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3 D Characterization of Gold Nanoparticles Supported on Heavy Metal Oxide Catalysts by HAADF‐STEM Electron Tomography
Author(s) -
González J. C.,
Hernández J. C.,
LópezHaro M.,
del Río E.,
Delgado J. J.,
Hungría A. B.,
Trasobares S.,
Bernal S.,
Midgley P. A.,
Calvino José Juan
Publication year - 2009
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.200901308
Subject(s) - materials science , electron tomography , nanoparticle , catalysis , metal , colloidal gold , nanocrystal , characterization (materials science) , oxide , nanotechnology , epitaxy , crystallography , metallurgy , scanning transmission electron microscopy , chemistry , transmission electron microscopy , biochemistry , layer (electronics)
Living on the edge : Three‐dimensional reconstructions from electron tomography data recorded from Au/Ce 0.50 Tb 0.12 Zr 0.38 O 2−x catalysts show that gold nanoparticles (see picture; yellow) are preferentially located on stepped facets and nanocrystal boundaries. An epitaxial relationship between the metal and support plays a key role in the structural stabilization of the gold nanoparticles.