%0 Journal Article
%A Osman, AI
%A Abu-Dahrieh, JK
%A Cherkasov, N
%A Fernandez-Garcia, J
%A Walker, D
%A Walton, RI
%A Rooney, DW
%A Rebrov, E
%D 2018
%F discovery:10113325
%I Elsevier BV
%J Molecular Catalysis
%K Water gas shift reaction, Molybdenum carbide, Platinum, Alumina, Syngas
%P 38-47
%T A highly active and synergistic Pt/Mo₂C/Al₂O₃ catalyst for water-gas shift reaction
%U https://discovery.ucl.ac.uk/id/eprint/10113325/
%V 455
%X Catalysts consisting of Pt and Cu supported on Mo2C/η-Al2O3, Mo2C/γ-Al2O3 or Mo2C were prepared and used for the low-temperature water gas shift reaction (WGSR). The catalysts were characterized by elemental analysis, powder X-ray diffraction (XRD), temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The catalysts were studied in water gas shift reaction with a reaction mixture containing 11% CO, 43% H2, 6% CO2, 21% H2O (real feed composition mixture from the reformer) and balance He, with a reaction temperature range of 180–300 °C at a space velocity (SV) of 125,000 h−1. Catalyst supports (η-Al2O3 and γ-Al2O3), led to different synergetic effect between the two most active phases of Pt metal and Mo2C. Pt/Mo2C/η-Al2O3 is a promising catalyst (44% conversion at 180 °C) due to the close interaction between Pt and Mo2C phases on the surface of the catalyst. The 4 wt% Pt-Mo2C showed the highest activity where the temperature at which 50% conversion observed was at only 180 °C with SV of 125,000 h−1 and constant stability over 85 h.
%Z This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.