4.8 Article

Concave Cubic Gold Nanocrystals with High-Index Facets

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 40, Pages 14012-14014

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja106394k

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Funding

  1. National Science Foundation at the Material Research Center of Northwestern University
  2. NSF-NSEC
  3. NSF-MRSEC
  4. Keck Foundation
  5. Northwestern University
  6. DoD
  7. AFOSR

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A new class of gold nanostructures, concave nanocubes, enclosed by 24 high-index (720) facets, have been prepared in a monodisperse fashion by a modified seed-mediated synthetic method. The Cl- counterion in the surfactant plays an essential role in controlling the concave morphology of the final product. The concave nanocubes exhibit higher chemical activities compared with low-index {111}-faceted octahedra.

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