Abstract:
PURPOSE: A porous electrode catalyst layer for a fuel cell is provided to obtain an electrode with improved bindability with a hydrocarbon-based film by lowering a glass transition temperature of a hydrocarbon-based binder. CONSTITUTION: A porous electrode catalyst layer for a fuel cell comprises sulfonated hydrocarbon, porogen, and platinum catalyst. The sulfonated hydrocarbon is such that single or two or more hydrocarbons are sulfonated, wherein the hydrocarbon is selected from polysulfone, polyarylene ethersulfone, polyetherethersulfone, polyethersulfone, polyimide, polyimidazole, polybenzimidazole, polyether benzimidazole, polyarylene ethylene ketone, polyether ether ketone, and polystyrene.
Abstract:
3-아미노프로필트리에틸실란과 테트라에틸오소실리케이트의 기공 구조를 양말단에 포함하고 인산이 화학적으로 결합된, 주쇄가 폴리디메틸실록산(poly dimethyl siloxane)인 무기고분자로 이루어진 고분자 및 측쇄에 양이온 교환기를 갖는 양성자 전도성 고분자로 이루어진 고분자 블렌드 전해질 막 및 그 제조방법에 관한 것이다. 일반적으로, 양이온 전도성 전해질 막은 고온에서는 그 양이온 전도성이 급격히 떨어진다. 그러나, 효율성과 비용적인 이점이 있어, 고온에서도 양이온 전도성이 우수한 전해질 막이 요구되는 바, 본 발명에서는 고온용 고분자 블렌드 전해질 막과 이의 제조 방법을 제공하고자 한다. 연료전지, 전해질 막, 고분자 블렌드, 무기고분자, 인산
Abstract:
PURPOSE: A manufacturing method of platinum/fullerene hybrid nanoparticles or platinum ruthenium/fullerent hybrid nanoparticles, a catalyst manufactured thereby, and a manufacturing method of the catalyst are provided to offer high activity with uniform and small size. CONSTITUTION: A manufacturing method of platinum/fullerene hybrid nanoparticles includes a step for drying liquid at 200 ~ 300°C after making the liquid by mixing fullerene, platinum acetylacetonate, a reducing agent and a surfactant. A manufacturing method of platinum ruthenium/fullerent hybrid nanoparticles includes a step for drying the liquid in 200 ~ 300°C after mixing fullerene, platinum acetylacetonate, ruthenium acetyl acetonate, a reducing agent and a surface active agent. The reducing agent is 1,2- hexadecandiols, ethylene glycol and diethylene glycol.
Abstract:
A method for preparing a mixed electrode catalyst material for a solid electrolyte fuel cell is provided to reduce the amount of platinum required for producing a high-quality electrode catalyst, thereby reducing the manufacturing cost of an electrode catalyst and fuel cell. A method for preparing a mixed electrode catalyst material for a solid electrolyte fuel cell comprises the steps of: (a) dispersing a RuOs alloy material dispersed in the state of highly dispersed crystalline nanoparticles into water, injecting nitrogen thereto to remove undesired gases, and preliminarily injecting hydrogen thereto as a reducing agent; introducing a platinum precursor solution to the dispersion of RuOs alloy material and further injecting hydrogen thereto for 1 hour after the completion of the platinum precursor; and (c) washing and drying the resultant product after the completion of the hydrogen injection to obtain a powdery material.
Abstract:
PURPOSE: A proton-conducting polymer is provided to have a plurality of proton-conducting polymers, to have excellent dimensional stability, and to have high ion exchange capacity and hydrogen ion conductivity. CONSTITUTION: A proton-conducting polymer is represented by chemical formula 1. In the chemical formula 1: m is an integer from 0.01-0.99; n is an integer from 10-1,000; Y is a chemical bond, oxygen, or sulfur, independently; each of D and E is a divalent coupling group which comprises one or more selected from a substituted or unsubstituted C1-10 alkylene group, a substituted or unsubstituted C2-10 alkenylene group, a substituted or unsubstituted C6-20 arylene group, a sulfone group, or a carbonyl group; and Z is represented by chemical formula 2a.
Abstract:
본 발명은 양친성 블록 공중합체 , 이의 제조방법 및 이를 이용한 연료전지용 막에 관한 것이다. 보다 상세하게는 소수부로서 PSEK[poly(arylene sulfone ether ketone)]과 친수부의 PSSAN[poly(sulfonated styrene-co-acrylonitrile)]을 포함하는 블록 공중합체에 관한 것이다. 상기 양친성 블록 공중합체를 이용하여 제조된 고분자 전해질 막은 100℃ 이상의 고온에서도 수소이온전도도가 감소하는 경향을 보이지 않고, 오히려 증가하는 경향을 보였으며, 높은 열적/화학적 치수안정성을 보인다.
Abstract:
본 발명은 탄소에 담지된 전이금속 나노입자 촉매의 제조방법에 관한 것으로서, 더욱 상세하게 설명하면 에탄올에 안정화제를 녹인 혼합액에 담지체를 넣어 분산액을 제조하고, 여기에 전이금속 전구체를 에탄올에 용해시킨 전구체 용액을 혼합 및 교반한 후 환원공정을 거쳐 전이금속 나노입자 촉매를 제조하는 것을 특징으로 한다. 본 발명의 탄소에 담지된 전이금속 나노입자 촉매의 제조방법은 간단한 공정으로 좁은 입자 크기 분포와 넓은 분산도를 가지는 탄소분말에 담지된 전이금속 나노입자의 제조가 가능하여 연료전지의 전극물질 등에 유용하게 적용될 수 있다. 연료전지, 전이금속, 수소화붕소나트륨, 안정화제, 나노입자
Abstract:
PURPOSE: A hydrophilic-hydrophobic block copolymer is provided to ensure excellent thermomechanical stability, and to obtain an electrolyte film for a polymer electrolyte fuel cell with excellent thermal, chemical, and mechanical stability while having high hydrogen ion conductivity at high temperature. CONSTITUTION: A hydrophilic-hydrophobic block copolymer comprises one or more of homopolymers having hydrophobicity and polymers having hydrophilicity. The hydrophobic part includes the structure represented by chemical formula 1 and the hydrophilic part includes the structure represented by chemical formula 2. In chemical formula 2, p, m and are mutually independent integer, and m > r.
Abstract:
PURPOSE: A poly(arylene ether) copolymer having a sulfonic acid group is provided to ensure high hydrogen ion conductivity and excellent mechanical properties due to high sulfonation degree and high average molecular weight. CONSTITUTION: A poly(arylene ether) copolymer having a sulfonic acid group is represented by chemical formula 3. A polymer electrolyte membrane comprises the poly(arylene ether) copolymer. The polymer electrolyte membrane further includes one or more polymers selected from the group consisting of polyimide, polyetherketone, polysulfone, polyethersulfone, polyetherethersulfone, polybenzimidazole, polyphenylene oxide, polyphenylene sulfide, polystyrene, polytrifluorostyrene sulfonic acid, polystyrenesulfonic acid, polyurethane, and branched sulfonated polysulfone ketone copolymers.
Abstract:
PURPOSE: An electrode for a polymer electrolyte membrane fuel cell is provided to reinforce mechanical strength and to maintain the thickness of a catalyst layer after long time driving by adding carbon nano fibers to an electrode catalyst layer of a fuel cell. CONSTITUTION: An electrode for a polymer electrolyte membrane fuel cell comprises, 100.0 parts by weight of a catalyst, 20~80 parts by weight of hydrogen ion conductive polymer electrolyte binder, 1~60 parts by weight of carbon nanofiber, 1~20 parts by weight of radical inhibitor. The carbon nano fiber is one selected from the group consisting of carbon nanotubes with 5~100 nm size, carbon nanofiber, carbon nanowires, carbon nanohorns, and carbon nanorings, and their mixture.