1. Department of Chemical Engineering, Khalifa University, Abu Dhabi, P.O. Box 127788, United Arab Emirates
2. Department of Mechanical Engineering, Khalifa University, Abu Dhabi, P.O. Box 127788, United Arab Emirates
3. The Surface Analysis Laboratory, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 4DL, United Kingdom
4. Department of Physics, Khalifa University, Abu Dhabi, P.O. Box 127788, United Arab Emirates
5. Center for Catalysis and Separations, Khalifa University, Abu Dhabi, P.O. Box 127788, United Arab Emirates
6. Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16 C, SE-106 91 Stockholm, Sweden
7. Centre de RMN à Très Hauts Champs UMR5082 CNRS/ENS-Lyon, Université Claude Bernard Lyon, 1 5 rue de la Doua, 69100 Villeurbanne, France
8. Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Aghia Paraskevi, Athens 15310, Attiki, Greece