Fischer Tropsch synthesis: Deuterium isotopic study for the formation of oxygenates over CeO2 supported Pt-Co catalysts

► CeO2 supported Pt-Co catalyst exhibited higher selectivity to oxygenates. ► The hydrogenation of CO involved in the rate determining step. ► Deuterium suppress the rate of oxygenates formation. ► Common FT intermediates are involved in the formation of hydrocarbons and oxygenates.