Growth of Pd nanoparticles on layer silicates hydrophobized with alkyl chains in ethanoltetrahydrofuran mixtures

Szilvia Papp, I. Dékány

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The surface of montmorillonite, a hydrophilic layer silicate, was modified with alkylammonium and alkylpyridinium cations with the aim of producing Pd nanoparticles within the hydrophobized interlamellar space. The structure and interlamellar swelling of hexadecylpyridinium and tetradodecylammonium montmorillonite were first studied in tetrahydrofuran-ethanol mixtures. It was established that both hydrophobic montmorillonites swell readily in tetrahydrofuran and the interlamellar spaces may be employed as nanoreactors for the synthesis of Pd° particles. Ethanol was adsorbed on the surface of the hydrophobic support. After addition of the precursor Pd-acetate, metallic Pd was produced on the external and internal surfaces of the support. The diameter of the particles formed was in the range of 2-5 nm as shown by TEM.

Original languageEnglish
Pages (from-to)956-962
Number of pages7
JournalColloid & Polymer Science
Volume280
Issue number10
DOIs
Publication statusPublished - 2002

Fingerprint

Silicates
Bentonite
silicates
montmorillonite
tetrahydrofuran
Nanoparticles
Clay minerals
nanoparticles
Ethanol
ethyl alcohol
Cetylpyridinium
Nanoreactors
swelling
Swelling
Cations
acetates
Acetates
Positive ions
Transmission electron microscopy
cations

ASJC Scopus subject areas

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

Cite this

Growth of Pd nanoparticles on layer silicates hydrophobized with alkyl chains in ethanoltetrahydrofuran mixtures. / Papp, Szilvia; Dékány, I.

In: Colloid & Polymer Science, Vol. 280, No. 10, 2002, p. 956-962.

Research output: Contribution to journalArticle

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