Diffusion through the Shells of Yolk–Shell and Core–Shell Nanostructures in the Liquid Phase

Authors


  • Financial assistance for this project was provided primarily by a grant from the US Department of Energy. Additional funding was provided by the US National Science Foundation. X.L. and J.L. acknowledge support from the China Scholarship Council, and A.G. acknowledges financial support from the Spanish Ministerio de Educación.

Abstract

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Easy in, easy out: Mass transport through TiO2 and SiO2 shells was probed in the liquid phase with IR spectroscopy by detecting carbon monoxide adsorption in Pt@void@TiO2 yolk–shell and Pt@SiO2 core–shell nanostructures (see picture; C green, O red, Pt pale red). Adsorption was observed on the surface of Pt nanoparticle cores, and on the inner face of the TiO2 shells in the yolk–shell case.

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