalyst particles having an average diameter of 3.5 to 5 nm and an amount of 80 to 90 parts by weight ba
7585584 Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same September 8, 2009
Carbon nanotubes for use in a fuel cell, a method for fabricating the same, and a fuel cell using the carbon nanotubes for its electrode are provided. The internal and external walls of the carbon nanotubes are doped with nano-sized metallic catalyst particles uniformly to a degree o
7566514 Catalyst for cathode in fuel cell July 28, 2009
A catalyst particle having high oxygen reduction reactivity and low methanol oxidation reactivity, a supported catalyst comprising the catalyst particle, and a fuel cell using a cathode comprising the supported catalyst are provided. The whole catalyst particle or at least the surfac
7518045 Method of preparing carbon nanocages April 14, 2009
The present invention provides a simple method of mass producing high purity carbon nanocages. The method of preparing carbon nanocages comprises introducing an inert gas into a reactor equipped with a spray nozzle and raising the temperature of the reactor to a pyrolysis temperature
7402544 Mesoporous carbon molecular sieve and supported catalyst employing the same July 22, 2008
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 meso
7229942 Supported catalyst and method for preparing the same June 12, 2007
The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle size of catalytic met
7220697 Mesoporous carbon molecular sieve and supported catalyst employing the same May 22, 2007
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 meso
7179560 Composite electrolyte membrane and fuel cell containing the same February 20, 2007
A composite electrolyte membrane for decreasing the crossover of polar organic fuel and a fuel cell employing the membrane are provided. The composite electrolyte membrane includes a modified silica in which silicon atoms have substituents as represented by formula 1 and formula 2; a
7132385 High loading supported carbon catalyst, method of preparing the same, catalyst electrode includi November 7, 2006
The present invention is related to a high loading supported carbon catalyst having Pt or a Pt alloy supported into an electrically conductive carbon support. Specifically, in the carbon supported catalyst, a loading of the supported Pt or Pt alloy is in the range of about 50% to abo
6812187 Carbon molecular sieve and method for manufacturing the same November 2, 2004
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
6265342 Catalyst for purification of exhaust gas from diesel engine July 24, 2001
A catalyst for purifying exhaust gases from diesel engines with an improved purification efficiency for both nitrogen oxide and particulates in exhaust emissions is provided. The catalyst includes: (i) a first catalytic layer containing a carrier portion including iron (Fe)-doped mod
5916839 Catalyst for purifying automobile exhausts June 29, 1999
A catalyst useful in purifying exhaust gases is disclosed which includes: (a) a carrier including a composite of SiO.sub.2, .gamma.-alumina and an alkali earth metal oxide selected from the group consisting of MgO and BaO; (b) an oxygen absorbing material; and (c) at least one noble meta
5906958 Catalyst for purifying automobile exhausts and method of manufacturing the catalyst May 25, 1999
A catalyst for purifying exhaust gases of an automobile engine including a carrier coprecipitated with a material absorbing oxides of nitrogen (NO.sub.x) and an active noble metal wherein the material absorbing oxides of nitrogen is at least one of barium manganese oxide (BaMnO.sub.3) an
5814577 Catalyst and fabrication method of same for purifying exhaust gases of automobile September 29, 1998
A catalyst capable of purifying exhaust gases comprising an oxygen absorbing material and a carrier impregnated with a noble metal, and wherein the oxygen absorbing material comprises cobalt-cerium oxide.










 
 
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