Sonochemically synthesized core-shell structured Au-Pd nanoparticles supported on γ-Fe2O3 particles

Hiroaki Nitani, Masato Yuya, Takahiro Ono, Takashi Nakagawa, Satoshi Seino, Kenji Okitsu, Yoshiteru Mizukoshi, Shuichi Emura, Takao A. Yamamoto

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A sample of Au-Pd bimetallic nanoparticles supported on γ-Fe 2O3 was synthesized in a sonochemically one-pot process. The structural analyses of the synthesized sample were performed by the techniques of X-ray Absorption Fine Structure (XAFS) X-ray Diffraction (XRD) Transmission Electron Microscopy (TEM) and UV-vis spectrometry. Results indicated that the synthesized sample formed a core-shell structure in which a gold core was surrounded by a thin palladium shell. The reaction rate constant for the hydrogenation of cyclohexene of the present sample showed higher value than that of Pd nanoparticles supported on γ-Fe2O3 and core-shell structured Au-Pd nanoparticles supported on SiO2. The present sample is a promising catalyst material which has a high catalytic activity.

Original languageEnglish
Pages (from-to)951-958
Number of pages8
JournalJournal of Nanoparticle Research
Volume8
Issue number6
DOIs
Publication statusPublished - 2006 Dec 1

Keywords

  • Catalyst
  • Colloids
  • EXAFS
  • Nanocomposit
  • Nanostructure
  • Sonochemically synthesis
  • Three-phase mixture

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

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