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公开(公告)号：US20190036128A1
公开(公告)日：2019-01-31
申请号：US16072946
申请日：2017-01-26
IPC分类号： H01M4/88 , H01M4/90 , H01M4/92 , H01M8/1004
CPC分类号： H01M4/8882 , H01M4/885 , H01M4/8892 , H01M4/9016 , H01M4/9041 , H01M4/921 , H01M4/925 , H01M8/1004 , H01M2008/1095
摘要： A process for preparing a catalyst material, said catalyst material comprising a support material, a first metal and one or more second metals, wherein the first metal and the second metal(s) are alloyed and wherein the first metal is a platinum group metal and the second metal(s) is selected from the group of transition metals and tin provided the second metal(s) is different to the first metal is disclosed. The process comprises depositing a silicon oxide before or after deposition of the second metal(s), alloying the first and second metals and subsequently removing silicon oxide. A catalyst material prepared by this process is also disclosed.
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公开(公告)号：US20170244109A1
公开(公告)日：2017-08-24
申请号：US15509660
申请日：2015-09-08
CPC分类号： H01M4/9016 , B01J21/063 , B01J23/468 , B01J23/64 , B01J23/6445 , B01J23/6484 , B01J23/6486 , B01J23/6562 , B01J31/0212 , B01J31/04 , B01J35/023 , B01J35/065 , B01J35/1014 , B01J37/0215 , B01J37/0217 , B01J37/082 , B01J37/086 , B01J37/349 , C25B1/10 , C25B9/08 , C25B9/10 , C25B11/0484 , H01M4/8647 , H01M4/8652 , H01M8/1004 , H01M2008/1095 , Y02E60/366
摘要： A catalyst comprising particles of iridium oxide and a metal oxide (M oxide), wherein the metal oxide is selected from the group consisting of a Group 4 metal oxide, a Group 5 metal oxide, a Group 7 metal oxide and antimony oxide, wherein the catalyst is prepared by subjecting a precursor mixture to flame spray pyrolysis, wherein the precursor mixture comprises a solvent, an iridium oxide precursor and a metal oxide precursor is disclosed. The catalyst has particular use in catalysing the oxygen evolution reaction.
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公开(公告)号：US20170155163A1
公开(公告)日：2017-06-01
申请号：US15309942
申请日：2015-05-20
IPC分类号： H01M8/1004 , H01M4/92
CPC分类号： H01M8/1004 , H01M4/92 , H01M4/926
摘要： The invention includes a catalysed membrane and membrane electrode assembly. The membrane and membrane electrode assembly comprise an ion-conducting membrane component comprising an ion-conducting membrane, an anode catalyst layer, and a cathode catalyst layer. The anode catalyst layer comprises a first electrocatalyst component comprising a first platinum-containing electrocatalyst and a first carbon support. The first carbon support supports the first platinum-containing electrocatalyst, and the electrochemical platinum surface area in the anode catalyst layer is 5-100 cm2Pt/cm2 of the geometric electrode area of the anode catalyst layer. The cathode catalyst layer comprises a second electrocatalyst component and a second oxygen evolution reaction electrocatalyst. The second electrocatalyst component comprises a second platinum-containing electrocatalyst and a second carbon support, wherein the second carbon support supports the second platinum-containing electrocatalyst component.
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公开(公告)号：US20160104898A1
公开(公告)日：2016-04-14
申请号：US14891042
申请日：2014-05-14
发明人： Alejandro Martinez BONASTRE , Rachel Louise O'MALLEY , Geoffrey Hugh SPIKES , Frederick Tadeusz WAGNER
CPC分类号： H01M4/921 , C25C1/20 , H01M4/8807 , H01M4/8878 , H01M4/926 , H01M8/1004
摘要： A de-alloyed catalyst of formula PtXY, wherein X is selected from the group consisting of Ni, Co and Cr; and Y is selected from the group consisting of Zn, Al, Sn, Be, Pb, Ga, V, In, Y, Sr and Ti; characterised in that the total atomic composition relative to Pt of X and Y at the surface of the de-alloyed catalyst as determined from X-ray photoelectron spectroscopy is between 20 and 99% lower than the total atomic composition relative to Pt of X and Y in the bulk of the de-alloyed catalyst is disclosed.
摘要翻译： 式PtXY的脱合金催化剂，其中X选自Ni，Co和Cr; Y选自Zn，Al，Sn，Be，Pb，Ga，V，In，Y，Sr和Ti; 其特征在于，从X射线光电子能谱法测定的脱合金催化剂表面的X和Y相对于Pt的总原子组成相对于X和Y相对于Pt的总原子组成低20〜99％ 公开了大部分脱合金催化剂。
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公开(公告)号：US20160006041A1
公开(公告)日：2016-01-07
申请号：US14765679
申请日：2014-01-29
IPC分类号： H01M4/92
CPC分类号： H01M4/921 , B01J21/18 , B01J23/466 , B01J23/6484 , B01J23/6486 , B01J37/0201 , H01M4/86 , H01M4/881 , H01M4/8828 , H01M4/8842 , H01M4/925 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2004/8684 , H01M2008/1095 , H01M2250/20 , H01M2300/0082 , Y02E60/521 , Y02T90/32
摘要： A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of Nb and Ta, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum in the anode catalyst layer is from 0.01 to 0.2 mgPt/cm2.
摘要翻译： 一种操作具有设置在阳极和阴极之间的阳极，阴极和聚合物电解质膜的燃料电池的方法，包括向阳极供给具有低至一百五ppm的一氧化碳水平不足的不纯氢气流，其中阳极包括 包含一氧化碳耐受催化剂材料的阳极催化剂层，其中所述催化剂材料包括：（i）PtX的二元合金，其中X是选自Nb和Ta的金属，并且其中铂的原子百分比 该合金为45〜80原子％，合金中X的原子百分比为20〜55原子％。 和（ii）分散有PtX合金的载体材料; 其中铂在阳极催化剂层中的总负载量为0.01至0.2mgPt / cm 2。
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公开(公告)号：US20160126561A1
公开(公告)日：2016-05-05
申请号：US14765721
申请日：2014-01-29
IPC分类号： H01M4/92 , H01M8/1018 , H01M8/1004
CPC分类号： H01M4/921 , B01J21/18 , B01J23/466 , B01J23/6484 , B01J23/6486 , B01J37/0201 , H01M4/86 , H01M4/881 , H01M4/8828 , H01M4/8842 , H01M4/925 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2004/8684 , H01M2008/1095 , H01M2250/20 , H01M2300/0082 , Y02E60/521 , Y02T90/32
摘要： A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, and wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of Ti, V and Cr, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum in the anode catalyst layer is from 0.01 to 0.2 mgPt/cm2.
摘要翻译： 一种操作具有设置在阳极和阴极之间的阳极，阴极和聚合物电解质膜的燃料电池的方法包括向阳极供给具有低至5ppm的一氧化碳含量低的不纯氢气流，并且其中阳极 包括含有一氧化碳耐受性催化剂材料的阳极催化剂层，其中催化剂材料包括：（i）PtX的二元合金，其中X是选自Ti，V和Cr的金属，其中原子百分比 的合金中的铂为45〜80原子％，合金中的X的原子百分比为20〜55原子％。 和（ii）分散有PtX合金的载体材料; 其中铂在阳极催化剂层中的总负载量为0.01至0.2mgPt / cm 2。
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公开(公告)号：US20150372315A1
公开(公告)日：2015-12-24
申请号：US14765699
申请日：2014-01-29
CPC分类号： H01M4/921 , B01J21/18 , B01J23/466 , B01J23/6484 , B01J23/6486 , B01J37/0201 , H01M4/86 , H01M4/881 , H01M4/8828 , H01M4/8842 , H01M4/925 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2004/8684 , H01M2008/1095 , H01M2250/20 , H01M2300/0082 , Y02E60/521 , Y02T90/32
摘要： A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5ppm, and wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of rhodium and osmium, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum group metals (PGM) in the anode catalyst layer is from 0.01 to 0.2 mgPGM/cm2.
摘要翻译： 一种操作具有设置在阳极和阴极之间的阳极，阴极和聚合物电解质膜的燃料电池的方法，包括向阳极供给具有低至一百五ppm的一氧化碳含量低的不纯氢气流，并且其中阳极包括 包括一氧化碳耐受催化剂材料的阳极催化剂层，其中所述催化剂材料包括：（i）PtX的二元合金，其中X是选自铑和锇的金属，并且其中铂的原子百分比 该合金为45〜80原子％，合金中X的原子百分比为20〜55原子％。 和（ii）分散有PtX合金的载体材料; 其中阳极催化剂层中铂族金属（PGM）的总载量为0.01至0.2mgPGM / cm 2。
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