Noble metal alloy nanoparticles (NPs) such as PtFe, RuFe and PdFe NPs are desirable due to their excellent catalytic properties and lower usage of expensive noble metals. We developed synthetic procedures to produce such NPs using iron oxide particles as an iron source. We demonstrated that amounts of surfactants, their purity, precursor iron oxide NP size, etc. contribute to resulting alloy NP sizes and morphology. In the case of PtFe NPs, they may coexist with iron oxide NPs in the reaction product. This mixture obtained in situ allows much higher catalytic activity in hydrogenation of methyl-3-buten-2-ol than that of only PtFe nanoparticles or merely mixed PtFe and iron oxide particless.  The presence of both PtFe and iron oxide NPs allows also formation of dense and stable NP arrays which hold promise for catalytic applications in microreactors or other reactor designs where a catalytic film is favored.

Synthesis of noble metal alloy nanoparticles using iron oxide nanoparticles as an iron source

246th National Meeting (2013)

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