Gas diffusion electrode and application to catalyzed electrochemical processes
    1.
    发明授权
    Gas diffusion electrode and application to catalyzed electrochemical processes 失效
    气体扩散电极和催化电化学过程的应用

    公开(公告)号:US06444347B1

    公开(公告)日:2002-09-03

    申请号:US09623206

    申请日:2000-08-29

    IPC分类号: H01M486

    摘要: A gas diffusion electrode comprises a cloth (12) of activated carbon fibers having a first face coated in a hydrophobic material (14) and a second face on which particles of catalyst (16) are fixed directly and are dispersed in substantially uniform manner over the fibers. The electrode can be used in an electrochemical cell of a proton exchange membrane fuel-cell battery, or in an electrochemical reactor, e.g. for making chlorine and caustic soda.

    摘要翻译: 气体扩散电极包括具有涂覆在疏水材料(14)中的第一面的活性碳纤维布(12)和其上直接固定催化剂(16)的颗粒并且基本均匀地分散在其上的第二面 纤维。 该电极可用于质子交换膜燃料电池电池的电化学电池,或电化学反应器中。 用于制造氯和苛性钠。

    Method of making an activated fabric of carbon fibers
    4.
    发明授权
    Method of making an activated fabric of carbon fibers 有权
    制造碳纤维活化织物的方法

    公开(公告)号:US6120841A

    公开(公告)日:2000-09-19

    申请号:US381060

    申请日:1999-09-13

    CPC分类号: D01F9/22 D01F9/14 D01F9/16

    摘要: A fabric made of fibers of a carbon-precursor cellulose material is impregnated with a composition containing at least one inorganic ingredient having a function of promoting dehydration of cellulose, and the fabric is subjected to heat treatment. This treatment consists in raising temperature at a speed lying in the range 1.degree. C./min to 15.degree. C./min followed by keeping the temperature constant in the range 350.degree. C. to 500.degree. C., and it is followed by a step of washing the fabric. This produces directly an activated fabric of carbon fibers having a specific surface area of not less than 600 m.sup.2 /g, without subsequent activation treatment at a higher temperature.

    摘要翻译: PCT No.PCT / FR98 / 00504 Sec。 371日期1999年9月13日 102(e)1999年9月13日PCT PCT。1998年3月12日PCT公布。 公开号WO98 / 41678 1998年9月24日由碳前体纤维素材料的纤维制成的织物用含有至少一种具有促进纤维素脱水功能的无机成分的组合物浸渍,对该织物进行热处理。 这种处理是以1℃/分钟至15℃/分钟的速度升温,然后将温度保持在350℃至500℃的范围内,然后是 洗涤织物的一个步骤。 这直接产生具有不小于600m 2 / g的比表面积的活性碳纤维织物,而不需要在较高温度下进行后续活化处理。