We develop spectroscopy and diffraction capabilities (cells, modulation experiments, time-resolved experiments, etc.) for in situ and operando analysis of catalysts and functional materials in gas and liquid environments.
Our multitechnique approach is based on the repetition of the very same experiment with a number of techniques, from lab scale benchtop to synchrotron based methods. We use IR, Raman and UV-vis spectroscopies as well as x-ray diffraction, x-ray absorption and emission spectroscopies to obtain complementary information on the material structure and the adsorbates under reaction conditions. This means that we seek to use the same setup and the same spectroscopy cell, where sample environment allows. Thus, we also develop spectroscopy and diffraction capabilities (cells, modulation experiments, time-resolved experiments, etc.).
Our experiments exploit transients and time resolution of modern spectroscopy/diffraction methods. To this end we make systematic use of modulated excitation coupled to phase sensitive detection or chemometrics to enhance our perception of structural changes, going beyond what is attainable with classic approaches.
We are an experienced group in operando analysis of catalysts and functional materials in gas and liquid environments. We operate within the Center for Operando Spectroscopy Studies of PSI, which operates the SuperXAS and Debye beamlines at SLS.
We have organized the 7th International Congress on Operando Spectroscopy - Operando VII in Grindelwald, Switzerland.
