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公开(公告)号：US09923210B2
公开(公告)日：2018-03-20
申请号：US14224291
申请日：2014-03-25
IPC分类号： H01M4/38 , H01M4/92 , H01M8/086 , H01M4/88 , H01M8/1018
CPC分类号： H01M4/921 , C22C1/002 , C22C5/04 , C22F1/14 , H01M4/881 , H01M4/926 , H01M8/086 , H01M2008/1095
摘要： A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
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公开(公告)号：US20210296656A1
公开(公告)日：2021-09-23
申请号：US17201817
申请日：2021-03-15
发明人： Jonathan David Brereton Sharman , Brian Ronald Theobald , David Thompsett , Edward Anthony Wright
IPC分类号： H01M4/92 , H01M8/04228 , H01M8/04225 , H01M4/86 , H01M4/90 , C25B9/23 , C25B11/091 , C25B11/093
摘要： A catalyst layer includes (i) an electrocatalyst, and (ii) a water electrolysis catalyst, iridium or iridium oxide and one or more metals M or an oxide thereof, wherein M is selected from transition metals and/or Sn, with the exception of ruthenium. Such a catalyst layer has utility in fuel cells that experience high electrochemical potentials.
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