Corrosion Inhibition of Carbon Steel in Sulfuric Acid by [BMIm] [Lys] Amino Acid Ionic Liquids

Autor:	Chun Mei Jiang, Xiang Mei Zeng, Xing Wen Zheng, Xiu Zhou Lin, Min Gong
Rok vydání:	2012
Předmět:	Materials science Carbon steel Inorganic chemistry General Engineering Langmuir adsorption model Sulfuric acid engineering.material Electrochemistry Corrosion symbols.namesake chemistry.chemical_compound Corrosion inhibitor Adsorption chemistry Ionic liquid engineering symbols
Zdroj:	Advanced Materials Research. :1434-1440
ISSN:	1662-8985
DOI:	10.4028/www.scientific.net/amr.476-478.1434
Popis:	The corrosion inhibition effect and mechanism of the amino acid ionic liquids—1-butyl-3-methylimidazolium Lysine ([BMIm][Lys]) for carbon steel in 5% H2SO4solution are investigated by electrochemical tests. The results indicate that the [BMIm][Lys] has a good inhibition performance for the carbon steel in 5% H2SO4solution. The corrosion inhibition efficiency improves with the increase of the concentration, which arrives at 95% ultimately. The study also shows that the inhibitors are mixed-type ones. The adsorption of the inhibitor molecules on the carbon steel surface obeys Langmuir adsorption isotherm.
Databáze:	OpenAIRE
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