Hydrogen evolution cathode

Patent · Tue Jan 10 04:00:00 EST 1984

OSTI ID:7078293

Gray, T J

An improved hydrogen evolution cathode with a conductive metal core and an integral Raney-type catalytic surface predominantly derived from an adherent ternary aluminide Beta structured intermetallic crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum and titanium added to give a precursor alloy having the formula Ni /SUB x/ Mo /SUB y/ Ti /SUB z/ Al/sub 3/ where x is within the range of from about 75 to about 94 weight percent, y is within the range of from about 5 to about 20 weight percent and z is within the range of from about 1 to about 5 weight percent of the Ni-Mo-Ti portion of the alloy. Also disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Mo-Ti core or substrate having about 5-20 weight percentage of Mo and about 1-5 weight percent Ti and coating it with aluminum, heat treating to form a Ni-Mo-Ti-Al quaternary alloy with mostly NiAl/sub 3/ (ordered orthorhombic) crystal structure and then leaching out the Al to produce a ternary NiMoTi 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 4425203
• OSTI ID: 7078293
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080101* -- Hydrogen-- Production-- Electrolysis
ALLOYS
ALUMINIUM COMPOUNDS
CATHODES
CHEMICAL COMPOSITION
COATINGS
DESIGN
ELECTRODES
ELECTROLYSIS
HYDROGEN PRODUCTION
LYSIS
MANUFACTURING
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
SURFACES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS