1. Laboratory for Advanced Carbon Nanomaterials, Chemical Institute, Kazan Federal University, Kremlyovskaya Str. 18, Kazan, Russian Federation 420008
2. Department of Inorganic Chemistry, Chemical Institute, Kazan Federal University, Kremlyovskaya Str. 18, Kazan, Russian Federation 420008
3. Institute of Physics, Kazan Federal University, Kremlyovskaya Str. 18, Kazan, Russian Federation 420008