Molecular Mechanism of Formation of Supported Platinum Catalysts of the Pt/Al2O3 Family
Russian Journal of General Chemistry
, E-ISSN: 1608-3350
||General Chemistry Platinum Complex Aqua Ligand Carrier Surface Chloroplatinic Acid
Institute of Hydrocarbon Processing, Siberian BranchRussian Academy of SciencesOmskRussia
Certain stages of the classical procedure for preparing aluminum-platinum catalysts, whose understanding is important from both the basic and practical viewpoints, are considered on the molecular level. Properties of both participants (active component precursor solution and oxide surface) are shown to be inhomogeneous, which can affect interaction of the components at the fixing stage. Existing views (and their evolution) on the mechanism of adsorption of platinum complexes from aqueous solutions on aluminum oxide surface are discussed. The role of chemical processes on the stage of fixing precursor on the electronic and structural properties of the supported metal is demonstrates. Strong metal-support interaction is shown to endow platinum with specific adsorption and catalytic properties in hydrocarbon transformation reactions.