Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Pohang University of Science and Technology Foundation

Dae-jong Yoo

Chan-ho Pak

Kang-hee Lee

Seon-ah Jin

Seol-Ah Lee

Hyuk Jae Chang

Kyung-jung Kwon

Jong-Won Lee

Seong-woo Choi

Ji-man Kim

Ki-Hyun Kim

Jun-ho Lee

Victor Roev

Jae-sung Lee

Seung-jae Lee

Ji-rae Kim

So-young Park

Sang-hoon Joo

Qin Xin

Kyo-Sung Park

Luhua Jiang

Dong-jin Ham

Seol Ah Lee

Jin-hoe Kim

Gongguan Sun

Sueng-hoon Han

Gang-hong Bae

A fuel cell electrode catalyst including an active complex including a cerium (Ce)-nitrogen (N) bond and having an oxygen reduction activity. Also, a method of preparing a fuel cell electrode catalyst, the method including providing a pre-catalyst including a pre-active complex having a cerium-oxygen bond; and thermally treating the pre-catalyst in the presence of a nitrogen-containing material at a temperature of from about 700&#xb0; C. to about 2000&#xb0; C. to prepare the electrode catalyst, the electrode catalyst including an active complex comprising a cerium-nitrogen bond. Also a fuel cell membrane-electrode assembly, the membrane-electrode assembly including: a cathode; an anode disposed opposite to the cathode; and an electrolyte membrane disposed between the cathode and the anode, at least one of the anode and the cathode including the fuel cell electrode catalyst.

Electrode catalyst for fuel cell, method of preparing the same, and membrane electrode assembly and fuel cell, each including the same

A composite including: a carbonaceous material; and a solid solution including a first metal and a cerium oxide, wherein the solid solution is disposed on the carbonaceous material.

Composite, catalyst including the same, fuel cell and lithium air battery including the same

An electrode catalyst for a fuel cell, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the electrode catalyst. The electrode catalyst has excellent electrochemical activity compared to the currently commercially available Pt/C catalyst and is much cheaper than a catalyst using platinum. The electrode catalyst includes tungsten carbide having a specific surface area of about 10 to about 30 m/g, and a metal catalyst comprising palladium (Pd) or palladium alloy.

Electrode catalyst and method of preparing electrode catalyst for fuel cell, and membrane electrode assembly and fuel cell including same

An electrode catalyst for a fuel cell, the electrode catalyst including an active particle, the active particle including a core including platinum, a transition metal, and a first nonmetal element; and a shell on the core, the shell including an alloy including platinum and a second nonmetal element, wherein the first and second nonmetal elements included in the core and the shell are the same or different.

Fuel cell electrode catalyst including a core containing platinum, a transition metal, and a nonmetal element and a shell containing platinum and the nonmetal element electrode including the same, and method for preparing the same

A composite support including: an ordered mesoporous carbon including mesopores having an average diameter of about 2 nanometers to about 8 nanometers; and silicon carbide dispersed in the ordered mesoporous carbon.

Composite support, method of preparing the same, electrode catalyst including the composite support, and membrane-electrode assembly and fuel cell each including the electrode catalyst

A conductive composition, a polymer obtained from the conductive composition, a method of preparing the composition, an electrode and electrolyte membrane of a fuel cell, each including at least one of the composition and the polymer, and a fuel cell including at least one of the composition and the polymer. The conductive composition includes at least one benzoxazine-based compound with a conductive functional group and a cross-linkable compound. A composition including a conductive functional group and a polymer that is a polymerization product of the composition demonstrates good resistance to chemicals, heat, and acid. An electrode for fuel cells that includes the same demonstrates improved electrical conductivity.

Conductive composition and method of preparation, polymer thereof, and electrode, electrolyte membrane and fuel cell including the composition or polymer

A composite including a metal having oxygen-reducing activity, nitrogen and carbon, the composite comprising polyhedral particles, an electrode catalyst including the composite, a method of preparing the composite, and a fuel cell using the composite.

Composite, electrode catalyst including the composite, method of preparing the composite, and fuel cell including the composite

An electrode catalyst for fuel cell, a method of preparing the electrode catalyst, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the membrane electrode assembly. The electrode catalyst includes a crystalline catalyst particle incorporating a precious metal having oxygen reduction activity and a Group 13 element, where the Group 13 element is present in a unit lattice of the crystalline catalyst particle.

Electrode catalyst for fuel cell, method of preparation, MEA including the catalyst, and fuel cell including the MEA

An electrode catalyst for a fuel cell includes a complex support including at least one metal oxide and carbon-based material; and a palladium (Pd)-based catalyst supported by the complex support. A method of manufacturing the electrode catalyst includes dissolving a precursor of a palladium (Pd)-based catalyst in a solvent and preparing a mixture solution for a catalyst; adding a complex support including at least one metal oxide and a carbon-based material to the mixture solution for a catalyst and stirring the mixture solution to which the complex support is added; drying the mixture solution for a catalyst, to which the complex support is added, in order to disperse the precursor of the Pd-based catalyst on the complex support; and reducing the precursor of the Pd-based catalyst dispersed on the complex support. A fuel cell includes the electrode catalyst.

Electrode catalyst for fuel cell, method of manufacturing the same, and fuel cell using the electrode catalyst

A composite electrolyte membrane for a fuel cell with a controlled phosphoric acid-based material retention ratio. The composite electrolyte membrane includes an electrolyte membrane containing a compound having a phosphoric acid-based material-containing functional group. Also disclosed are a method for manufacturing the composite electrolyte membrane, and a fuel cell including the composite electrolyte membrane.

Composite electrolyte membrane for fuel cell, method of manufacturing the membrane, and fuel cell including the membrane

Electrode catalysts for fuel cells, a method of manufacturing the same, a membrane electrode assembly (MEA) including the same, and a fuel cell including the MEA are provided. The electrode catalysts include a first catalyst alloy containing palladium (Pd), cobalt (Co), and phosphorus (P), a second catalyst alloy containing palladium (Pd) and phosphorus (P), and a carbon-based support to support the catalysts.

Electrode catalyst for fuel cell, method of manufacturing the same, membrane electrode assembly including the electrode catalyst, and fuel cell including the membrane electrode assembly

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.

Mesoporous carbon composite containing carbon nanotube

Non-platinum (Pt) electrode catalysts for fuel cells, methods of manufacturing the same, and fuel cells including the non-Pt electrode catalysts. Each of the non-Pt electrode catalysts for fuel cells includes at least palladium (Pd) and iridium (Ir), and further includes a metal, oxide of the metal, or mixture thereof for compensating for the activity of Pd and Ir.

Electrode catalyst for fuel cell comprising palladium and iridium, method of preparing electrode catalyst, and fuel cell using electrode catalyst

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 catalytic activity can increase, and thus a fuel cell having improved performance can be manufactured.

Fuel composition for fuel cell and fuel cell using the same

A method of preparing a supported catalyst, a supported catalyst prepared by the method, and a fuel cell using the supported catalyst. In particular, a method of preparing a supported catalyst by preparing a primary supported catalyst containing catalytic metal particles that are obtained by a primary gas phase reduction reaction of a portion of the final loading amount of a catalytic metal, and reducing the remaining portion of the catalytic metal by a secondary liquid phase reduction reaction using the primary supported catalyst. The supported catalyst contains catalytic metal particles having a very small average particle size, which are uniformly distributed on a carbon support at a high concentration, and thus exhibits maximal catalyst activity. A fuel cell produced using the supported catalyst has improved efficiency.

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Seoul, South Korea

Dae-jong Yoo