C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
117/101, 204/198
C25B 11/06 (2006.01) C25B 1/02 (2006.01) C25B 1/34 (2006.01) C25B 11/04 (2006.01)
Patent
CA 1136578
Abstract of the Disclosure Disclosed herein is a cathode having an electroconductive substrate and a porous surface. The porous surface is characterized by containing a major portion of nickel and a hydrogen overvoltage reducing amount of molybdenum. me molybdenum may be present as elemental molybdenum, as an alloy with nickel, or as a molybdenum compound. Also disclosed is an electrolytic cell having an anode, a cathode, and a separator between the anode and cathode, where the cathode is characterized by a porous surface having a major portion of nickel and a hydrogen over voltage reducing amount of molybdenum, which molybdenum may be present as elemental molybdenum, and molybdenum alloy with nickel or a molybdenum compound. Further disclosed is a method of electrolyzing an alkali metal chloride brine by passing an electrical current from an anode to a cathode to evolve chlorine at the anode and hydroxyl ion at the cathode. The cathode is characterized by a porous surface containing a major portion of nickel and hydrogen overvoltage reducing amount of molybdenum. Also disclosed is a method of preparing a porous nickel electrode by flame spraying nickel bearing particles, leachable constituent bearing particles and molybdenum bearing particles onto a metal substrate and leaching out the leachable constituent whereby to form the porous surface.
343357
Snodgrass John O.
Welch Cletus N.
Borden Ladner Gervais Llp
Ppg Industries Inc.
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