Method of making a porous nickel electrode for alkaline electrolysis
processes and resulting product
    41.
    发明授权
    Method of making a porous nickel electrode for alkaline electrolysis processes and resulting product 失效
    制造用于碱性电解方法的多孔镍电极的方法和所得产物

    公开(公告)号:US4300993A

    公开(公告)日:1981-11-17

    申请号:US134756

    申请日:1980-03-28

    CPC分类号: C25B11/0447

    摘要: On a sheet steel carrier a suspension containing a binder and nickel powderr a powder containing a nickel alloy in a volatile suspension medium is applied, with or without an additional pore-forming material, and the sintered to produce a porous sintered layer. Alternatively, this sintered layer can be obtained by depositing and consolidating the powdered mixture on the carrier with the aid of a plasma gun. A nickel/zinc alloy is then precipitated electrolytically on the sintered material thus produced and, finally, the zinc is dissolved out by dipping in lye. The carrier may be of metal and particularly a wire lattice of nickel or iron. It may also be a solid electrolyte membrane, such as a disc of .beta.-Al.sub.2 O.sub.3.

    摘要翻译: 在钢板载体上,使用含有粘合剂和镍粉末的悬浮液或者在挥发性悬浮介质中含有镍合金的粉末,在有或没有另外的成孔材料的情况下进行烧结,制成多孔烧结层。 或者,该烧结层可以通过借助等离子体枪沉积和固结载体上的粉末状混合物来获得。 然后将镍/锌合金电解沉淀在由此产生的烧结材料上,最后通过浸入碱液中将锌溶解出来。 载体可以是金属,特别是镍或铁的丝网。 它也可以是固体电解质膜,例如β-Al2O3盘。

    Cathode and cell for lowering hydrogen overvoltage in a chlor-akali cell
    42.
    发明授权
    Cathode and cell for lowering hydrogen overvoltage in a chlor-akali cell 失效
    用于降低氯碱电池中氢过电压的阴极和电池

    公开(公告)号:US4298447A

    公开(公告)日:1981-11-03

    申请号:US128111

    申请日:1980-03-07

    申请人: Terry M. Copeland

    发明人: Terry M. Copeland

    IPC分类号: C25B11/06 C25B1/46 C25B11/04

    CPC分类号: C25B11/0447 C25B1/46

    摘要: The invention comprises an improved cathode for a chloralkali cell having grains of alpha-iron adherent to the surface of the cathode, and a process for making the cathode which comprises depositing grains of alpha-iron onto the surface of an electrically conductive cathode substrate in an electrical cell. The invention also provides a method for lowering the operating voltage of a chloralkali electrolysis cell which comprises adding iron particles to the cathode compartment of the cell.

    摘要翻译: 本发明包括一种具有粘附于阴极表面的α-铁结晶的氯碱槽的改进的阴极,以及一种用于制造阴极的方法,该方法包括将α-铁颗粒沉积在导电阴极衬底的表面上 电池。 本发明还提供了一种降低氯碱电解槽的工作电压的方法,该方法包括将铁颗粒加入电池的阴极室。

    Porous nickel coated electrodes
    43.
    发明授权
    Porous nickel coated electrodes 失效
    多孔镀镍电极

    公开(公告)号:US4251344A

    公开(公告)日:1981-02-17

    申请号:US114242

    申请日:1980-01-22

    CPC分类号: H01M4/98 C25B11/0447

    摘要: 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.

    摘要翻译: 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。

    Cathode for electrolytic process involving hydrogen generation
    44.
    发明授权
    Cathode for electrolytic process involving hydrogen generation 失效
    涉及氢生成的电解工艺的阴极

    公开(公告)号:US4098671A

    公开(公告)日:1978-07-04

    申请号:US788499

    申请日:1977-04-18

    摘要: A novel cathode is provided which comprises a porous titanium sheet having a cathodic exposed surface of hydrided titanium, preferably where the core of the sheet is of less porosity or higher density than the surface. The hydrided surface of the cathode may include a coating of silver thereon and therein within the pores, or the hydrided surface of the cathode, either as such or one provided with the silver coating may further include a coating of MoS.sub.2 thereon and therein within the pores. Such cathode can be either a monopolar or a bipolar electrode. The core of the cathode is of low porosity to provide improved current transfer and has a surface area of large pore size to enable low cathodic overvoltage.

    摘要翻译: 提供了一种新颖的阴极,其包括具有氢化钛的阴极暴露表面的多孔钛片,优选地,片材的芯部具有比表面更小的孔隙率或更高的密度。 阴极的水合表面可以包括在其上的银和其内部的阴极涂层,或阴极的水合表面,或者与银涂层一起提供的涂层可以进一步包括其上和其内的MoS 2的涂层 。 这种阴极可以是单极或双极电极。 阴极的核心是低孔隙率,以提供改善的电流传递,并且具有大孔径的表面积以实现低阴极过电压。

    Sprayed cathodes
    45.
    发明授权
    Sprayed cathodes 失效
    喷阴极

    公开(公告)号:US4049841A

    公开(公告)日:1977-09-20

    申请号:US611030

    申请日:1975-09-08

    摘要: A ferrous metal cathode used in a chlor-alkali electrolytic cell has a metallic coating deposited thereon. The metallic coating is applied by either flame spraying or plasma spraying a powdered metal onto the ferrous metal surface. The metals which are utilized are those having a lower hydrogen overvoltage than iron.

    摘要翻译: 用于氯碱电解池的黑色金属阴极上沉积有金属涂层。 通过火焰喷涂或将粉末状金属等离子体喷涂到黑色金属表面上来施加金属涂层。 使用的金属是具有比铁低的氢过电压的金属。

    Electrode having platinum metal oxide coating thereon,and method of use thereof
    47.
    发明授权
    Electrode having platinum metal oxide coating thereon,and method of use thereof 失效
    具有铂金属氧化物涂层的电极及其使用方法

    公开(公告)号:US3711385A

    公开(公告)日:1973-01-16

    申请号:US3711385D

    申请日:1970-09-25

    申请人: CHEMNOR CORP

    发明人: BEER H

    IPC分类号: C25B11/04 C25B11/10 B01K3/00

    摘要: AN ELECTRODE FOR USE IN AN ELECTROLYTIC PROCESS. THE ELECTRODE HAS A CORE OF A FILM-FORMING METAL AND A LAYER HAVING AT LEAST THE OUTSIDE PORTION OF THE THICKNESS THEREOF OF AN ELECTTOLYTE RESISTANT AND ELECTROLYSIS PRODUCT RESISTANT MATERIAL, WHICH OUTSIDE PORTION HAS A THICKNESS OF AT LEAST ABOUT 0.054 MICRON. THE LAYER IS ON AT LEAST PART OF THE SURFACE OF SAID CORE. THE MATERIAL OF THE PORTION CONSISTS ESSENTIALLY OF AT LEAST ONE OXIDE WHICH IS AN OXIDE OF AT LEAST ONE PLATINUM METAL TAKEN FROM THE GROUP CONSISTING OF PLATINUM, IRIDIUM, RHODIUM, PALLADIUM, RUTHENIUM, AND OSMIUM. THE ELECTRODE IS ESPECIALLY USEFUL IN ELECTROLYSIS OF BRINE TO OBTAIN CHLORINE.

    摘要翻译: 制造用于电解工艺的电极的方法。 该电极具有成膜金属的芯和至少具有厚度的至少一部分厚度的电解质和电解产品的材料的层,该材料至少包含作为电解的有效材料 取自铂,铱,铑,钯,钌和锇的至少一种铂金属的一种氧化物。 该方法包括在芯上形成铂金属,然后氧化,形成氧化物,然后将其施加到芯上,或直接在芯上形成氧化物,例如通过加热金属盐或电解液 。