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Title: An electrochemical and quantum chemical investigation of some corrosion inhibitors on aluminium alloy in 0.6 M aqueous sodium chloride solution
Authors: Banerjee, R
Panja, S S
Nandi, M M
Keywords: Aluminium;Polarization;Corrosion inhibition;Molecular size;Quantum chemical calculation;DFT calculation
Issue Date: Jul-2011
Abstract: The role of phthalic acid (I) and related compounds, viz., o-phenylenediamine (II) and anthranilic acid (III) to protect aluminium alloy against corrosion in 0.6 M aqueous sodium chloride solution is studied using potentiodynamic polarization technique and impedance studies. The order of inhibition effect of these compounds is found to be I < II < III. Density functional theory (DFT) has been used to analyze the characteristics of the inhibition mechanism and to describe electronic and structural nature of the inhibitor on the corrosion process. Attempt has been made to correlate the inhibiting properties with the electronic parameters and molecular area of the inhibitors
Page(s): 309-313
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.18(4) [July 2011]

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