Preparation of platinum nanoparticles in heterogeneous solid-liquid system by ultrasound and microwave irradiation

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13 Citations (Scopus)

Abstract

Pt nanoparticles and Pt/spherical carbon (SC) were prepared in a heterogeneous (PtO 2/SC, water/ethanol) solid-liquid system without dispersant using ultrasound and microwave irradiation. The Pt nanoparticles and Pt/SC were characterized using X-ray diffraction (XRD), transmission electron microscopy-energy-dispersive X-ray spectroscopy (TEM-EDX), and dynamic light scattering method for particle size determination. The average size of the Pt nanoparticles prepared by only ultrasound irradiation was smaller than that prepared by microwave irradiation. Pt nanoparticles were successfully prepared by microwave irradiation with a reaction time of several minutes at a specific concentration of diluted ethanol. Pt/SC prepared by combined ultrasound and microwave irradiation resulted in fine particles with good homogeneous distribution.

Original languageEnglish
Pages (from-to)4482-4487
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number9
DOIs
Publication statusPublished - 2008 Sep 1

Keywords

  • Microwave
  • No dispersant
  • Platinum nanoparticles
  • Solid-liquid system
  • Ultrasound

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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