Apparatus to control reverse current flow in membrane electrolytic cells
    2.
    发明授权
    Apparatus to control reverse current flow in membrane electrolytic cells 失效
    控制膜电解槽中逆流的装置

    公开(公告)号:US5112464A

    公开(公告)日:1992-05-12

    申请号:US539111

    申请日:1990-06-15

    IPC分类号: C25B15/00 C25B15/08

    CPC分类号: C25B15/08 C25B15/00

    摘要: Methods are disclosed to control reverse current flow in stacks of membrane electrolytic cells during off-line periods. One method includes the introduction of a stripping gas flow to the anolyte solution of the cells during an interruption of normal positive current flow. In another embodiment, reverse current flow is controlled by introducing at least one soluble reducing agent to the anolyte solution during an interruption of normal positive current flow. Also disclosed is a porous sparging apparatus useful in introducing a stripping gas flow to a stack of membrane electrolytic cells.

    摘要翻译: 公开了在离线期间控制膜电解池堆叠中的反向电流的方法。 一种方法包括在正常正电流中断期间将汽提气流引入电池的阳极电解液。 在另一个实施方案中,通过在正常正电流中断期间将至少一种可溶还原剂引入阳极电解液来控制反向电流。 还公开了一种用于将剥离气体流引入到膜电解池的堆叠中的多孔喷射装置。

    Durable electrode coatings
    4.
    发明授权
    Durable electrode coatings 失效
    耐用电极涂层

    公开(公告)号:US5882723A

    公开(公告)日:1999-03-16

    申请号:US781497

    申请日:1997-01-13

    申请人: Yu-Min Tsou

    发明人: Yu-Min Tsou

    摘要: Durable electrolytic cell electrodes having low hydrogen overpotential and performance stability. A highly porous electrocatalytic primary phase and an outer, secondary phase reinforcement coating are provided on an electrically conducting transition metal substrate to make the electrodes. Durability is achieved by the application of the outer secondary phase to protect the primary phase electrocatalytically active coating. A process is also disclosed for catalizing a substrate surface to promote electroless deposition of a metal.

    摘要翻译: 具有低氢超电势和性能稳定性的耐用电解池电极。 在导电过渡金属基板上提供高度多孔的电催化主相和外部次级相增强涂层以制造电极。 通过施加外部第二相以保护主相电催化活性涂层来实现耐久性。 还公开了一种用于催化底物表面以促进金属的无电沉积的方法。