CO-free hydrogen production over Au/CeO2-Fe2O3 catalysts: Part 1. Impact of the support composition on the performance for the preferential CO oxidation reaction

▶ Mixed Ce-Fe oxides are used as support of gold catalysts. ▶ The support composition influences strongly the performance for the PROX reaction. ▶ The variation of the support composition causes different gold particles size. ▶ Fe2O3 in the supports composition improves the resistance towards deactivation by CO2.