Effect of the Conditions of Thermal Decomposition of Cobalt Azide in the Pores of Carbon Matrix on the Phase Composition of the Products
A. N. VOROPAY1,2, N. M. FEDOROVA2, YU. A. ZAKHAROV1,2, V. M. PUGACHEV2, V. G. DODONOV2, YU. V. SUROVIKIN3, A. V. IVANOV2
1Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
2Kemerovo State University, Ul. Krasnaya 6, Kemerovo 650043 (Russia)
3Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
Keywords: кобальт, оксиды кобальта, азид кобальта, пористый углерод, наноструктурированные композиты, cobalt, cobalt oxides, cobalt azide, porous carbon, nanostructured composites
Abstract
Effect of the nature of decomposition of the particles of cobalt azide deposited in the pores of carbon matrix on the phase composition and particle size characteristics of the products is considered. Porous carbon material of Sibunit type, of TU-145 grade (pore diameter 10-15 nm) was used as the matrix. The studies were carried out by means of X-ray diffraction, X-ray fluorescence analysis, complexometry, and thermogravimetry. It was established that mainly the Co3O4 phase is formed as a result of the slow decomposition of cobalt azide nanoparticles, while the product of explosive decomposition contains the metal phase and CoO.
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