연료전지의 MEA 열화의 실시간 측정 방법 및 측정 장치
    3.
    发明公开
    연료전지의 MEA 열화의 실시간 측정 방법 및 측정 장치 有权
    评估膜电解质组件降解的现场方法和使用其的装置

    公开(公告)号:KR1020130026274A

    公开(公告)日:2013-03-13

    申请号:KR1020110089781

    申请日:2011-09-05

    CPC classification number: H01M8/0491 H01M8/04552 Y02E60/50

    Abstract: PURPOSE: An in-situ method of evaluating the degradation of a membrane-electrolyte assembly is provided to detect the cell deterioration state of a fuel cell in real time and to remarkably reduce the sensing and analyzing time. CONSTITUTION: An in-situ method of evaluating the degradation of a membrane-electrolyte assembly comprises a current supply apparatus constantly supplying current by being connected to two coupling plates of a fuel cell stack; a voltage measuring apparatus measuring a voltage between two separators selected from (n+1) separators in the fuel cell stack; and a physical property determining apparatus determining a constant current, the capacity of an electric double layer, roughness factor, and electrochemical active surface area from the current value of the current supply apparatus and the voltage between the separators. [Reference numerals] (AA) Stack real-time measuring device; (BB) Current generator; (CC) Membrane electrode assembly; (DD) Separator

    Abstract translation: 目的:提供一种评估膜 - 电解质组件降解的现场方法,以实时检测燃料电池的电池劣化状态,显着降低感测和分析时间。 构成:评估膜 - 电解质组件的降解的原位方法包括通过连接到燃料电池堆的两个联接板来恒定地供应电流的电流供应装置; 测量在所述燃料电池堆中选自(n + 1)个分离器的两个分离器之间的电压的电压测量装置; 以及根据电流供给装置的当前值和分离器之间的电压确定恒定电流,双电层容量,粗糙度因子和电化学活性表面积的物理性质确定装置。 (标号)(AA)堆栈实时测量装置; (BB)电流发生器; (CC)膜电极组件; (DD)分离器

    코어/쉘 구조의 이리듐 함유 나노입자 및 연료전지용 이리듐 담지 촉매
    5.
    发明公开
    코어/쉘 구조의 이리듐 함유 나노입자 및 연료전지용 이리듐 담지 촉매 有权
    含有具有核心/壳结构的IRIDI的纳米颗粒和含有燃料电池的IRIDI的催化剂

    公开(公告)号:KR1020120107028A

    公开(公告)日:2012-09-28

    申请号:KR1020110023350

    申请日:2011-03-16

    Abstract: PURPOSE: An iridium contained nano-particles having a core and shell structure and a iridium dipped catalyst for fuel cells are provided to improve performance of the catalyst and fuel cells by including Pt and Ir in a nano-particle at optimal range of atomic ratio. CONSTITUTION: An iridium contained nano-particles includes a core and shell. The core includes Ir metal, and the shell includes Pt metal. The atomic ratio of the Pt and Ir within the nano particle is 0.1:1-10:1. The metal is supported by carbon. The catalyst for fuel cells is nano-particle. A manufacturing method of the nana-particles comprises the following steps: forming IrOx nano-particles on the carbon; forming Ir particle on the carbon by reducing the IrOx nano-particle; dispersing the Ir particle on the carbon into a solvent; adding a Pt precursor to the dispersed solution; and reducing into Pt.

    Abstract translation: 目的:提供铱含有核壳结构的纳米颗粒和用于燃料电池的铱浸渍催化剂,以通过在最佳原子比范围内将Pt和Ir纳入纳米颗粒中来提高催化剂和燃料电池的性能。 构成:含有纳米颗粒的铱包括核和壳。 核心包括Ir金属,壳体包括Pt金属。 纳米颗粒中Pt和Ir的原子比为0.1:1-10:1。 金属由碳支撑。 燃料电池的催化剂是纳米颗粒。 纳米颗粒的制造方法包括以下步骤:在碳上形成IrOx纳米颗粒; 通过还原IrOx纳米颗粒在碳上形成Ir颗粒; 将Ir颗粒分散在碳上至溶剂中; 向分散溶液中加入Pt前体; 并减少为Pt。

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