METHOD FOR PRODUCING CATALYST-COATED MEMBRANES

    公开(公告)号:US20230361315A1

    公开(公告)日:2023-11-09

    申请号:US18247009

    申请日:2021-09-29

    摘要: The invention relates to a method for producing a catalyst-coated polymer membrane for an electrolyser and/or a fuel cell. In a first step, the method preferably comprises the provision of a glass-ceramic substrate. A mesoporous catalyst layer is then preferably synthesized on the glass-ceramic substrate. In a next step, a polymer membrane is preferably pressed onto the glass-ceramic substrate coated with the catalyst layer at a first temperature T1. This results in a sandwich structure. In a final process step, the sandwich structure is separated, the catalyst layer being separated from the glass-ceramic substrate and adhering to the polymer membrane.
    In addition, the invention relates to a polymer membrane which has been produced by the process of the type mentioned at the outset, and to an electrolyser or a fuel cell having such a polymer membrane.

    Nickel electrode, method for manufacturing same, and use thereof

    公开(公告)号:US11414771B2

    公开(公告)日:2022-08-16

    申请号:US16613337

    申请日:2018-05-09

    摘要: Nickel electrodes having high mechanical stability and advantageous electrochemical properties, in particular, enhanced gas evolution in water electrolysis, are described. These electrodes comprising electrically conductive nickel wire mesh or a lattice-like nickel expanded metal webs, and a layer of mutually adherent nanoporous nickel particles applied only to either the nickel mesh wires or the nickel expanded metal webs, obtainable by partially reducing the spherical nickel hydroxide particles in a reducing atmosphere between 270 to 330° C. to obtain partially reduced, spherical Ni/NiO particles, producing a paste from the Ni/NiO particles, an organic and/or inorganic binder, a surfactant and, optionally, additional adjuvants, applying the paste as a coating to the electrically conductive nickel mesh or nickel expanded metal, and annealing the coated nickel mesh or nickel expanded metal in a reducing atmosphere at 500 to 800° C. A method for manufacturing the nickel electrode is also described.

    Artificial photosynthesis module
    9.
    发明授权

    公开(公告)号:US11098410B2

    公开(公告)日:2021-08-24

    申请号:US16212297

    申请日:2018-12-06

    摘要: Provided are a photocatalyst electrode, an artificial photosynthesis module, and an artificial photosynthesis device that have low electrical resistance, even in a case where the area is increased, in a case where a transparent conductive layer is used. The photocatalyst electrode is a photocatalyst electrode that has a substrate, a transparent conductive layer, a photocatalyst layer, and a linear metal electrical conductor, and splits water with light to produce a gas. The substrate, the transparent conductive layer, and the photocatalyst layer are laminated in this order, and the linear metal electrical conductor is in contact with the transparent conductive layer. The artificial photosynthesis module has the oxygen evolution electrode that splits the water with the light to produce oxygen, and a hydrogen evolution electrode that splits the water with the light to produce hydrogen. The oxygen evolution electrode and the hydrogen evolution electrode are disposed in series in a traveling direction of the light. At least one of the oxygen evolution electrode or the hydrogen evolution electrode has the configuration of the above-described photocatalyst electrode. The artificial photosynthesis device has the artificial photosynthesis module, and circulates and utilizes water.