Spontaneous Attachment of Amines to Carbon and Metallic Surfaces
The Journal of Physical Chemistry B2006Vol. 110(39), pp. 19521–19529
Citations Over TimeTop 10% of 2006 papers
Abstract
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.
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