In situ57Fe Mössbauer spectra are reported for the first-, higher-stage ferric chloride, and a mixed ferric chloride-potassium chloride intercalated graphite catalysts under reduction and Fischer-Tropsch reaction conditions. The mass spectroscopic measurements reveal a different catalytic selectivity for the three catalysts. The first two catalysts predominantly possess a higher selectivity for methane, whereas the third catalyst has higher selectivity for the formation of propane. The differences are attributed to geometrical effects in the catalytic sites of the intercalated compounds.
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Vaishnava, P.P., Montano, P.A. 57Fe Mössbauer Spectroscopic Study of the Geometrical Effects in the Catalytic Reactions with Intercalation Compounds. MRS Online Proceedings Library 20, 397 (1982). https://doi.org/10.1557/PROC-20-397