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Nanoparticle growth: Small 6/2009
Author(s) -
Christensen Steven T.,
Elam Jeffrey W.,
Rabuffetti Federico A.,
Ma Qing,
Weigand Steven J.,
Lee Byeongdu,
Seifert Soenke,
Stair Peter C.,
Poeppelmeier Kenneth R.,
Hersam Mark C.,
Bedzyk Michael J.
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200990026
Subject(s) - materials science , strontium titanate , nanoparticle , platinum nanoparticles , nucleation , atomic layer deposition , nanotechnology , platinum , scanning electron microscope , noble metal , hydrothermal circulation , chemical engineering , layer (electronics) , metal , thin film , chemistry , composite material , biochemistry , organic chemistry , engineering , metallurgy , catalysis
The cover image shows a scanning electron microscopy image of platinum nanoparticles grown by atomic layer deposition (ALD) on the {001} faces of strontium titinate nanocubes. The SrTiO3 single‐crystal cubes are grown by hydrothermal methods to have 60‐nm‐long edges. Precise control over the Pt particle size, dispersion, and chemical state is achieved by controlling the number of ALD cycles. This is demonstrated by X‐ray scattering and X‐ray absorption spectroscopy studies of the early stages of particle nucleation and growth. Coupling ALD to hydrothermal synthesis enables a flexible and scalable method for the rational design of oxide‐supported, uniform noble metal clusters, with atomic‐level control over the composite composition and surface structure. For more information, please read the Full Paper “Controlled Growth of Platinum Nanoparticles on Strontium Titanate Nanocubes by Atomic Layer Deposition” by M. J. Bedzyk et al. beginning on page 750 .