1. Center for Hybrid Nanostructures, Universität Hamburg, 22761 Hamburg, Germany
2. Hamburg University of Technology (TUHH), Institute of Advanced Ceramics, Integrated Materials Systems Group, Denickestraße 15, 21073 Hamburg, Germany
3. Federal University of Santa Catarina (UFSC), Department of Chemical and Food Engineering (EQA), 88040-970 Florianópolis, SC, Brazil