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 journalArticle

46 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 languageEnglish (US)
Pages (from-to)606-609
Number of pages4
JournalJournal of the American Chemical Society
Volume135
Issue number2
DOIs
StatePublished - Jan 16 2013
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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