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Synthesis of Au–Pd bimetallic nanoparticles under energetic irradiation fields

Authors
Journal
Radiation Physics and Chemistry
0969-806X
Publisher
Elsevier
Publication Date
Volume
78
Issue
12
Identifiers
DOI: 10.1016/j.radphyschem.2009.05.007
Keywords
  • Au–Pd Nanoparticle Synthesis
  • γ-Rays
  • Pulsed Electrons
  • Gev Heavy Ions
  • Core–Shell Structure
  • Dose Rate Dependence

Abstract

Abstract Bimetallic Au–Pd nanoparticles were synthesized under high-energy irradiation fields (1.17 and 1.33 MeV γ-rays, 9 MeV electrons, and 1.6 GeV C ions) from solutions containing Au 3+ and Pd 2+ and cationic surfactant (sodium dodecyl sulfate). Particles synthesized by the irradiation were observed using conventional transmission electron microscope (TEM) and annular dark-field scanning transmission electron microscopy (ADF-STEM). The particles synthesized by γ-rays and C ion irradiation exhibit core–shell structure with a Au-core and a Pd-shell. The dependence of the size distribution of nanoparticles on the dose rate is discussed.

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