Filter for purifying gas mixtures and method for its manufacture

摘要

A filter for purifying gas mixtures containing particulates, in particular exhaust gases of internal combustion engines containing soot. The filter has a porous wall made of a filter base material through which the gas mixture to be purified flows. A surface coating of ceramic fibers is applied to the surface of the wall which is exposed to the flow of the gas mixture to be purified. The ceramic fibers are coated with nanoparticles. Furthermore, a method for manufacturing such a filter.