Catalytic coating synthesized onto cordierite monolith walls. Its application to diesel soot combustion

► The catalytic coating on cordierite monolith exhibits excellent mechanical adherence. ► The thin ZrO2 layer and the macropores of the monolith allow soot filtration. ► Co, Ba and K were deposited on the surface and inside of the cordierite walls. ► The developed catalyst is a potential candidate for a continuous regeneration filter.