Method of catalytically coating low porosity ceramic surfaces

摘要

A method is disclosed for coating non-porous or low porosity ceramic surfaces with a catalytically active film comprising a platinum group metal and a minor amount of a refractory metal oxide. The method comprises applying a thermally decomposable compound of a precious metal and a compound decomposable into a refractory metal oxide to a ceramic surface and decomposiing said compounds in the presence of air.