TY  - JOUR
EP  - 47
Y1  - 2018/08//
AV  - public
VL  - 455
SP  - 38
TI  - A highly active and synergistic Pt/Mo?C/Al?O? catalyst for water-gas shift reaction
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
PB  - Elsevier BV
UR  - https://doi.org/10.1016/j.mcat.2018.05.025
ID  - discovery10113325
N2  - Catalysts consisting of Pt and Cu supported on Mo2C/?-Al2O3, Mo2C/?-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 (?-Al2O3 and ?-Al2O3), led to different synergetic effect between the two most active phases of Pt metal and Mo2C. Pt/Mo2C/?-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.
KW  - Water gas shift reaction
KW  -  Molybdenum carbide
KW  -  Platinum
KW  -  Alumina
KW  -  Syngas
A1  - Osman, AI
A1  - Abu-Dahrieh, JK
A1  - Cherkasov, N
A1  - Fernandez-Garcia, J
A1  - Walker, D
A1  - Walton, RI
A1  - Rooney, DW
A1  - Rebrov, E
JF  - Molecular Catalysis
ER  -