Hydrogen production from oxidative steam reforming of methanol over Au/CeO2-Fe2O3 catalysts

Abstract

Oxidative steam reforming of methanol (OSRM) over a Fu/CeO2-Fe2O3 catalyst prepared by a deposition-precipitation (DP) method was investigated to produce hydrogen for proton exchange membrane fuel cell (PEMFC) applications. The supports (CeO2, Fe2O3, and CeO2-Fe2-O3) were prepared by precipitation and co-precipitation methods. The 3%Au/CF(0.25) exhibited the highest activity under optimum conditions of temperatures from 200 C to 400 C. The reduction of AuxOy species and the reduction of Fe2O3 to Fe3O4 of 3% Au/CF(0.25 shifted to a lower temperature, resulting in strong metal-metal and metal-support interactions on the prepared catalysts. In addition, the O2/H2O/CH3OH molar ratio of 0.6/2/1 gave gave the highest catalytic performance.