Preparation of self-assembled monolayers from micellar solutions

Jian Liu, Angel E. Kaifer

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Abstract

The self-assembly of alkanethiols on gold surfaces from micellar aqueous solutions was investigated using Triton X-100, sodium dodecylsulfate, and cetyltrimethylammonium bromide as representative nonionic, anionic, and cationic surfactants, respectively. The surfactant solutions solubilized the otherwise water-insoluble alkanethiols, which self-assembled on gold to form organized assemblies very similar to those prepared using the conventional procedures, i.e., exposure of the gold surface to a nonaqueous solution of the alkanethiol. The resulting derivatized gold electrodes exhibited typical electrochemical properties, such as low capacitance values and substantial blocking of the voltammetric reduction of Ru(NH3)63+. The concentration of surfactant was found to have a profound effect on the rate of alkanethiol chemisorption.

Original languageEnglish (US)
Pages (from-to)235-239
Number of pages5
JournalIsrael Journal of Chemistry
Volume37
Issue number2-3
DOIs
StatePublished - Jan 1 1997

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ASJC Scopus subject areas

  • Chemistry(all)

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