Spontaneous attachment of amines to carbon and metallic surfaces

Iluminada Gallardo, Jean Pinson, Neus Vilà

Research output: Contribution to journalArticleResearchpeer-review

129 Citations (Scopus)


Primary alkylamines attach spontaneously from acetonitrile (ACN) solutions onto glassy carbon and metallic surfaces (Au, Pt, Cu, and Fe). The surface concentration of the organic layer measured from the integration of cyclic voltammograms appears close to or lower than that of a compact monolayer. The rate of the attachment depends on the concentration of the primary amino compound; it reaches a maximum after 3 h of immersion for the most concentrated solutions (20 mM). The modified surfaces have been characterized by cyclic voltammetry (CV), energy dispersive X-ray spectrometry (EDX), X-ray photoelectron spectroscopy (XPS), and infrared spectroscopy (ATR). The possible reaction mechanisms are discussed. © 2006 American Chemical Society.
Original languageEnglish
Pages (from-to)19521-19529
JournalJournal of Physical Chemistry B
Issue number39
Publication statusPublished - 5 Oct 2006


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