Effect of the Temperature of Preliminary Treatment on the Structural Characteristics of Highly Porous Iron-Containing Metal–Carbon Nanocomposites during Their Production
M. N. Efimov, A. A. Vasilev, D. G. Muratov, N. A. Zhilyaeva, E. L. Dzidziguri, G. P. Karpacheva
Российский журнал физической химии А
https://doi.org/10.1134/S0036024421010064
An approach to the synthesis of metal-carbon nanocomposites, comprising iron-containing nanoparticles distributed in a highly porous carbon support based on pyrolyzed polyacrylonitrile, has been developed. It is shown that metal nanoparticles form in situ during pyrolysis of the polymer and the formation of a porous carbon matrix. Features of the formation of iron-containing particles are investigated, depending on the temperature of preliminary treatment (200, 500, and 800°C) and on the final temperature of synthesis, which varied from 500 to 900°C. The change in the specific surface area of the carbon support is shown, depending on the conditions of preparation. The formation of phases α-Fe, γ-Fe, and KFeO2 is observed in addition to that of iron carbide nanoparticles.
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991, Moscow, RussiaM. N. Efimov, A. A. Vasilev, D. G. Muratov, N. A. Zhilyaeva & G. P. Karpacheva
- National University of Science and Techology (MISiS), 119049, Moscow, RussiaE. L. Dzidziguri
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