The self assembly of superhydrophobic copper thiolate films on copper in thiol solutions

Whitley, Martyn, Newton, Michael, McHale, Glen and Shirtcliffe, Neil (2012) The self assembly of superhydrophobic copper thiolate films on copper in thiol solutions. Zeitschrift für Physikalische Chemie, 226 (3). pp. 187-200. ISSN 0942-9352

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Official URL: http://dx.doi.org/10.1524/zpch.2012.0140

Abstract

It is common to think of thiols as molecules that form self-assembled monolayers on gold or similar metals, they have also been used as corrosion inhibitors on copper and steel, but we show here that if the copper remains in thiol solution corrosion is accelerated and a thick layer of corrosion products with a very rough surface forms. The layer is superhydrophohic; repelling water so effectively that it rolls off leaving the surface completely dry. It is composed of a copper(I) thiolate complex and growth occurs quite rapidly under normal conditions. The film morphology depends upon the solvent and thiol used. The presence of organic amines in the solution leads to the formation of thinner layers by removing corrosion products into solution, allowing the removal of native oxide layers.

Item Type: Article
Additional Information: International Journal of Research in Physical Chemistry & Chemical Physics
Uncontrolled Keywords: superhydrophobic, thiol, copper thiolate, thick film, oxidation, corrosion, SAM.
Subjects: F100 Chemistry
F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Glen McHale
Date Deposited: 06 Aug 2012 09:47
Last Modified: 26 Oct 2017 19:23
URI: http://nrl.northumbria.ac.uk/id/eprint/8278

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