1. Comenius University Bratislava, Faculty of Natural Sciences, Department of Inorganic Chemistry, Ilkovicova 6, Mlynska Dolina, 84215 Bratislava, Slovakia
2. Materials Chemistry Group, Department of Chemistry, University of Delhi, 110007 Delhi, India
3. Comenius University Bratislava, Faculty of Mathematics Physics and Informatics, Centre for Nanotechnology and Advanced Materials, Mlynska Dolina, 84248 Bratislava, Slovakia
4. VSB – Technical University of Ostrava, Centre of Energy and Environmental Technologies, Institute of Environmental Technology, 17. listopadu 2172/15, 70800 Ostrava-Poruba, Czech Republic