Abstract:
PURPOSE: An electrode catalyst for a fuel cell membrane-electrode assembly is provided to have high hydrogen oxidation activity by the rise of catalyst components and a synergy between palladium and tungsten carbide without using a platinum catalyst of high cost. CONSTITUTION: An electrode catalyst for a fuel cell membrane-electrode assembly comprises tungsten carbide and catalyst component. The catalyst component comprises Pd and another metal catalyst component. The another metal component is one or more mixtures selected from a group consisting of Ni, Ir, Co, Mn, Au, Fe, and Ag. The tungsten carbide has the specific surface area of 10-30 m/g. The content of the tungsten carbide is 60-95 weight% on the basis of total weight of the catalyst. The content of the catalyst component is 5-40 weight%.
Abstract:
전기화학적 활성이 백금과 비교할 수 있을 정도이면서 훨씬 저렴한 연료전지용 전극촉매, 및 이 전극촉매를 포함하는 막 전극 접합체와 연료전지가 제시된다. 상기 연료전지용 전극촉매는 텅스텐 카바이드/탄소 메소포러스 복합 담체 상에 팔라듐 및 선택적으로 니켈 또는 금이 담지된 구조를 갖는다.
Abstract:
PURPOSE: An ion exchanger, a manufacturing method thereof, and an ion exchange filter device, an electrodeionization device including the same are provided to improve ion exchange capacity by enabling high-density charge without using a cross-linking agent. CONSTITUTION: An ion exchanger comprises the polymeric scaffold of an open cell; and a microporous polymeric matrix filled into the polymeric scaffold of an open cell. The microporous polymeric matrix includes an ion-conductive polymer which is made by polymerizing a monomer having one or more ion exchange functional groups and one or more cross-linking functional groups; and a cross-linking agent having two or more cross-linking functional groups.
Abstract:
PURPOSE: An electrode catalyst for fuel cell is provided to commercialize a polymer electrolyte membrane fuel cell by effectively replacing an expensive platinum electrode catalyst. CONSTITUTION: An electrode catalyst for fuel cell comprises a tungsten carbide/carbon complex carrier and a catalyst component dipped on the carrier. The catalyst component comprises palladium and at least one kind of other metal catalyst component is selected from the group consisting of nickel, gold, and iron and silver. The tungsten carbide/carbon complex carrier includes carbide crystal particles with an island phase and has a sea phase where carbon surrounds the crystal particles.
Abstract:
다중탭을포함하는전극적층구조체및 이를포함하는전지가개시된다. 개시된전극적층구조체는전극층과상기전극층에각각형성된제 1탭및 제 2탭을포함하는다중탭을지닐수 있다. 전극층은서로다른극성을지닌제 1전극층및 제 2전극층을포함할수 있으며, 각각의전극층은다중탭을포함할수 있다. 제 1전극층에형성된제 2탭들은서로전기적으로연결될수 있으며, 제 2전극층에형성된제 2탭들은서로전기적으로연결될수 있다.