Patent ID: 8142898
Filing Date: 2012-03-27
Classification: C25B,Y10T

Abstract:
1. A metal article of a valve metal substrate for use in electrocatalytic processes, said valve metal substrate having an electrocatalytic surface coating thereon, wherein said coating consists 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, and at least about 50 mole percent up to about 85 mole percent titanium, basis 100 mole percent of metal oxide content in the coating, wherein a surface morphology of said coating is characterized by minimal mudcracks, said surface morphology obtained from a water-based coating composition wherein said surface morphology of said coating provides, as measured by scanning electron microscopy, from about less than or equal to 16,000 platelets/mm 2 .