METHOD AND APPARATUS FOR FORMING ELECTRODE CATALYST LAYER BY ELECTROSPRAY METHOD

    公开(公告)号:US20190341639A1

    公开(公告)日:2019-11-07

    申请号:US16515973

    申请日:2019-07-18

    Abstract: A method for forming an electrode catalyst layer by putting catalyst ink within an insulative container having a conductive nozzle in communication with the interior of the container and applying an electrospray voltage to the nozzle to cause electrospray of the catalyst ink through the tip end of the nozzle and thereby to form an electrode catalyst layer, the method includes preparing catalyst ink containing a mixture of at least electrode catalyst, polymer electrolyte binder and volatile organic compound and/or water, putting the catalyst ink within the container with a space remaining inside thereof and air-tightly sealing the container, and electrospraying with the space inside of the air-tightly sealed container being conditioned to have a negative pressure of a level at which the catalyst ink cannot drip off from the nozzle.

    SUPPORTED METAL CATALYST
    9.
    发明公开

    公开(公告)号:US20240055616A1

    公开(公告)日:2024-02-15

    申请号:US18259304

    申请日:2021-12-23

    CPC classification number: H01M4/925 H01M4/9075

    Abstract: The present invention provides a supported metal catalyst that has an electric conductivity acceptable as a catalyst and can suppress the generation of hydrogen peroxide.
    According to the present invention, provided is a supported metal catalyst, comprising: a support powder; and metal fine particles supported on the support powder, wherein: the support powder is an aggregate of support fine particles; the support fine particles have a chained portion structured by a plurality of crystallites being fusion-bonded to form a chain; the support fine particles are structured with a metal oxide; the metal oxide contains cerium; and an electric conductivity of the supported metal catalyst is 10−4 S/cm or higher.

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