PhD Researcher Henrik Hoyer Presents Advanced Raman Spectroscopy Findings at RamanFest 2025

Insight into Defect Dynamics and Catalytic Mechanisms of Copper-Ceria Catalysts Using Modulation Excitation Spectroscopy.

02.07.2025

From July 2–3, 2025, our PhD student Henrik Hoyer presented his latest research at the 12th International Conference on Advanced Applied Raman Spectroscopy (RamanFest 2025) in Frankfurt. His talk, titled „Enlightening the Defect Dynamics in Copper-Ceria Catalysts Using Raman Modulation Excitation Spectroscopy“, showcased a novel understanding of CO oxidation over low-loaded copper-ceria catalysts. Using Raman and UV-Vis modulation excitation spectroscopy (MES), Henrik proposed a detailed Mars-van Krevelen mechanism, highlighting how defect dynamics in the ceria support and the low copper loading actively drive the catalytic process. This work underscores the power of Raman and UV-Vis MES techniques in unraveling complex heterogeneous catalytic reactions.