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Diffusion through the Shells of Yolk–Shell and Core–Shell Nanostructures in the Liquid Phase
Author(s) -
Liang Xiaoliang,
Li Jie,
Joo Ji Bong,
Gutiérrez Alejandro,
Tillekaratne Aashani,
Lee Ilkeun,
Yin Yadong,
Zaera Francisco
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203456
Subject(s) - shell (structure) , adsorption , void (composites) , nanostructure , materials science , diffusion , spectroscopy , liquid phase , yolk , nanoparticle , nanotechnology , chemical engineering , chemistry , composite material , thermodynamics , physics , food science , quantum mechanics , engineering
Easy in, easy out : Mass transport through TiO 2 and SiO 2 shells was probed in the liquid phase with IR spectroscopy by detecting carbon monoxide adsorption in Pt@void@TiO 2 yolk–shell and Pt@SiO 2 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 TiO 2 shells in the yolk–shell case.