Use of aqueous foams for the synthesis of gold nanoparticles of variable morphology

Saikat Mandal, Sujatha K. Arumugam, Suguna D. Adyanthaya, Renu Pasricha, Murali Sastry

Research output: Contribution to journalArticle

Abstract

In this paper we describe the facile synthesis of gold nanocrystals of variable morphology using aqueous foam as a template. The aqueous foams are formed by bubbling an aqueous solution of AuCl4- ions electrostatically complexed with the surfactant cetyltrimethylammonium bromide (CTAB). The gold ions in the stable foam are then reduced by hydrazine vapours, this process leading to the formation of gold nanoparticles of spherical, flat plate and flake-like structures. The variation in morphology of the gold nanoparticles derived from the foam is believed to arise from the complex spatial structure of reaction sites in the foam. The foam-derived gold nanoparticles were analysed by UV-vis spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy and transmission electron microscopy.

Original languageEnglish (US)
Pages (from-to)43-47
Number of pages5
JournalJournal of Materials Chemistry
Volume14
Issue number1
DOIs
StatePublished - Jan 7 2004

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Gold
Foams
Nanoparticles
hydrazine
Ions
Infrared transmission
Hydrazine
Ultraviolet spectroscopy
Surface-Active Agents
Nanocrystals
Fourier transform infrared spectroscopy
Surface active agents
Vapors
Transmission electron microscopy
X ray diffraction

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

Use of aqueous foams for the synthesis of gold nanoparticles of variable morphology. / Mandal, Saikat; Arumugam, Sujatha K.; Adyanthaya, Suguna D.; Pasricha, Renu; Sastry, Murali.

In: Journal of Materials Chemistry, Vol. 14, No. 1, 07.01.2004, p. 43-47.

Research output: Contribution to journalArticle

Mandal, Saikat ; Arumugam, Sujatha K. ; Adyanthaya, Suguna D. ; Pasricha, Renu ; Sastry, Murali. / Use of aqueous foams for the synthesis of gold nanoparticles of variable morphology. In: Journal of Materials Chemistry. 2004 ; Vol. 14, No. 1. pp. 43-47.
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