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Metallic Nanobowls: Metallic Nanobowls by Galvanic Replacement Reaction on Heterodimeric Nanoparticles (Small 5/2012)
Author(s) -
Ridelman Yonatan,
Singh Gurvinder,
PopovitzBiro Ronit,
Wolf Sharon G.,
Das Sanjib,
Klajn Rafal
Publication year - 2012
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.201290033
Subject(s) - galvanic cell , nanoparticle , metal , materials science , nanostructure , nanotechnology , morphology (biology) , chemical engineering , metallurgy , geology , paleontology , engineering
The cover image features 3D tomograms of “nanobowls”–metallic nanoparticles in the unique shape of a bowl. Each of these tomograms was obtained by the reconstruction of ∼100 images of a given nanoparticle, each taken at a different tilt angle. The nanobowls are prepared by performing the so‐called galvanic replacement reaction on nanoparticles comprising two domains, of which only one undergoes the reaction (thereby serving as a “template”), whereas the other acts as a “protecting group.” The morphology of the product is dictated by the reaction temperature; in fact, three distinct types of nanostructures–branched, heterodimeric, and bowl‐shaped particles–can be obtained from a single precursor by varying only the reaction temperature. For more information, please read the Communication “Metallic Nanobowls by Galvanic Replacement Reaction on Heterodimeric Nanoparticles” by R. Klajn and co‐workers, beginning on page 654 .