Umicore Ag & Co Kg

Nicola Söger

Thomas Kreuzer

Marcus Pfeifer

Gerald Jeske

Paul Spurk

Katja Adelmann

Michael Seyler

Anke Schuler

Thomas R Pauly

Wolfgang Schneider

Markus Kögel

Ralf Sesselmann

Lothar Muβmann

Elena Müller

Stephan Dipl-Ing Malmberg

Structured automotive catalysts which comprise a plurality of different catalytically active coatings arranged above one another on a support body and whose coatings contain transition metals and porous support materials are well known. Structured automotive catalysts of this type which do not belong to the group of three-way catalysts, in particular, frequently display large selectivity losses after thermal aging processes which can be attributed to the thermally induced migration of transition metal atoms from one layer into the neighboring coating. The introduction of a diffusion barrier which slows or prevents the thermally induced migration of transition metal atoms from one catalytically active layer into the other increases the thermal aging stability of such catalysts significantly.

Structured automotive catalyst with improved thermal ageing stability

Growing community of inventors

Frankfurt am Main, Germany

Nicola Söger