HERFD-XAS study of CeO2 and FeCo-based core-shell particles

We intend to study the the reaction mechanism of CeO2 nanoparticles with hydrogen peroxide (H2O2) by controlled synthesis using x-ray absorption spectroscopy. CeO2 systems are widely used in areas of catalysis, fuel cells, and biomedical applications. The goal of our research is to gain insights into the dynamic Ce3+/Ce4+ formation that is fundamental to modulate the catalytic performance. We will also perform HERFD XAS on FeCo-based core-shell particles. We expect that these in-situ HERFD measurements detect changes in the electronic structure, and provide evidence on the ion that is responsible for the promising catalytic properties.