On the structure of bimetallic noble metal nanoparticles as revealed by aberration corrected scanning transmission electron microscopy (STEM)

Alvaro Mayoral, Francis Leonard Deepak, Rodrigo Esparza, Gilberto Casillas, Cesar Magen, Eduardo Perez-Tijerina, Miguel Jose-Yacaman

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In the present manuscript we present the feasibility of two different routes to obtain metal nanoparticles: (1) inert gas deposition technique (IGC) and (2) chemical routes. These two routes can enable the production of metal nanoparticles with a well-controlled size and shape distribution. In addition, Co/Au and Pd/Au nanoparticles have been deposited on three different grids with the aim of studying the coalescence of the different metals. The as-synthesized materials, that initially were forming isolated, core-shell, were sintered by thermal treatment (Co/Au) or by strong electron beam irradiation and the subsequent characterization was carried out in situ in an aberration corrected STEM.

Original languageEnglish (US)
Pages (from-to)557-564
Number of pages8
JournalMicron
Volume43
Issue number4
DOIs
StatePublished - Mar 2012
Externally publishedYes

Keywords

  • Aberration corrected
  • Electron microscopy
  • Nanoparticles

ASJC Scopus subject areas

  • Structural Biology
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Cell Biology

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