Marja Kärkkäinen defended her doctoral thesis at the University of Oulu on December 8th, 2017. Her thesis topic was "Deactivation of oxidation catalysts by sulphur and phosphorus in diesel and gas driven
vehicles". Her Opponent was Professor Lars J. Petterson and Custodian Professor Riitta Keiski.
For more information and dissertation visit: http://www.oulu.fi/yliopisto/node/49561
Last updated: 22.11.2018