Method for using anodes having NICO/sub 2/O/sub 4/ catalyst for the electrolysis of potassium hydroxide solutions and method of making an anode containing NICO/sub 2/O/sub 4/ catalyst

Patent · Tue Apr 29 00:00:00 EDT 1986

OSTI ID:5778419

Martin, R E; Plasse, P A

A method is described of electrolyzing water to produce oxygen and hydrogen in an electrochemical system in cells that contain aqueous potassium hydroxide electrolyte, an anode and a cathode. The method consists of: (a) maintaining aqueous electrolyte in contact with the cathode and the anode; (b) maintaining a supply of water at the cathode; (c) maintaining a supply of hydroxyl ions at the anode; and (d) passing a direct electric current through the system causing reduction of the water to hydrogen at the cathode and oxidation of the hydroxyl ion to oxygen at the anode; wherein the improvement comprises utilizing as the anode a NiCo/sub 2/O/sub 4/ catalyzed electrically conductive substrate made by soaking the substrate in a solution of nickel nitrate hexahydrate and cobalt II nitrate hexahydrate and then sintering the impregnated substrate the electrolysis requiring an anode voltage of less than about 1470 millivolts at 100 milliamperes per square centimeter of anode area.

• Assignee: International Fuel Cells Corp., South Windsor, CT
• Patent Number(s): US 4585532
• OSTI ID: 5778419
• Resource Relation: Patent File Date: Filed date 26 Apr 1985
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
25 ENERGY STORAGE
ELECTROCATALYSTS
CHEMICAL PREPARATION
ELECTROCHEMICAL CELLS
ANODES
HYDROGEN PRODUCTION
ELECTROLYSIS
CATHODES
COBALT COMPLEXES
DIRECT CURRENT
ELECTROLYTES
NICKEL CARBONATES
NICKEL NITRATES
NICKEL OXIDES
OXIDATION
OXYGEN
POTASSIUM HYDROXIDES
SUBSTRATES
WATER
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
CURRENTS
ELECTRIC CURRENTS
ELECTRODES
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
LYSIS
NICKEL COMPOUNDS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
080101* - Hydrogen- Production- Electrolysis
250903 - Energy Storage- Batteries- Materials
Components
& Auxiliaries