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O₂-assisted Water Gas Shift reaction over structured Au and Pt catalyst

ICMS

M. González-Castaño, T. R. Reina, S. Ivanova, L.M. Martínez Tejada, M.A. Centeno, J.A. Odriozola Applied Catalysis B: Environmental 2016, Vol. 185, 337-343 DOI: http://dx.doi.org/10.1016/j.apcatb.2015.12.032

Platinum and gold structured catalysts were compared as active phases in classical and O₂-assisted WaterGas Shift (WGS) reaction. Both metals were supported on iron-doped ceria mixed oxide and then, struc-tured on metallic micromonolithic devices. As expected the WGS activity of both micromonoliths isconditioned by the nature of the noble metals being Pt the most active metal in traditional conditions.However, the addition of oxygen to the classical water gas feed turns the balance in favor of the goldbased catalysts, being the presence of gold responsible for an excessive improvement of the catalyticactivity.