Patent ID: 6682774
Filing Date: 2004-01-27
Classification: B01J,C23C,Y02A

Abstract:
A method of forming a catalytically active surface on a substrate for treatment of atmospheric pollution comprising the steps of:a) providing a particle mixture comprising a catalytic metal; b) entraining the particle mixture into a flow of a gas, the gas at a temperature insufficient to cause thermal softening of the particle mixture; and c) kinetically spraying the particle mixture entrained in the flow of gas through a supersonic nozzle placed opposite a substrate and accelerating the particle mixture to a velocity sufficient to result in adherence of the particle mixture onto the substrate, the catalytic metal of the adhered particle mixture forming a catalytically active surface capable of catalyzing the conversion of at least one of ozone, hydrocarbons, or carbon monoxide to oxygen, water and carbon dioxide, and carbon dioxide, respectively.