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Chem Commun (Camb). 2017 Feb 10. doi: 10.1039/c6cc08369b. [Epub ahead of print]

Trapping shape-controlled nanoparticle nucleation and growth stages via continuous-flow chemistry.

Author information

  • 1King Abdullah University of Science and Technology (KAUST), Division of Physical Sciences and Engineering (PSE), Thuwal 23955-6900, Saudi Arabia. osman.bakr@kaust.edu.sa and York Nanocentre, University of York, Heslington, York YO10 5DD, UK. alec.lagrow@york.ac.uk.
  • 2King Abdullah University of Science and Technology (KAUST), Division of Physical Sciences and Engineering (PSE), Thuwal 23955-6900, Saudi Arabia. osman.bakr@kaust.edu.sa.
  • 3King Abdullah University of Science and Technology (KAUST), SABIC Corporate Research and Innovation Center, Thuwal, 23955-6900, Saudi Arabia.
  • 4King Abdullah University of Science and Technology (KAUST), Imaging and Characterization Lab, Thuwal 23955-6900, Saudi Arabia.
  • 5Mathematical Institute, University of Oxford, Oxford, OX2 6GG, UK.

Abstract

Continuous flow chemistry is used to trap the nucleation and growth stages of platinum-nickel nano-octahedra with second time resolution and high throughputs to probe their properties ex situ. The growth starts from poorly crystalline particles (nucleation) at 5 seconds, to crystalline 1.5 nm particles bounded by the {111}-facets at 7.5 seconds, followed by truncation and further growth to octahedral nanoparticles at 20 seconds.

PMID:
28184392
DOI:
10.1039/c6cc08369b
[PubMed - as supplied by publisher]
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