Sanjaya Senanayake is a PI in the Catalysis: Reactivity and Structure (CRS) Group and leads experimental investigations in surface science and heterogeneous catalysis for C-1 (CO2, CO, CH4) activation and in the synthesis of fuels. His main research interests are in the fundamental understanding of chemical transformations over surfaces of catalysts, enabled by the use of advanced experimental methods (imaging, spectroscopy and scattering) based on X-rays and electrons to elucidate active catalytic chemistry.