Abstract
Nanosized iron(III) oxide with an average particle size of 8–10 nm has been synthesized by the thermolysis of iron(III) acetylacetonate using diphenyl ether as a dispersion medium. Reduction processes in a hydrogen atmosphere in the presence of nanosized iron oxide and natural mineral hematite (Fe2O3) have been studied by the temperature-programmed reduction method. The activation energies of the reduction processes have been determined by the Kissinger method; it has been shown that, in the case of nano-Fe2O3, the activation energies are several times higher than the respective values observed for hematite. The adsorption properties of nano-Fe2O3 and hematite have been studied; the isosteric heats of chemisorption of hydrogen and carbon monoxide on the surface of these samples have been determined.
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Original Russian Text © A.S. Lyadov, A.A. Kochubeev, E.B. Markova, O.P. Parenago, S.N. Khadzhiev, 2016, published in Nanogeterogennyi Kataliz, 2016, Vol. 1, No. 2, pp. 129–135.
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Lyadov, A.S., Kochubeev, A.A., Markova, E.B. et al. Features of reduction and chemisorption properties of nanosized iron(III) oxide. Pet. Chem. 56, 1134–1139 (2016). https://doi.org/10.1134/S0965544116120094
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DOI: https://doi.org/10.1134/S0965544116120094