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    • 6. 发明公开
    • 코어/쉘 구조의 이리듐 함유 나노입자 및 연료전지용 이리듐 담지 촉매
    • 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
    • KR1020120107028A
    • 2012-09-28
    • KR1020110023350
    • 2011-03-16
    • 한국과학기술연구원서울대학교산학협력단
    • 장종현최대기이국승성영은박희영
    • B82B1/00B82B3/00H01M4/90
    • 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.
    • 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。