Journal
CORROSION SCIENCE
Volume 53, Issue 4, Pages 1529-1536Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.01.032
Keywords
Aluminium; EIS; Polarization; Weight loss; Acid inhibition
Funding
- Southwest Forestry University [XKX200907]
- Applied Fundamental Research Foundation of Yunnan Province [2009CD072]
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The inhibition effect of tetradecylpyridinium bromide (TDPB) on the corrosion of aluminium in 1.0 M HCl solution was studied by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) methods. The results show that TDPB is a very good inhibitor at little concentrations, and the adsorption of TDPB on aluminium surface obeys Langmuir adsorption isotherm. Polarization curves reveal that TDPB behaves as a cathodic inhibitor. EIS spectra consist of large capacitive loop at high frequencies followed by a large inductive one at low frequency values, and confirm the inhibitive ability. (c) 2011 Elsevier Ltd. All rights reserved.
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