C05

The project aims to tune supported iron nanoparticles for the selective hydrogenation of ethyne by increasing Fe dispersion and studying geometric and electronic surface effects. Strong metal–support interactions will be explored using various oxidic support materials and preparation methods, notably the “two-step annealing method”. Thereby, the particle size will be reduced from over 50 nm to under 5 nm to enhance surface effects to stabilize nanoparticles and prevent growth during the reaction. The impact of CO as a catalyst poison will be systematically studied through kinetic measurements.