1. Department
of Energy Conversion and Storage, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
2. Center
for Atomic-scale Materials Design, Technical University of Denmark, Fysikvej 311, DK-2800 Kgs. Lyngby, Denmark
3. Amminex Emissions
Technology A/S, Gladsaxevej 363, DK-2860 Søborg, Denmark