Sonochemical preparation of noble metal nanoparticles in the presence of various surfactants

E. Takagi, Yoshiteru Mizukoshi, R. Oshima, Y. Nagata, H. Bandow, Y. Maeda

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Noble metal particles were prepared by the sonochemical reduction of noble metal ions, NaAuCl4 (Au (III)), PdCl2 (Pd (II)), H2PtCl6 (Pt (IV)) and K2PtCl4 (Pt (II)) in the aqueous solution containing surfactants, such as sodium dodecylsulfate (SDS), sodium dodecylbenzensulfonate (DBS) and polyethylene glycol monostearate (PEG-MS). The sonochemical reduction rates of Au (III) to Au (0), Pd (II) to Pd (0), Pt (IV) to Pt (II) and Pt (II) to Pt (0) in SDS solution (CMC; 8 mM) are 83, 140, 97 and 24 μM/min, respectively. The size of metal nanoparticles were measured by TEM, in the case of SDS solution, the particles of Au, Pt and Pd are 13 nm, 3 nm and 7 nm in diameter with narrow distribution. The reduction rates in PEG-MS (Au (III) to Au (0); 380 μM/min, Pd (II) to Pd (0); 330 μM/min, Pt (IV) to Pt (II);150 μM/min) were faster than those in SDS and the size of nanoparticles of Pd (4 nm) in PEG-MS was smaller than that in SDS. The size of the particles in the growing process became feasible to be measured by removing coexisting ions at each desired time by means of anion-exchange resin.

Original languageEnglish
Pages (from-to)335-338
Number of pages4
JournalStudies in Surface Science and Catalysis
Volume132
Publication statusPublished - 2001 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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