| 摘要 |
PURPOSE:To drop the hydrogen overvoltage of a cathode, by using granules of an alloy contg. Ni and/or Co as a primary component and secondary and tertiary components in a prescribed ratio as the cathode and by sticking the granules on an ion exchange membrane. CONSTITUTION:Ni and/or Co as a component X is mixed with Al, Zn, Mg or Si as a component Y and a noble metal or Re as a component Z, and the mixture is melted to obtain an alloy consisting of the components X, Y, Z within the range bounded by points A, B, C, D in the diagram. Granules of the alloy having electrode activity are used as a cathode, and they are stuck on an ion exchange membrane. Thus, the hydrogen overvoltage of the cathode is dropped. |
