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    Use Of Anode Catalyst Layer
    2.
    发明申请
    Use Of Anode Catalyst Layer 有权

    公开(公告)号：US20210143443A1

    公开(公告)日：2021-05-13

    申请号：US17153927

    申请日：2021-01-21

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： Rachel Louise O'Malley ,  Enrico Petrucco

    IPC分类号： H01M4/92 ,  H01M8/1004 ,  H01M4/86 ,  B01J21/18 ,  B01J23/648 ,  B01J37/02 ,  H01M8/1018

    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 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.

    Use of an anode catalyst layer
    4.
    发明授权
    Use of an anode catalyst layer 有权

    公开(公告)号：US10938038B2

    公开(公告)日：2021-03-02

    申请号：US15874000

    申请日：2018-01-18

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： Rachel Louise O'Malley ,  Enrico Petrucco

    IPC分类号： H01M4/92 ,  H01M8/1004 ,  H01M4/86 ,  B01J21/18 ,  B01J23/648 ,  B01J37/02 ,  H01M8/1018 ,  B01J23/46 ,  H01M4/88 ,  B01J23/56 ,  B01J23/42 ,  H01M8/04298

    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 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.

    Catalyst Layer
    5.
    发明申请
    Catalyst Layer 审中-公开

    公开(公告)号：US20190221857A1

    公开(公告)日：2019-07-18

    申请号：US16361974

    申请日：2019-03-22

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： David Thompsett ,  Edward Anthony Wright ,  Janet Mary Fisher ,  Enrico Petrucco

    IPC分类号： H01M4/86 ,  H01M4/90

    CPC分类号： H01M4/8657 ,  H01M4/8647 ,  H01M4/8652 ,  H01M4/9016 ,  H01M4/9025 ,  H01M2008/1095

    摘要： A catalyst layer comprising an electrocatalyst and an oxygen evolution catalyst, wherein the oxygen evolution catalyst comprises a crystalline metal oxide comprising: (i) one of more first metals selected from the group consisting of yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, magnesium, calcium, strontium, barium, sodium, potassium, indium, thallium, tin, lead, antimony and bismuth; (ii) one or more second metals selected from the group consisting of Ru, Ir, Os and Rh; and (iii) oxygen characterised in that: (a) the atomic ratio of first metal(s):second metal(s) is from 1:1.5 to 1.5:1 (b) the atomic ratio of (first metal(s)+second metal(s)):oxygen is from 1:1 to 1:2 is disclosed.