* Corresponding authors

^a AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
E-mail: khnida@agh.edu.pl, katarzyna.hnida@gmail.com
Tel: +48 12 617 52 82

^b University of Hamburg, Multifunctional Nanostructures, Institute of Nanostructure and Solid State Physics, Jungiusstrasse 11, 20-355 Hamburg, Germany

^c AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, 30-059 Krakow, Poland

^d Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland

^e Leibniz Institute for Solid State and Materials Research Dresden, PO Box 270116, 01171 Dresden, Germany

^f AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland

^g Jagiellonian University in Krakow, Department of Physical Chemistry and Electrochemistry, Ingardena 3, 30-060 Krakow, Poland