Singh, D D N and Pandeya, A (2010) Role of Self-Assembled Monolayer of 1,2,3-Benzotriazole in Protecting Copper Artifacts Covered with Sulfide Film. Corrosion, 66 (11). 115002-115002-11.
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Corrosion inhibition of the self-assembled monolayer (SAM) of 1,2,3-Benzotriazole (BTAH) on virgin and sulfide-covered (tarnished) copper surfaces was studied using impedance, scanning electron microscopy, and Raman spectroscopy. SAM on preexisting sulfide film develops a more improved protection than on the virgin surface. Addition of HS- ions and nonionic surface active agents (NIS) in SAM-forming solution deteriorate its properties. Raman spectroscopy established formation of polymeric film by adsorption of triazolate ion rather than triazole molecule. A scheme is suggested for improved inhibition of SAM on tarnished copper. Studies indicate a predominant cathodic control of corrosion reaction by the SAM film.
|Uncontrolled Keywords:||copper; corrosion; electrochemical impedance spectroscopy; Raman spectroscopy; self-assembled monolayer|
|Divisions:||Corrosion and Surface Engineering|
|Deposited By:||INVALID USER|
|Deposited On:||13 Jul 2011 11:24|
|Last Modified:||03 Jul 2013 18:04|
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