Raney nickel-hydrogen evolution cathode

Patent · Tue Aug 30 04:00:00 EDT 1983

OSTI ID:5455640

Gray, T J

An improved hydrogen evolution cathode is disclosed with a conductive metal core and an integral Raney-type catalytic surface predominantly derived from an adherent ternary aluminide Beta structure intermetallic crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum added to give a percursor alloy having the formula Ni /SUB x/ Mo /SUB y/ Al/sub 3/ where x is within the range of from about 80 to about 95 weight percent and y is within the range of from about 5 to about 20 weight percent of the Ni-Mo portion of the alloy. Disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Mo core or substrate having about 5-20 weight percentage of Mo and coating it with aluminum, heat treating to form a Ni-Mo-Al ternary alloy with mostly NiAl/sub 3/ (ordered orthorhombic) crystal structure and then leaching out the Al to produce a binary NiMo alloy Raney surface. A method for utilizing said low overvoltage cathode for producing hydrogen and an exemplary cell for so doing are also disclosed.

• Assignee: Olin Corp.
• Patent Number(s): US 4401529
• OSTI ID: 5455640
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080101 -- Hydrogen-- Production-- Electrolysis
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALLOYS
ALUMINIUM ALLOYS
CATHODES
CHEMICAL COMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYSIS
ELECTROLYTIC CELLS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
LYSIS
METAL-GAS BATTERIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NICKEL-HYDROGEN BATTERIES
OXYGEN COMPOUNDS
WATER