Reductive Treatment of Ga–Pt-Supported Catalytically Active Liquid Metal Solutions (SCALMS) for Propane Dehydrogenation

, which is 3 times more stable than what was observed for the untreated catalyst. This deactivation is ascribed to bulk restructuring of the alloy, leading to the formation of less active Pt species as confirmed by spectroscopic and microscopic analysis. Our work not only elucidates the fundamental properties, i.e., typology, electronic structure, and reactivity, of isolated Pt atoms in Ga-Pt SCALMS but also proposes underlying mechanisms for the activation and deactivation of PDH catalysts.