Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media
Acid extract of Solanum tuberosum was tested as corrosion inhibitor for mild steel in 1 M HCl and H2SO4 media using different techniques: Weight loss (in different temperatures viz., 303, 313 and 323 K), Potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS) and SEM techniques. T...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2009-03-01
|
Series: | Iranian Journal of Chemistry & Chemical Engineering |
Subjects: | |
Online Access: | http://www.ijcce.ac.ir/article_6918_8b6d5947593ee8b9ff45f5edcdbf0657.pdf |
id |
doaj-891db34af58a4d85be7b50c55f7e0864 |
---|---|
record_format |
Article |
spelling |
doaj-891db34af58a4d85be7b50c55f7e08642020-11-25T03:34:49ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering 1021-99861021-99862009-03-0128177846918Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid MediaBothi Raja Pandian0Mathur Sethuraman1Department of Chemistry, Gandhigram Rural University, Gandhigram, 624 302, Tamil Nadu, INDIADepartment of Chemistry, Gandhigram Rural University, Gandhigram, 624 302, Tamil Nadu, INDIAAcid extract of Solanum tuberosum was tested as corrosion inhibitor for mild steel in 1 M HCl and H2SO4 media using different techniques: Weight loss (in different temperatures viz., 303, 313 and 323 K), Potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS) and SEM techniques. The studies reveal that the plant extract act as good inhibitors in both the acid media and better in H2SO4 medium. Tafel polarization method indicated that the plant extract behaves as mixed mode inhibitor. Double layer capacitance and charge transfer resistance values derived from Nyquist plots obtained from AC impedance studies give supporting evidence for the anticorrosive effects of these plants. The inhibitive effect may be attributed to the adsorption of the inhibitor on the surface of MS following Temkin adsorption isotherm. Increase of inhibition efficiency with increase of temperature along with Ea values serve as proof for chemisorption. SEM studies provide the confirmatory evidence for the protection of MS by the green inhibitor. The study reveals the potential of the plantextract for combatingcorrosionwhich maybedue to the adsorption of alkaloids and other phytoconstituents.http://www.ijcce.ac.ir/article_6918_8b6d5947593ee8b9ff45f5edcdbf0657.pdfsolanum tuberosumcorrosion inhibitorelectrochemical studieschemisorptionsem |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bothi Raja Pandian Mathur Sethuraman |
spellingShingle |
Bothi Raja Pandian Mathur Sethuraman Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media Iranian Journal of Chemistry & Chemical Engineering solanum tuberosum corrosion inhibitor electrochemical studies chemisorption sem |
author_facet |
Bothi Raja Pandian Mathur Sethuraman |
author_sort |
Bothi Raja Pandian |
title |
Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media |
title_short |
Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media |
title_full |
Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media |
title_fullStr |
Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media |
title_full_unstemmed |
Solanum Tuberosum as an Inhibitor of Mild Steel Corrosion in Acid Media |
title_sort |
solanum tuberosum as an inhibitor of mild steel corrosion in acid media |
publisher |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
series |
Iranian Journal of Chemistry & Chemical Engineering |
issn |
1021-9986 1021-9986 |
publishDate |
2009-03-01 |
description |
Acid extract of Solanum tuberosum was tested as corrosion inhibitor for mild steel in 1 M HCl and H2SO4 media using different techniques: Weight loss (in different temperatures viz., 303, 313 and 323 K), Potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS) and SEM techniques. The studies reveal that the plant extract act as good inhibitors in both the acid media and better in H2SO4 medium. Tafel polarization method indicated that the plant extract behaves as mixed mode inhibitor. Double layer capacitance and charge transfer resistance values derived from Nyquist plots obtained from AC impedance studies give supporting evidence for the anticorrosive effects of these plants. The inhibitive effect may be attributed to the adsorption of the inhibitor on the surface of MS following Temkin adsorption isotherm. Increase of inhibition efficiency with increase of temperature along with Ea values serve as proof for chemisorption. SEM studies provide the confirmatory evidence for the protection of MS by the green inhibitor. The study reveals the potential of the plantextract for combatingcorrosionwhich maybedue to the adsorption of alkaloids and other phytoconstituents. |
topic |
solanum tuberosum corrosion inhibitor electrochemical studies chemisorption sem |
url |
http://www.ijcce.ac.ir/article_6918_8b6d5947593ee8b9ff45f5edcdbf0657.pdf |
work_keys_str_mv |
AT bothirajapandian solanumtuberosumasaninhibitorofmildsteelcorrosioninacidmedia AT mathursethuraman solanumtuberosumasaninhibitorofmildsteelcorrosioninacidmedia |
_version_ |
1724557299527188480 |