Synthesis of Polymer-Stabilized Nanosized Rhodium Particles in the Interlayer Space of Layered Silicates

Szilvia Papp, József Szél, A. Oszkó, I. Dékány

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Rhodium nanoparticles were prepared by homogeneous nucleation in aqueous polymer solution and by heterogeneous nucleation on the interlayer space of layered montmorillonite and kaolinite minerals by reduction with NaBH 4 in aquatic dispersion. Rhodium particles were stabilized by polymers and by the lamellae of layered silicates. The effect of the molecular mass and the concentration of polymers on the size of the particles formed was studied using neutral polyvinylpyrrolidone, cationic poly(diallyldimethylammonium chloride), and anionic poly(sodium 4-styrenesulfonate). The effect of the concentration of the rhodium precursor was also examined; reduction of rhodium ions was controlled by X-ray photoelectron spectroscopy. Interlamellar incorporation of nanoparticles was monitored by X-ray diffraction and small-angle X-ray scattering verified by transmission electron microscopy. Average particle size fell within the range of 1-3 nm, depending on the stabilization method used and the concentration of precursor rhodium ions.

Original languageEnglish
Pages (from-to)1674-1685
Number of pages12
JournalChemistry of Materials
Volume16
Issue number9
DOIs
Publication statusPublished - May 4 2004

Fingerprint

Silicates
Rhodium
Polymers
Nucleation
Ions
Nanoparticles
Bentonite
Kaolin
Povidone
Kaolinite
Molecular mass
Polymer solutions
Clay minerals
X ray scattering
Minerals
X ray photoelectron spectroscopy
Stabilization
Particle size
Sodium
Transmission electron microscopy

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Synthesis of Polymer-Stabilized Nanosized Rhodium Particles in the Interlayer Space of Layered Silicates. / Papp, Szilvia; Szél, József; Oszkó, A.; Dékány, I.

In: Chemistry of Materials, Vol. 16, No. 9, 04.05.2004, p. 1674-1685.

Research output: Contribution to journalArticle

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