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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO
2
-saturated solution
Corrosion Science, Volume 51, No. 4, Year 2009
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Description
The corrosion inhibition and adsorption behaviour of 2-undecyl-1-ethylamino imidazoline (2UEI) on N80 mild steel in CO2-saturated 3% NaCl solutions was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy techniques and SEM observation. Inhibitor efficiency increased with increase in 2UEI concentration. Temperature studies revealed an increase in inhibition efficiency with rise in temperature and corrosion activation energies decreased in the presence of 2UEI. A mechanism of chemical adsorption of 2UEI on the metal's surface is proposed. The adsorption characteristics of the inhibitor were approximated by Temkin isotherm. The inhibition efficiency of 2UEI was enhanced in the presence of iodide ions. © 2009 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Okafor, Peter Chukwuemeka
China, Shenyang
State Key Laboratory for Corrosion and Protection Shenyang
Nigeria, Calabar
University of Calabar
Liu, X.
China, Shenyang
State Key Laboratory for Corrosion and Protection Shenyang
China, Shenyang
Shenyang University of Chemical Technology
Zheng, Yugui
China, Shenyang
State Key Laboratory for Corrosion and Protection Shenyang
Statistics
Citations: 250
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1016/j.corsci.2009.01.017
ISSN:
0010938X