Effect of a carrier’s nature on the activation of supported iron catalysts
The effect a carrier’s nature has on the activation of supported iron catalysts in a stream of pure carbon monoxide CO is investigated. It is shown that iron is mainly present in the form of magnetite Fe3O4 in case of carbon supports and in the form of hematite Fe2O3 for silica gel supports. It is shown that all activated samples are chiefly made up of the Hägg carbide χ-Fe5C2, but its concentration is higher for the carbon supports.
Keywordsiron oxide nanoparticles catalyst carbides Fischer–Tropsch synthesis
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