Hydrogen spillover studies on diluted Rh/Al2O3 catalyst

Palladium supported on structured and nonstructured carbon: A consideration of Pd particle size and the nature of reactive hydrogen

“…In a series of blank runs, there was no observable H 2 consumption or release by/from the carbon supports over the same temperature range. This was expected and is consistent with the literature [56,57]. None of the Pd systems (bulk/physically mixed/chemically supported) considered in this work generated a positive peak during TPR in advance of H 2 release.…”

Hydrogen storage in nickel catalysts supported on activated carbon

“…At a certain point, the additional surface area of the dilutent brings no further benefit to the hydrogen uptake. At higher dilution ratios, the number of H spilt-over acceptor sites stabilized by the support increases but the generation of the H spillover decreases as the number of Ni decreases [32].…”

Study of nickel nanoparticles supported on activated carbon prepared by aqueous hydrazine reduction

“…At a certain point, the additional surface area of the diluent brings no further benefit to the hydrogen uptake. At higher dilution ratio, the number of H spillover acceptor sites stabilized by the support increases but the generation of the H spillover decreases as the number of Ni atoms decreases [54].…”

“…Especially, migration of hydrogen atoms from a metal, which is active in the dissociative adsorption of hydrogen, to an oxide or carbon surface, which itself has no activity for dissociative hydrogen adsorption, is very important [54,55]. It has been claimed that the hydrogen spillover plays a very important role in aromatic hydrogenation on metal supported catalysts.…”