ELECTRODE ASSEMBLY AND ELECTROLYSER
    5.
    发明申请

    公开(公告)号:WO2021148265A1

    公开(公告)日:2021-07-29

    申请号:PCT/EP2021/050368

    申请日:2021-01-11

    摘要: The present invention relates to an electrode assembly and an electrolyser using one or more of said assemblies, in particular the present invention provides an electrode assembly for the production of hydrogen comprising: i) an anode structure which comprises an anode located within an electrolysis compartment, ii) a cathode structure which comprises a cathode located within an electrolysis compartment containing a solution of an alkali metal hydroxide, characterised in that the cathode comprises: a) An electrically conductive metal substrate, and b) An electrocatalytic layer on the substrate and comprising a. at least one metal selected from platinum group metals, rhenium, nickel, cobalt and molybdenum and b. at least 50% by volume of an electrically conductive support material,wherein the electrically conductive support material is formed from particles having an average particle size of less than 5 microns (5 µm) and which are not metallic particles.

    ELECTRODE FOR THE ELECTROLYTIC EVOLUTION OF HYDROGEN

    公开(公告)号:WO2023012124A1

    公开(公告)日:2023-02-09

    申请号:PCT/EP2022/071591

    申请日:2022-08-01

    摘要: The present invention relates to an electrode and in particular to an electrode suitable for use as a cathode for hydrogen evolution in industrial electrolytic processes and a method for its preparation. The electrode comprises a metal substrate provided with a catalytic coating, said catalytic coating comprising a first protective layer in direct contact with the substrate, said first protective layer comprising platinum, in the form of metal or its oxides, and a second layer applied on top of said first protective layer, said second layer comprising platinum, palladium and an element selected from the group of rare earths, in the form of metals or their oxides, wherein said second layer comprises 15-40% by weight of platinum and 10-30% by weight of palladium and 40-75% by weight of an element selected from the group of rare earths referred to metals.

    ELECTRODE WITH ENHANCED SHUTDOWN TOLERANCE
    9.
    发明申请

    公开(公告)号:WO2022043509A1

    公开(公告)日:2022-03-03

    申请号:PCT/EP2021/073772

    申请日:2021-08-27

    摘要: The present invention concerns an electrode for use in an alkaline electrolysis process, the electrode comprising: a metal substrate; a catalytic layer disposed on the metal substrate, the catalytic layer comprising nickel and nickel oxide and having a porosity less than about 1 m2/g; and an active composition disposed both on and within the catalytic layer, the active composition comprising one or more metal compounds selected from the group consisting of a cobalt compound, an iridium compound, a rhodium compound, an iron compound, a platinum compound, a lithium compound and a manganese compound. The invention also concerns an alkaline water electrolysis unit comprising the electrode and a method of forming the electrode.