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Bulletin of Pure and Applied Sciences-Chemistry (Started in 1982)
eISSN: 2320-320X
pISSN: 0970-4620
Impact Factor: 6.991 (2018)
DOI: 10.5958/2320-320X
Editor-in-Chief:  Dr. Pruthviraj. R.D.
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Article Details

Bulletin of Pure and Applied Sciences-Chemistry (Started in 1982)
Year : 2021, Volume & Issue : BPAS-Chemistry 40C(1), JAN-JUN 2021
Page No. : 23-29, Article Type : Original Aticle
Article DOI : 10.5958/2320-320X.2021.00004.2 (Received on 30.02.2021 Accepted on 23.05.2021)

Electrochemical Studies of Aluminium-2014 Alloy in 1M Acetic Acid using Olive leaf Extract as Corrosion Inhibitor

1Rajshekhar Ghogge 2Kenchamarappa 3Pruthviraj R.D.*
Author’s Affiliation : 1,2Department of Physics, Dr. Ambedkar Institute of Technology, Bengaluru, Karnataka 560056, India. 3Department of Chemistry, Department of Chemistry, Rajarajeswari college of Engineering, Mysore raod, Bangalore, Karnataka 560074, India

Corresponding Author : Pruthviraj RD, Department of Chemistry, Rajarajeswari college of Engineering, Mysore raod, Bangalore, Karnataka 560074, India,
E-Mail:-[email protected]


Abstract

The inhibition performance of atenolol on Aluminium-2014 in 1 M Acetic Acid solution was studied by weight loss and electrochemical methods. The results show the inhibition efficiency was found to increase with increasing the concentration of the inhibitor from 50 to 300 ppm. The maximum inhibition efficiency 93.8% was observed in the presence of 300 ppm inhibitor (in case of potentiodynamic polarization). The inhibition action of atenolol was explained in terms of adsorption on the Aluminium-2014 surface. Electrochemical Impedance spectroscopic technique (EIS) exhibits one capacitive loop indicating that, the corrosion reaction is controlled by charge transfer process. Polarization measurements showed that the inhibitor is of a mixed type. The results obtained from the different methods are in good agreement. The surface morphologies of Aluminium-2014 were examined by scanning electron microscope (SEM).

Keywords

Corrosion, Olive leaf, Aluminium-2014, Acetic Acid, Electrochemical studies.
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