Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
In a method of electrolyzing an alkali metal chloride brine comprising passing an electrical current from an anode to a cathode whereby to evolve Cl 2 at said hydroxyl ion and hydrogen at said cathode, said cathode comprising an electroconductive substrate and a porous surface comprising a major portion of nickel; the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum, and a leachable material on said substrate and leaching out said leachable material; and the cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.
Claim 2
Dependent Claim
114 words
In a method of electrolyzing an alkali metal chloride brine comprising passing an electrical current from an anode to a cathode whereby to evolve Cl 2 at said hydroxyl ion and hydrogen at said cathode, said cathode comprising an electroconductive substrate and a porous surface comprising a major portion of nickel; the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum, and a leachable material on said substrate and leaching out said leachable material; and the cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.
Claim 3
Dependent Claim
87 words
In an electrolytic cell having an anode, a cathode, and a separator therebetween, which cathode comprises a porous nickel surface on an electroconductive substrate; the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum, and a leachable material on said substrate and leaching out said leachable material; and said cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.
Claim 4
Dependent Claim
87 words
In an electrolytic cell having an anode, a cathode, and a separator therebetween, which cathode comprises a porous nickel surface on an electroconductive substrate; the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum, and a leachable material on said substrate and leaching out said leachable material; and said cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.
Claim 5
Dependent Claim
80 words
In a cathode having an electroconductive substrate and a porous surface comprising a major portion of nickel, the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum and a leachable material on said substrate and leaching out said leachable material; and said cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.
Claim 6
Dependent Claim
80 words
In a cathode having an electroconductive substrate and a porous surface comprising a major portion of nickel, the improvement wherein said porous surface consists essentially of nickel and a hydrogen overvoltage reducing amount of molybdenum; said porous surface having been prepared by depositing said nickel, said molybdenum and a leachable material on said substrate and leaching out said leachable material; and said cathode has a substantially impermeable film consisting essentially of nickel interposed between said substrate and said porous surface.