Hydrogen sorption in Pd-decorated Mg-MgO core-shell nanoparticles

TitleHydrogen sorption in Pd-decorated Mg-MgO core-shell nanoparticles
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2009
AuthorsCallini, E., Pasquini L., Piscopiello E., Montone A., Antisari M.V., and Bonetti E.
JournalApplied Physics Letters
KeywordsCore-shell morphologies, Core-shell nanoparticles, Fast kinetics, Gravimetric capacity, Hydride transformations, Hydrogen, Hydrogen sorption, In-situ, Inert gas condensation, Inert gases, Metal-oxide, MgO shells, Nanoparticles, Palladium, Pd clusters, Sorption, Transmission electron microscopy

Mg nanoparticles with metal-oxide core-shell morphology were synthesized by inert-gas condensation and decorated by in situ Pd deposition. Transmission electron microscopy and x-ray diffraction underline the formation of a noncontinuous layer with Pd clusters on top of the MgO shell. Even in the presence of a thick MgO interlayer, a modest (2 at. %) Pd decoration deeply enhances the hydrogen sorption properties: previously inert nanoparticles exhibit metal-hydride transformation with fast kinetics and gravimetric capacity above 5 wt %. © 2009 American Institute of Physics.


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