An apparatus for separating exhaust particulates from an exhaust gas stream, includes a ceramic honeycomb body with ducts through which exhaust gas can flow and which extend in the longitudinal direction of the honeycomb body, with the honeycomb body being provided with electrodes for generating an electric field which are each oriented transversally to the axis of the ducts. The electrodes are each formed by a group of ducts in which an electric conductor is introduced at least partly along their axial extension. It preferably includes a metallic coating.