Stabilization of palladium nanoparticles by polymers and layer silicates

Szilvia Papp, I. Dékány

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Palladium nanocolloid particles were grown by homogenous nucleation and on montmorillonite by heterogeneous nucleation in aquatic suspensions. Aqueous polymer solutions and montmorillonite were used for stabilizing Pd0 nanoparticles, which were adsorbed on the external and internal surfaces of the silicate lamellae. Interlamellar incorporation of nanoparticles was monitored by X-ray diffraction and verified by transmission electron microscopy by determining the size and the size distribution functions of the particles. Adsorption isotherms were determined for characterization of the polymer/nanoparticle interaction between the silicate layers. A novel method was introduced for adsorption of polymer-stabilized Pd nanoparticles on layer silicates. It was established that average particle size may be controlled within the range of 1-6 nm, depending on the method of stabilization with polymer and the concentration of precursor palladium ions on the montmorillonite surface.

Original languageEnglish
Pages (from-to)727-737
Number of pages11
JournalColloid & Polymer Science
Volume281
Issue number8
DOIs
Publication statusPublished - Aug 1 2003

Fingerprint

Silicates
Palladium
Bentonite
palladium
silicates
Polymers
montmorillonite
Stabilization
stabilization
Clay minerals
Nanoparticles
nanoparticles
polymers
Nucleation
nucleation
adsorption
lamella
Polymer solutions
Adsorption isotherms
Distribution functions

Keywords

  • Clay minerals
  • Intercalation of nanoparticles
  • Montmorillonite
  • Palladium nanoparticles
  • Polymer adsorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry
  • Colloid and Surface Chemistry

Cite this

Stabilization of palladium nanoparticles by polymers and layer silicates. / Papp, Szilvia; Dékány, I.

In: Colloid & Polymer Science, Vol. 281, No. 8, 01.08.2003, p. 727-737.

Research output: Contribution to journalArticle

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