Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 54, Issue -, Pages 145-154Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2015.03.013
Keywords
Adsorption; Corrosion; Polarization; H2SO4
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Funding
- Ministry of Human Resource and Development (MHRD), New Delhi, India
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The corrosion inhibition property of Schiff bases of isatin namely 3-(4-(3-phenylallylideneamino) phenylimino)indolin-2-one (PI) and 3-(4-(4-methoxybenzylideneamino)phenylimino)indolin-2-one (MI) has studied in 20% H2SO4 for mild steel using gravimetric, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (Tafel), scanning electron microscopy (SEM) techniques and quantum chemical calculation. Inhibitors adsorption takes place by obeying Langmuir adsorption isotherm. Potentiodynamic polarization measurements showed that inhibitors acted as a mixed type but cathodically dominant. (C) 2015 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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