Patent ID: 7632535
Filing Date: 2009-12-15
Classification: C25B,Y10T

Abstract:
1. A process for the production of an electrolytic electrode having an electrocatalytic coating thereon, said electrocatalytic coating having a surface morphology adapted for enhanced electrode efficiency, said process comprising the steps of: providing a valve metal electrode base; coating said valve metal electrode base with a coating layer of an electrochemically active coating on said valve metal electrode base, said coating consisting of a mixture of ruthenium oxide, titanium oxide and one or more of tin oxides or antimony oxides, said mixture providing from at least about 10 mole percent up to about 30 mole percent ruthenium oxide, and at least about 50 mole percent up to about 85 mole percent titanium oxide, basis 100 mole percent of the metal oxide content in the coating, wherein said surface morphology of said coating is characterized by minimal mudcracks, and wherein said electrolytic electrode produces less than about 2.0% oxygen in a chlorate electrolyte.