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Issue 40, 2014
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Rhodium growth on Cu2S nanocrystals yielding hybrid nanoscale inorganic cages and their synergistic properties

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Abstract

Metal decoration on the edges of highly faceted Cu2S semiconductor nanocrystals yields a family of nano-inorganic caged (NICed) hybrid semiconductor–metal nanoparticles. We present the growth of rhodium and of ruthenium–rhodium mixture to give Rh–Cu2S and RuRh–Cu2S hybrid nanoparticle cages, respectively. Transmission electron microscopy affirms the growth of the metals selectively on the nanocrystal edges within a narrow temperature window. The oxidation level of the metal frame could also be controlled during the reaction stages as characterized by X-ray photoelectron spectroscopy, providing additional variation for the hybrid nanoparticle cages. The synergistic electronic properties of the hybrid nanocages were observed on a single particle level using scanning tunneling spectroscopy. The various cage nanoparticles are also of interest as possible catalysts for metal and metal-oxide catalyzed reactions.

Graphical abstract: Rhodium growth on Cu2S nanocrystals yielding hybrid nanoscale inorganic cages and their synergistic properties

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Supplementary files

Article information


Submitted
18 Apr 2014
Accepted
08 Jul 2014
First published
08 Jul 2014

CrystEngComm, 2014,16, 9506-9512
Article type
Paper
Author version available

Rhodium growth on Cu2S nanocrystals yielding hybrid nanoscale inorganic cages and their synergistic properties

K. Vinokurov, Y. Bekenstein, V. Gutkin, I. Popov, O. Millo and U. Banin, CrystEngComm, 2014, 16, 9506
DOI: 10.1039/C4CE00822G

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