1. Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 36 Bratislava, Slovakia
2. Centre of Excellence for Advanced Materials Application-CEMEA, Slovak Academy of Sciences, Dúbravská cesta 5807/9, 845 11 Bratislava, Slovakia
3. Department of Inorganic Technology, Faculty of Chemical and Food Technology (STU), Radlinského 9, 812 37 Bratislava, Slovakia