The CoO-MoO3/gamma-Al2O3 catalyst : VIII. Analysis of sulfided Co- and Mo-containing catalysts by in situ reflectance spectroscopy

M.J.M. vd Aalst, V.H.J. Beer, de

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Abstract

Ultraviolet and visible reflectance spectra were recorded in situ for oxidic and sulfided Moand/or Co-containing catalysts supported on alumina and silica. In addition, reflectance spectra of certain selected Mo and Co oxides and sulfides have been included for reference purposes. The results show the formation of MoS2 and Co9S8 in supported systems as a result of sulfidation in H2S/H2. The effect of oxygen chemisorption on sulfided CoO---MoO3/¿-Al2O3 and the effect of Co introduction on the MoS2 phase are discussed.
Original languageEnglish
Pages (from-to)247-253
Number of pages7
JournalJournal of Catalysis
Volume49
Issue number3
DOIs
Publication statusPublished - 1977

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