Method for forming a platinum coating on non-coductive substrates such
as glass
    1.
    发明授权
    Method for forming a platinum coating on non-coductive substrates such as glass 失效
    在非代谢性基底如玻璃上形成铂涂层的方法

    公开(公告)号:US5650202A

    公开(公告)日:1997-07-22

    申请号:US683443

    申请日:1996-07-18

    IPC分类号: C23C18/16 C23C18/44 H05H1/00

    摘要: Methods of forming a platinum deposit on a nonconductive substrate are diosed, comprising the steps of hydrophobically treating a carbon black powder, forming a solution of chloroplatinic acid, suspending the hydrophobically treated carbon black powder in the chloroplatinic acid, immersing a nonconductive substrate in the chloroplatinic acid and adding formaldehyde to said chloroplatinic acid. The hydrophobically carbon black powder suspended in the chloroplatinic acid catalyzes and drives the reduction of platinum within the chloroplatinic acid toward the nonconductive substrate and reduces the chloroplatinic acid forming metallic platinum on the nonconductive substrate. In a preferred embodiment, a platinum deposit is formed on a glass substrate immersed in the chloroplatinic acid and the step of hydrophobically treating the carbon black powder is accomplished by adding a CF.sub.4 gas plasma to the carbon black powder.

    摘要翻译: 公开了在非导电基材上形成铂沉积物的方法,包括以下步骤:疏水处理炭黑粉末,形成氯铂酸溶液,将疏水处理的炭黑粉末悬浮在氯铂酸中,将非导电底物浸入氯铂酸 酸并向所述氯铂酸加入甲醛。 悬浮在氯铂酸中的疏水性炭黑粉末催化并驱使氯铂酸中的铂还原成非导电性底物,并减少在非导电性基体上形成金属铂的氯铂酸。 在优选的实施方案中,在浸入氯铂酸的玻璃基板上形成铂沉积物,通过向炭黑粉末中加入CF 4气体等离子体来完成疏水性处理炭黑粉末的步骤。

    Fuel cell including a single sheet of a polymer electrolyte membrane
(PEM), the PEM being divided into regions of varying electrical and
ionic conductivity
    10.
    发明授权
    Fuel cell including a single sheet of a polymer electrolyte membrane (PEM), the PEM being divided into regions of varying electrical and ionic conductivity 失效
    包括单片聚合物电解质膜(PEM)的燃料电池,所述PEM被分成具有不同电导率和离子电导率的区域

    公开(公告)号:US5783324A

    公开(公告)日:1998-07-21

    申请号:US741755

    申请日:1996-11-05

    IPC分类号: H01M8/10 H01M8/24

    摘要: A fuel cell is provided including a single sheet film or ribbon of any leh of a Polymer Electrolyte Membrane ("PEM") wherein the PEM is divided into regions or zones of varying electrical conductivity and ionic conductivity, allowing the elimination of endplates and/or a bipolar configuration. In this non bipolar arrangement, means are provided for distributing fuel to only one side of the PEM and oxidant to only the other side of the PEM so as to prevent mixing of the fuel and oxidant.

    摘要翻译: 提供了一种燃料电池,其包括任何长度的聚合物电解质膜(“PEM”)的单片膜或带,其中PEM被分成具有不同导电性和离子电导率的区域或区域,允许消除端板和/或 双极配置。 在这种非双极性配置中,提供了仅将PEM和氧化剂一侧的燃料分配到PEM的另一侧的装置,以防止燃料和氧化剂的混合。