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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Corrosion inhibition of steel in 0.5 M H
2
SO
4
by [(2-pyridin-4-ylethyl)thio]acetic acid
Applied Surface Science, Volume 250, No. 1-4, Year 2005
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Description
The influence of [(2-pyridin-4-ylethyl)thio]acetic acid (P1) and pyridine (P2) on the corrosion inhibition of steel in sulphuric acid solution is studied using weight loss, potentiodynamic polarisation and linear polarisation resistance (R p ) and electrochemical impedance spectroscopy (EIS) measurements. Results obtained show that P1 is the best inhibitor and its inhibition efficiency (E%) increases with the increase of concentration. The highest E% of 82% is observed at 5 × 10 -3 M. Potentiodynamic polarisation studies clearly reveal that P1 acts as a mixed inhibitor. The inhibitor studied reduces the corrosion rates. E% values obtained from various methods used are in good agreement. Adsorption of P1 on steel surface obeys to Langmuir adsorption isotherm. Effect of temperature indicates that E% decreases with temperature between 298 and 353 K. © 2004 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Bouklah, Mohammed
Morocco, Oujda
Faculté Des Sciences D’oujda
Ouassini, Abdelhamid
Morocco, Oujda
Faculté Des Sciences D’oujda
Hammouti, Belkheir
Morocco, Oujda
Faculté Des Sciences D’oujda
El Idrissi, A.
Morocco, Oujda
Faculté Des Sciences D’oujda
Statistics
Citations: 55
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/j.apsusc.2004.12.021
ISSN:
01694332