1. Centre for Research in Ceramics and Composite Materials (CICECO), Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
2. Departamento de Física Aplicada, Facultade de Ciencias, Universidade de Vigo, E36310 Vigo, Spain
3. Laboratory of Separation and Reaction Engineering (LSRE), Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal