1. Flemish Institute for Technological Research (Vito N.V.), Boeretang 200, 2400 Mol, Belgium
2. Department of Materials and Chemistry, Physical Chemistry and Polymer Science, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
3. Laboratory of Sustainable and Catalytic Processing, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL, 1015 Lausanne, Switzerland
4. Department of Chemistry, University of Lubumbashi, 1825 Lubumbashi, D. R. Congo
5. Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium