D. G. Yakubik
Kemerovo State University
Russian Federation

Denis G. Yakubik – Candidate of Chemistry, Assistant Professor at the Department of Solid State Chemistry

A. N. Voropay
Institute of Coal Chemistry and Material Science of the Siberian Branch of the RAS
Russian Federation

Aleksander N. Voropay – post-graduate student 

T. S. Manina
Institute of Coal Chemistry and Material Science of the Siberian Branch of the RAS
Russian Federation

Tatiana S. Manina – post-graduate student at the Laboratory of Catalysis in Coal Chemistry

V. G. Dodonov
Kemerovo State University
Russian Federation

Vadim G. Dodonov – Candidate of Physics and Mathematics, Senior Research Associate at the Department of Chemistry of Solids