Title of article
Electrochemical approach of Kalmegh leaf extract on the corrosion behavior of aluminium alloy in alkaline solution
Author/Authors
chaubey, namrata udai pratap autonomous college - department of chemistry, Varanasi, India , singh, vinod kumar udai pratap autonomous college - department of chemistry, Varanasi, india , quraishi, m. a. banaras hindu university - indian institute of technology - department of chemistry, Varanasi, India
From page
75
To page
82
Abstract
Introduction The effect of Kalmegh leaf extract (KLE) on the corrosion behavior of aluminium in 1 M NaOH solution was studied using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) studies. Results Inhibition efficiency (ή%) increased with increasing the concentration of extract and maximum inhibition efficiency observed is 82.24 and 82.45% from EIS and PDP studies, respectively, at higher concentration.Conclusion The adsorption of the inhibitor on aluminium surface was in accordance with the Langmuir adsorption isotherm. Potentiodynamic polarization study showed mixed type inhibition with predominantly cathodic effect. SEM and AFM study was carried out to support theexperimental inhibition data.
Keywords
Aluminium alloy , Corrosion , EIS , SEM
Journal title
International Journal of Industrial Chemistry (IJIC)
Journal title
International Journal of Industrial Chemistry (IJIC)
Record number
2564898
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