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    Water electrolyzers
    1.
    发明授权
    Water electrolyzers 有权

    公开(公告)号：US11414770B2

    公开(公告)日：2022-08-16

    申请号：US16497883

    申请日：2018-03-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Krzysztof A. Lewinski ,  Sean M. Luopa ,  Jiyoung Park ,  Attila Molnar

    IPC: C25B9/23 ,  C25B1/04 ,  C25B13/08 ,  B01J23/42 ,  B01J23/46 ,  B01J23/54 ,  C25B13/04 ,  C25B9/73

    Abstract: Water electrolyzer comprising a membrane having first and second opposed major surfaces, a thickness extending between the first and second major surfaces, and first, second, and third regions equally spaced across the thickness, wherein the first region is the closest region to the first major surface, wherein the second region is the closest region to the second major surface, wherein the third region is located between the first and second regions, wherein the first and third regions are each essentially free of both metallic Pt and Pt oxide, and wherein the second region comprises at least one of metallic Pt or Pt oxide; a cathode comprising a first catalyst on the first major surface of the membrane; and an anode comprising a second catalyst on the second major surface of the membrane.

    CATALYST
    7.
    发明申请
    CATALYST 有权

    公开(公告)号：US20220059849A1

    公开(公告)日：2022-02-24

    申请号：US17309508

    申请日：2019-10-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andrew J. L. Steinbach ,  Amy E. Hester ,  Sean M. Luopa ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Grant M. Thoma

    IPC: H01M4/92 ,  H01M4/88 ,  H01M4/90

    Abstract: Catalyst material comprising nanoparticles dispersed within a metal oxide layer, the metal oxide layer comprises metal oxide comprising at least one metal cation, wherein the nanoparticles comprise Pt, wherein the nanoparticles comprise less than 10 atom % of oxygen, and wherein the metal oxide layer has an average thickness not greater than 50 nanometers. The catalyst material comprising nanoparticles dispersed within a metal oxide layer can be converted, for example, to nanoporous catalyst layer comprising nanoparticles fused together, wherein the nanoparticles comprise Pt, wherein the nanoparticles comprise less than 10 atom % of oxygen, and wherein the layer has an average thickness not greater than 50 nanometers. The nanoporous catalyst layer is useful, for example, in fuel cell membrane electrode assemblies.

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