Highly stable Fe/CeO catalyst for the reverse water gas shift reaction in the presence of HS.

This study focused on evaluating the catalytic properties for the reverse water gas shift reaction (RWGS: CO + H → CO + HO Δ = 42.1 kJ mol) in the presence of hydrogen sulfide (HS) over a Fe/CeO catalyst, commercial Cu-Zn catalyst for the WGS reaction (MDC-7), and Co-Mo catalyst for hydrocarbon desulfurization. The Fe/CeO catalyst exhibited a relatively high catalytic activity to RWGS, compared to the commercial MDC-7 and Co-Mo catalysts.