Single-atom Pd sites on the surface of Pd–In nanoparticles supported on γ-Al2O3: a CO-DRIFTS study

The CO-DRIFTS investigation of a Pd–In catalyst obtained via the PdIn(AcO)₅ complex showed the presence of single palladium atoms isolated by indium on the surface. A short-time exposure to air under ambient conditions induced the decomposition of the single-atom structure, which can be recovered by mild reduction.