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公开(公告)号:US20120094199A1
公开(公告)日:2012-04-19
申请号:US13375805
申请日:2010-05-27
申请人: Ekkehard Schwab , Sigmar Braeuninger , Alexander Panchenko , Claudia Querner , Oemer Uensal , Markus Vogt , Qinggang He , Nagappan Ramaswamy , Sanjeev Mukerjee
发明人: Ekkehard Schwab , Sigmar Braeuninger , Alexander Panchenko , Claudia Querner , Oemer Uensal , Markus Vogt , Qinggang He , Nagappan Ramaswamy , Sanjeev Mukerjee
IPC分类号: H01M4/90 , B01J23/89 , H01M8/08 , B01J23/648 , B01J23/656 , B01J21/18 , B01J23/42 , B01J23/652
CPC分类号: B01J21/18 , B01J23/89 , B01J23/8913 , B01J23/892 , B01J23/898 , B01J23/8986 , B01J23/8993 , B01J35/023 , B01J37/0205 , H01M4/921 , H01M4/926 , H01M8/086
摘要: The invention relates to a catalyst for electro-chemical applications comprising an alloy of platinum and a transition metal, wherein the transition metal has an absorption edge similar to the absorption edge of the transition metal in oxidic state, measured with x-ray absorption near-edge spectroscopy (XANES) wherein the measurements are performed in concentrated H3PO4 electrolyte. The invention further relates to a process for an oxygen reduction reaction using the catalyst as electrocatalyst.
摘要翻译: 本发明涉及一种用于电化学应用的催化剂,其包括铂和过渡金属的合金,其中过渡金属具有与氧化态的过渡金属的吸收边缘相似的吸收边缘, 边缘光谱(XANES),其中测量在浓H 3 PO 4电解质中进行。 本发明还涉及使用该催化剂作为电催化剂的氧还原反应方法。
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2.
公开(公告)号:US09186653B2
公开(公告)日:2015-11-17
申请号:US13704765
申请日:2011-06-17
CPC分类号: B01J23/52 , B82Y30/00 , B82Y40/00 , H01M4/9083 , H01M4/921 , H01M4/926 , H01M8/1011 , H01M2004/027 , Y02E60/50 , Y02E60/523 , Y10S977/773 , Y10S977/892
摘要: A catalyst for use in at the anode of direct methanol fuel cells is made from nanoparticles having a core-shell structure. The core is an alloy of platinum and gold. The core is surrounded by a first shell of ruthenium and a second shell containing a ternary alloy of platinum, gold, and ruthenium. The catalyst can be made by a reverse-micelle method or by a single-phase scalable method. The catalyst is highly stable under conditions of use and resists dissolution of ruthenium or platinum.
摘要翻译: 用于直接甲醇燃料电池阳极的催化剂由具有核 - 壳结构的纳米颗粒制成。 核心是铂金合金。 核心由钌的第一壳和包含铂,金和钌的三元合金的第二壳包围。 催化剂可以通过反胶束法或单相可伸缩的方法制备。 该催化剂在使用条件下高度稳定,并抵抗钌或铂的溶解。
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3.
公开(公告)号:US20130089812A1
公开(公告)日:2013-04-11
申请号:US13704765
申请日:2011-06-17
CPC分类号: B01J23/52 , B82Y30/00 , B82Y40/00 , H01M4/9083 , H01M4/921 , H01M4/926 , H01M8/1011 , H01M2004/027 , Y02E60/50 , Y02E60/523 , Y10S977/773 , Y10S977/892
摘要: A catalyst for use in at the anode of direct methanol fuel cells is made from nanoparticles having a core-shell structure. The core is an alloy of platinum and gold. The core is surrounded by a first shell of ruthenium and a second shell containing a ternary alloy of platinum, gold, and ruthenium. The catalyst can be made by a reverse-micelle method or by a single-phase scalable method. The catalyst is highly stable under conditions of use and resists dissolution of ruthenium or platinum.
摘要翻译: 用于直接甲醇燃料电池阳极的催化剂由具有核 - 壳结构的纳米颗粒制成。 核心是铂金合金。 核心由钌的第一壳和包含铂,金和钌的三元合金的第二壳包围。 催化剂可以通过反胶束法或单相可伸缩的方法制备。 该催化剂在使用条件下高度稳定,并抵抗钌或铂的溶解。
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