Synthesis of palladium nanoparticles with interstitial carbon by sonochemical reduction of tetrachloropalladate(II) in aqueous solution

Kenji Okitsu, Yoshiteru Mizukoshi, Hiroshi Bandow, Takao A. Yamamoto, Yoshio Nagata, Yasuaki Maeda

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Abstract

The metal particles of an interstitial solid solution of palladium carbide, PdCx (0 < x ≤ 0.15), were synthesized at room temperature in aqueous solution during the reduction of tetrachloropalladate(II) with sonochemically produced organic radicals. The number of carbon atoms in the Pd particles were controlled by changing the concentration and the type of organic additives. The following mechanism of PdC formation is proposed: (i) an active Pd cluster is formed during the synthesis of Pd particles, (ii) organic additives are then adsorbed on the Pd cluster surface, and finally (iii) carbon atoms on the particle surface, which are formed from the catalytic dissociation of the additives, diffuse in the Pd metal lattice.

Original languageEnglish
Pages (from-to)5470-5472
Number of pages3
JournalJournal of Physical Chemistry B
Volume101
Issue number28
Publication statusPublished - 1997 Jul 10

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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    Okitsu, K., Mizukoshi, Y., Bandow, H., Yamamoto, T. A., Nagata, Y., & Maeda, Y. (1997). Synthesis of palladium nanoparticles with interstitial carbon by sonochemical reduction of tetrachloropalladate(II) in aqueous solution. Journal of Physical Chemistry B, 101(28), 5470-5472.