A stringent comparison between two pairs of molecular/immobilized water oxidation catalysts reveals distinctive catalytic trends. While the molecular compound 1 exhibits a substantial higher activity than analogous immobilized system 1_SiO2, under all experimental conditions explored, contrary is found with 2 that far less active its counterpart 2_SiO2. This explained by unique tendency to form...

Atomic dispersion of Rh on phosphotungstic acid (PTA) salts was achieved by a self-assembled precipitation method using alkali metal ions as coprecipitation reagents. During styrene hydroformylation, the supported single-atom catalyst (Rh1/M-PTA, M refers to an ion) demonstrated optimum turnover frequency (TOF) 1076 h-1. With increasing ionic radius, pore size catalysts increased in ...

We have investigated chromium layers evaporated onto a thin alumina film at room temperature. The oxidation and reduction behavior of this model catalyst was compared to atomic layer deposition (ALD) and impregnated alumina supported catalysts using X-ray photoelectron spectroscopy (XPS) with a detailed analysis method utilizing asymmetric peak shapes to represent both metallic and oxidic state...