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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
    2.
    发明申请
    CATALYST 有权

    公开(公告)号：US20210408555A1

    公开(公告)日：2021-12-30

    申请号：US15733735

    申请日：2019-04-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

    IPC: H01M4/92

    Abstract: Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ir are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.

    HUMIDITY SENSOR AND SENSOR ELEMENT
    6.
    发明申请
    HUMIDITY SENSOR AND SENSOR ELEMENT 有权
    湿度传感器和传感器元件

    公开(公告)号：US20150153296A1

    公开(公告)日：2015-06-04

    申请号：US14399381

    申请日：2013-05-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Stefan H. Gryska ,  Krzysztof A. Lewinski ,  Michael C. Palazzotto

    IPC: G01N27/22

    CPC classification number: G01N27/223 ,  G01N27/121 ,  G01N27/126 ,  G01N27/225

    Abstract: A humidity sensor element includes a dielectric substrate, a nonporous conductive electrode disposed on the dielectric substrate, a permeable conductive electrode having a thickness in a range of from 4 to 10 nanometers and permeable by water vapor, and a detection layer disposed between the nonporous conductive electrode and the permeable conductive electrode. Both conductive electrodes have respective conductive leads attached thereto. The detection layer includes a sulfonated copolymer including monomeric units comprising (I) and (II), Wherein x and y are independently integers in the range of from 2 to 6, and wherein each M independently represents H or an alkali metal. A humidity sensor including the humidity sensor element is also disclosed.

    Abstract translation: 一种湿度传感器元件，包括电介质基板，设置在电介质基板上的无孔导电电极，厚度在4至10纳米之间且可透过水蒸汽的可渗透导电电极，以及设置在无孔导电 电极和可渗透导电电极。 两个导电电极都有相应的导电引线。 检测层包括包含（I）和（II）的单体单元的磺化共聚物，其中x和y独立地为2至6的整数，并且其中每个M独立地表示H或碱金属。 还公开了一种包括湿度传感器元件的湿度传感器。

    CATALYST
    10.
    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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