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    • 1. 发明授权
    • Porous nickel coated electrodes
    • 多孔镀镍电极
    • US4251344A
    • 1981-02-17
    • US114242
    • 1980-01-22
    • Christopher R. S. Needes
    • Christopher R. S. Needes
    • C25B11/04C25B11/06H01M4/98B05D5/12
    • H01M4/98C25B11/0447
    • An improved electrode having a surface mixture of nickel and porous nickel produced by applying a paste mixture of NiAl.sub.2 and Ni.sub.3 B together with a vehicle to a substrate. After burning off the vehicle and firing in air at a temperature of 450.degree. to 650.degree. C. and thereafter sintering at a temperature of 800.degree. to 900.degree. C. in nitrogen, the coating on the substrate contains Ni.sub.2 Al.sub.3, NiAl.sub.2 B and nickel together with a thin overlayer of B.sub.2 O.sub.3. After removing the intermetallic aluminum, boron and boron oxide by dissolution with sodium hydroxide, the surface of the substrate contains Raney nickel supported on a structure of nickel. The resulting electrodes can be used as cathodes in water or brine electrolysis cells.
    • 一种改进的电极,其具有镍和多孔镍的表面混合物,其通过将NiAl 2和Ni 3 B的糊料混合物与载体一起施加到基底上。 车辆烧成后,在空气中在450〜650℃的温度下烧成,然后在氮气中在800〜900℃的温度下烧结,基材上的涂层含有Ni2Al3,NiAl2B和镍以及 一个薄的B2O3覆盖层。 通过用氢氧化钠溶解除去金属间铝,硼和氧化硼后,衬底的表面含有负载在镍结构上的阮内镍。 所得电极可用作水或盐水电解池中的阴极。