Nano Archive

Electrochemically induced self-assembly of alkanethiolate adlayers on carbon steel in aqueous solutions

Weber, C.R. and Dick, L.F.P. and Benítez, G. and Vela, M.E. and Salvarezza, R.C. (2009) Electrochemically induced self-assembly of alkanethiolate adlayers on carbon steel in aqueous solutions. Electrochimica Acta, 54 (21). p. 4817. ISSN 00134686

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Official URL: http://dx.doi.org/10.1016/j.electacta.2009.04.011

Abstract

The electrochemical behavior of carbon steel was studied in near neutral buffered aqueous solutions saturated with mercaptoundecanoic acid (MUA) and dodecanethiol (DT) by using electrochemical techniques combined with X-ray photoelectron spectroscopy (XPS). MUA and DT adsorb on the Fe surface by cathodization in the potential range corresponding to the hydrogen evolution reaction by forming thiolate bonds. The presence of the adsorbate layer in contact with an extremely low amount of thiols in the neutral solutions hinders the hydrogen evolution reaction and prevents the formation of the iron oxides in a wide potential range.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:8094
Deposited By:Lesley Tobin
Deposited On:21 Jan 2010 14:35
Last Modified:21 Jan 2010 14:35

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