In 1924 Kobozev graduated from the Physics and Mathematics Department of Moscow State University (MSU). The same year he entered the post-graduate studies at the Scientific Research Institute of Chemistry under mentorship of professor Evgeny Shpitalsky. Since 1929 he was a lecturer at the Physical Chemistry Department of MSU. In 1935 he started to organize the laboratory of inorganic catalysis at Moscow State University. The same year he received the doctoral degree in chemical studies, the rank of professor and became an active member of MSUs Institute of Chemistry, without dissertation defense. Between 1925 and 1935 he promoted advanced scientific ideas at conferences, organized a special catalysis workshop at MSUs Physical Chemistry Department, and a catalysis sector at the State Institute of Nitrogen, attracting many students.