METHOD FOR ELECTROLYZING ALKALINE WATER
    5.
    发明申请

    公开(公告)号:US20180334751A1

    公开(公告)日:2018-11-22

    申请号:US15775267

    申请日:2016-12-22

    发明人: Akiyoshi MANABE

    IPC分类号: C25B1/10 C25B11/04 C25B15/08

    摘要: Provided is an alkaline water electrolysis method capable of reducing or preventing degradation in cathode and anode performance even in an operation of repeated cycles of frequent starting and stopping, and/or even in an operation involving a significant output variation.The present invention provides an alkaline water electrolysis method including repeated cycles of intermittent operation, including an electrolysis step of performing alkaline water electrolysis including storing an electrolytic solution (16) in a circulation tank (5), feeding the electrolytic solution (16) in the circulation tank (5) to an anode chamber (2) and to a cathode chamber (3), returning an electrolytic solution generated in the cathode chamber (3) and an electrolytic solution generated in the anode chamber (2) to the circulation tank (5), mixing together these electrolytic solutions in the circulation tank (5), and recirculating the mixed electrolytic solution to the anode chamber (2) and to the cathode chamber (3), and a step of adding a catalyst activation material formed of a metal salt soluble in the electrolytic solution (16) prior to starting of the electrolysis step; and in the electrolysis step, a metal component in the catalyst activation material is deposited on a surface of the cathode.

    ELECTRODE
    9.
    发明申请
    ELECTRODE 审中-公开

    公开(公告)号:US20180258543A1

    公开(公告)日:2018-09-13

    申请号:US15761124

    申请日:2016-09-22

    IPC分类号: C25B11/04 C02F1/461

    摘要: An electrode (10) is disclosed in which a first layer (30) of TiOx with a porosity in the range 0-3% is present on at least one surface of an electrode substrate (20), a second layer (40) of TiOx with a porosity of greater than 3 and up to 20% is present on the first layer (30) of TiOx. An electro-catalytic layer (50) is present on the second layer (40) of TiOx. x is in the range 1-2 for the first (30) and second layer (40) of TiOx. A process for the manufacture of the electrode (10) is disclosed as are uses thereof.