Dataset for Dynamics of PdGa Alloy Dynamics under CO2 Hydrogenation from Surface Organometallic Chemistry on a Chip and operando Transmission Electron Microscopy

We make use of a Surface Organometallic Chemistry (SOMC) approach on a Al2O3 coated MEMS Chip to enable the preparation of well-defined bimetallic nanoparticles suitable for operando (scanning) transmission electron microscopy studies at high-resolution. Via this novel approach, we prepare bimetallic PdGa nanoparticles on the Al2O3 coated chip and study their interaction with the gas phase in the context of CO2 hydrogenation. We show the dynamic formation of PdGa-GaOx interfaces under CO2 hydrogenation conditions, while observing minor quantities of MeOH. With our study, we shed light on the promotional role of Ga in the context of CO2 hydrogenation catalysts.