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    CATALYSED MEMBRANE
    1.
    发明申请
    CATALYSED MEMBRANE 有权

    公开(公告)号：US20220344694A1

    公开(公告)日：2022-10-27

    申请号：US17596614

    申请日：2020-08-21

    申请人： JOHNSON MATTHEY FUEL CELLS LIMITED

    发明人： Dash FONGALLAND ,  Jonathan SHARMAN

    IPC分类号： H01M8/1004 ,  H01M4/90 ,  H01M4/88

    摘要： The present invention provides a catalysed ion-conducting membrane comprising an ion-conducting membrane, an electrocatalyst layer having two opposing faces, and a layer A comprising an ion-conducting material and a carbon containing material. Also provided are methods for preparing the catalysed ion-conducting membrane.

    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
    5.
    发明申请
    Catalyst 有权

    公开(公告)号：US20210020953A1

    公开(公告)日：2021-01-21

    申请号：US17063788

    申请日：2020-10-06

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： Alejandro Martinez Bonastre ,  Geoffrey Hugh Spikes ,  Rachel Louise O'Malley

    IPC分类号： H01M4/88 ,  H01M4/92 ,  H01M4/90 ,  H01M8/1004

    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.

    Membrane-seal assembly
    6.
    发明授权
    Membrane-seal assembly 有权

    公开(公告)号：US10333157B2

    公开(公告)日：2019-06-25

    申请号：US15529679

    申请日：2015-11-23

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： Robert Jeffrey Coleman ,  Julie O'Sullivan ,  Angus Dickinson

    IPC分类号： H01M8/0271 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/1062 ,  H01M8/1065 ,  H01M8/00

    摘要： The invention includes a reinforced membrane-seal assembly that comprises a reinforcing component, ion-conducting material, and seal material. The reinforcing component comprises a central region comprising a plurality of apertures extending from a first surface to a second surface of the reinforcing component, the central region having a first aperture area density; an inner peripheral border region surrounding the central region, where the inner peripheral border region is devoid of apertures; and an outer peripheral border region comprising a plurality of apertures extending from the first surface to the second surface of the reinforcing component, the outer peripheral border region having a second aperture area density. The outer peripheral border region surrounds the inner peripheral border region. The ion-conducting material at least partially fills each aperture in the central region of the reinforcing component and seal material fills each aperture in the outer peripheral border region of the reinforcing component.

    Membrane Electrode Assembly
    8.
    发明申请
    Membrane Electrode Assembly 审中-公开

    公开(公告)号：US20170155163A1

    公开(公告)日：2017-06-01

    申请号：US15309942

    申请日：2015-05-20

    申请人： Johnson Matthey Fuel Cells Limited

    发明人： Rachel Louise O'MALLEY

    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.