Abstract
A series of Cu/MoO3 catalysts with different Mn contents were prepared by precipitation method. To probe the promotion role of Mn, Cu/MoO3 catalysts were doped with 0.2, 0.5, 0.8 and 1 wt% of Mn. Different analytical techniques like Inductively coupled plasma - optical emission spectrometry (ICP-OES), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Nitrogen adsorption desorption technique (Brunauer–Emmett–Teller BET), X-ray Photoelectron Spectroscopy (XPS), and Field Emission Scanning Electron Microscope (FESEM) were utilized to gauge physicochemical profile of Mn promoted Cu/MoO3 catalysts. Activity studies of the catalysts for CO2 hydrogenation to methanol were executed in three-phase slurry batch reactor. The comparative data of activity studies showed that rate of methanol synthesis was comparable with the recorded data in the literature for the title reaction.
•The enclosed article deals with the catalytic hydrogenation of CO2 to green methanol in liquid phase slurry reactor. A Mn promoted molybdenum based Cu nano-catalysts has been used for CO2 hydrogenation to methanol.•Molybdenum oxide has been tested with Mn promotion for green methanol synthesis by CO2 reduction.•Methanol yield has been investigated in slurry reactor at 30 bars and 230 °C reaction pressure and temperature respectively.