Coating processes – Electrical product produced – Metal coating
Patent
1980-01-31
1982-04-06
Beck, Shrive P.
Coating processes
Electrical product produced
Metal coating
427271, 427273, 427423, 252477Q, 204290R, 427336, B05D 108, B05D 512
Patent
active
043235956
ABSTRACT:
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. The 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.
REFERENCES:
patent: 3674710 (1972-07-01), Richter et al.
patent: 4024044 (1977-05-01), Brannan et al.
patent: 4033837 (1977-07-01), Kuo et al.
patent: 4049580 (1977-09-01), Oden et al.
patent: 4049841 (1977-09-01), Coker et al.
patent: 4080278 (1978-03-01), Ravier et al.
patent: 4153578 (1979-05-01), DeThomas
patent: 4251478 (1981-02-01), Welch et al.
Snodgrass John O.
Welch Cletus N.
Beck Shrive P.
Goldman Richard M.
PPG Industries Inc.
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