1. Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
2. Institute of Nanotechnology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
3. School of Chemistry, Cardiff University, Main Building Park Place, Cardiff CF10 3AT, United Kingdom
4. National Graphene Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
5. Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom