Structural and reactive evolution of oxidatively grafted Pd catalysts on MnO₂ for the low-temperature oxidation of CO

Isolated Pd atoms supported on high surface area MnO2, prepared by the oxidative grafting of (bis(tricyclohexylphosphine-palladium(0)), catalyze (>50 turnovers, 17 h) the low temperature (<= 325 K) oxidation of CO (7.7 kPa O-2, 2.6 kPa CO) with results of in situ/operando and ex situ spectroscopic characterization signifying a synergistic role of Pd and MnO2 in facilitating redox turnovers.