Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution

Effect of inhibitor concentration on the potency of Stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution was purposefully undertaken in order to explore and unearth the worthiness of the extract as a potent green inhibitor. The study was accomplished using we...

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Main Authors: Okiemute Dickson Ofuyekpone, Ochuko Goodluck Utu, Basil O. Onyekpe, Adeolu Adesoji Adediran
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:Scientific African
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468227621000181
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author Okiemute Dickson Ofuyekpone
Ochuko Goodluck Utu
Basil O. Onyekpe
Adeolu Adesoji Adediran
author_facet Okiemute Dickson Ofuyekpone
Ochuko Goodluck Utu
Basil O. Onyekpe
Adeolu Adesoji Adediran
author_sort Okiemute Dickson Ofuyekpone
collection DOAJ
description Effect of inhibitor concentration on the potency of Stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution was purposefully undertaken in order to explore and unearth the worthiness of the extract as a potent green inhibitor. The study was accomplished using weight loss and potentiodynamic polarization methods. It was observed that the potency of the extract increased with increasing concentration up to an optimum concentration of 1.2g/L after which the inhibitor became negative in approach. Potentiodynamic polarization parameters behaved in such a manner that affirmed that the extract is a potent green inhibitor against the corrosion of alloys 304L in the stated sulphuric acid solution. Calculated value of the change in corrosion potential showed that the action of the inhibitor is a mixed type. Both the weight loss and potentiodynamic polarization methods identified 1.2g/L as the optimum concentration.
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spelling doaj.art-bdc2f46daf2a409eadb9cb175571764a2022-12-21T22:00:20ZengElsevierScientific African2468-22762021-03-0111e00714Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solutionOkiemute Dickson Ofuyekpone0Ochuko Goodluck Utu1Basil O. Onyekpe2Adeolu Adesoji Adediran3Department of Metallurgical Engineering, Delta State Polytechnic, Ogwashi-Uku, Delta P.M.B 1030, Nigeria; Corresponding author.Department of Welding and Fabrication, Delta State Polytechnic, Ogwashi-Uku, Delta P.M.B 1030, NigeriaDepartment of Mechanical Engineering, University of Benin, P.M.B 1154, Benin City, Edo, NigeriaDepartment of Mechanical Engineering, Landmark University, Omu-Aran, Kwara PMB 1001, Nigeria; Landmark University SDG 9 (Industry, Innovation and Infrastructure Research Group)Effect of inhibitor concentration on the potency of Stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution was purposefully undertaken in order to explore and unearth the worthiness of the extract as a potent green inhibitor. The study was accomplished using weight loss and potentiodynamic polarization methods. It was observed that the potency of the extract increased with increasing concentration up to an optimum concentration of 1.2g/L after which the inhibitor became negative in approach. Potentiodynamic polarization parameters behaved in such a manner that affirmed that the extract is a potent green inhibitor against the corrosion of alloys 304L in the stated sulphuric acid solution. Calculated value of the change in corrosion potential showed that the action of the inhibitor is a mixed type. Both the weight loss and potentiodynamic polarization methods identified 1.2g/L as the optimum concentration.http://www.sciencedirect.com/science/article/pii/S2468227621000181Stylosanthes gracilisWeight losspolarizationSulphuric acid solutionOptimum concentrationGC/MS
spellingShingle Okiemute Dickson Ofuyekpone
Ochuko Goodluck Utu
Basil O. Onyekpe
Adeolu Adesoji Adediran
Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
Scientific African
Stylosanthes gracilis
Weight loss
polarization
Sulphuric acid solution
Optimum concentration
GC/MS
title Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
title_full Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
title_fullStr Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
title_full_unstemmed Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
title_short Effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for AISI 304l in sulphuric acid solution
title_sort effect of inhibitor concentration on the potency of stylosanthes gracilis extract as corrosion inhibitor for aisi 304l in sulphuric acid solution
topic Stylosanthes gracilis
Weight loss
polarization
Sulphuric acid solution
Optimum concentration
GC/MS
url http://www.sciencedirect.com/science/article/pii/S2468227621000181
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