Shape control from thermodynamic growth conditions: The case of HCP ruthenium hourglass nanocrystals

John Watt; Chenlong Yu; Shery L.Y. Chang; Soshan Cheong; Richard D. Tilley

doi:10.1021/ja311366k

Shape control from thermodynamic growth conditions: The case of HCP ruthenium hourglass nanocrystals

John Watt, Chenlong Yu, Shery L.Y. Chang, Soshan Cheong, Richard D. Tilley

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

Recent successes in forming different shaped face centered cubic (fcc) metal nanostructures has enabled a greater understanding of nanocrystal growth mechanisms. Here we extend this understanding to the synthesis of hexagonally close packed (hcp) metal nanostructures, to form uniquely faceted ruthenium nanocrystals with a well-defined hourglass shape. The hourglass nanocrystals are formed in a three-step thermodynamic growth process with dodecylamine as the organic stabilizer. The hourglass nanocrystals are then shown to readily self-assemble to form a new type of nanocrystal superlattice.

Original language	English (US)
Pages (from-to)	606-609
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	135
Issue number	2
DOIs	https://doi.org/10.1021/ja311366k
State	Published - Jan 16 2013
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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abstract = "Recent successes in forming different shaped face centered cubic (fcc) metal nanostructures has enabled a greater understanding of nanocrystal growth mechanisms. Here we extend this understanding to the synthesis of hexagonally close packed (hcp) metal nanostructures, to form uniquely faceted ruthenium nanocrystals with a well-defined hourglass shape. The hourglass nanocrystals are formed in a three-step thermodynamic growth process with dodecylamine as the organic stabilizer. The hourglass nanocrystals are then shown to readily self-assemble to form a new type of nanocrystal superlattice.",

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AU - Tilley, Richard D.

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AB - Recent successes in forming different shaped face centered cubic (fcc) metal nanostructures has enabled a greater understanding of nanocrystal growth mechanisms. Here we extend this understanding to the synthesis of hexagonally close packed (hcp) metal nanostructures, to form uniquely faceted ruthenium nanocrystals with a well-defined hourglass shape. The hourglass nanocrystals are formed in a three-step thermodynamic growth process with dodecylamine as the organic stabilizer. The hourglass nanocrystals are then shown to readily self-assemble to form a new type of nanocrystal superlattice.

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Shape control from thermodynamic growth conditions: The case of HCP ruthenium hourglass nanocrystals

Abstract

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