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Abstract
In this work we report the interfacial charge transfer between the Fe core and Ag shell in self-organized nanoparticles on MgO films on Mo(001). Predeposited Fe nanoparticles organize in a square n...
Highlights
Metal nanoparticles (NPs) play a major role as catalysts in nanoscale systems, improving performances of catalytic converters, fuel cells, plasmonic devices.[1,2,3] Their activity strongly depends on several contributions, like particle size, shape, exposed active sites, metal-support interaction
To establish the amount and trend in Fe oxidation we have performed a deconvolution of Fe2p3/2 peak (Figure 2b) with tabulated peak positions and intensity ratios of Fe2+ and shakeup satellite, while for Fe0 we have considered the Fe lineshape measured before Ag deposition.[28]
In conclusion we have shown that when Ag is deposited on Fe nanoparticles on MgO/Mo(001), they replicate the ordering of Fe
Summary
Metal nanoparticles (NPs) play a major role as catalysts in nanoscale systems, improving performances of catalytic converters, fuel cells, plasmonic devices.[1,2,3] Their activity strongly depends on several contributions, like particle size, shape, exposed active sites, metal-support interaction. In this work we investigate the electronic properties and plasmonic response of Ag NPs on MgO film, when the NP assembly is induced by the pre-deposition of Fe seeds on the oxide surface.
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