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Self-Assembling Monolayers of Stearic Acid in Protection of Steel

Marušić, Katarina; Otmačić Ćurković, Helena (2018) Self-Assembling Monolayers of Stearic Acid in Protection of Steel. Croatica Chemica Acta, 91 (4). pp. 427-433. ISSN 0011-1643

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Carbon steel corrodes severely in presence of sodium chloride and it needs additional protection to be used in marine environments. This work investigates the possibility of using a layer of stearic acid as protection for carbon steel. Stearic acid was applied on the steel by two types of treatments: chemical preparation - by immersion of a steel sample in the SA solution and electrochemical preparation – by imposing a corresponding potential to the system. The results have shown that although both treatments result in obtaining an ordered aliphatic monolayer and both treatments increase the hydrophobicity of the surface, protection that the electrochemical preparation offers is stable in time, while the protection the chemical preparation offers is not.

Item Type: Article
Uncontrolled Keywords: corrosion ; carbon steel ; self-assembled monolayer ; electrochemically directed assembly ; electrochemical impedance spectroscopy ; fourier transform infrared spectroscopy
Subjects: NATURAL SCIENCES > Chemistry
NATURAL SCIENCES > Chemistry > Physical Chemistry
NATURAL SCIENCES > Chemistry > Applied Chemistry
TECHNICAL SCIENCES > Chemical Engineering
Divisions: Division of Materials Chemistry
Depositing User: Katarina Marušić
Date Deposited: 02 Jul 2019 10:10
DOI: 10.5562/cca3436

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