Abstract:
The present invention relates to a method of synthesizing nano-sized metal and alloy nanoparticles by depositing metal and alloy nanoparticles having excellent uniformity of particle size on the surface of powder which is a parental material using a vapor deposition method, and melting the parental material by a solvent or heat, and to a production device thereof. More specifically, as an effective and inexpensive synthesizing method for solving a multiple and high-priced synthesizing method using chemical reduction reaction which is demerits of an existing method, provided are a method of synthesizing highly uniform sized metal, metal supported to alloy catalyst nanoparticles and carbon, and alloy catalyst nanoparticles and a production device thereof.
Abstract:
The present invention relates to a cobalt-phosphorus (Co-P), cobalt-boron (Co-B) catalyst containing phosphorous and boron and a method for producing the same. More specifically, a Co-P and Co-B anode catalyst containing phosphorous having high catalyst efficiency during a hydrogen oxidation reaction (HOR) in an alkali solution for an anode of an alkali fuel cell (AFC) is produced through electro plating and electroless plating techniques. The Co-P and Co-B anode catalyst of the present invention exhibits a much faster hydrogenation speed than an existing nickel and alloy catalyst. The Co-P and Co-B catalyst of the present invention is a material having high catalyst activity in an HOR of an anode of an AFC. The cost is low and the HOR is highly effective so that the Co-P and Co-B catalyst can replace precious metal catalysts (platinum) and nickel catalysts. Processes are simple, making commercialization of the Co-P and Co-B catalyst highly possible.
Abstract:
The present invention relates to a polymer electrolyte membrane fuel cell containing a complex catalyst in which an alloy or a mixture of phosphoric acid-doped polyimidazole based electrolyte thin film, metals, and chalcogen elements are deposited on a carbon carrier. According to the present invention, a user can utilize the polymer electrolyte membrane fuel cell with an improved tenacity, power generation efficiency, and stability in a high temperature operation, and use a simple production method of the complex catalyst included in the present invention.
Abstract:
본 발명은 유체 펌핑 장치에 관한 것으로, 보다 상세하게는 연료전지 시스템 등에서 사용될 수 있는 유체 펌핑 장치에서, 펌프와 고온의 유체가 통과하는 유체의 일시적 저장부를 공간적으로 분리시킴으로써, 펌프의 내구성을 유지시키고, 교체 및 관리가 용이하며, 경량화가 가능한 유체 펌핑 장치에 관한 것이다. 또한 본 발명의 유체 펌핑 장치는 설치 장소의 제약이 없으며, 장치가 간단할 뿐만 아니라 고장 요인이 적은 효과를 가진다. 아울러 본 발명에 따른 연료전지용 유체 펌핑 장치는 별도의 냉각과정 없이도 고온 가스를 펌핑(pumping) 할 수l 있으며, 따라서 연료 사용률을 높여 연료전지 시스템의 효율 향상에 기여한다.