CORROSION INHIBITION BEHAVIOR OF BENZOTHIAZINE DERIVATIVE ON LOW CARBON STEEL IN ACID MEDIUM: ADSORPTION AND QUANTUM CHEMICAL INVESTIGATIONS
Venkatesan Hemapriya,
Ill-Min Chung,
Kandasamy Parameswari,
Subramanian Chitra,
Seung-Hyun Kim and
Mayakrishnan Prabakaran ()
Additional contact information
Venkatesan Hemapriya: Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641 004, Tamil Nadu, India
Ill-Min Chung: #x2020;Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea
Kandasamy Parameswari: Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641 004, Tamil Nadu, India
Subramanian Chitra: Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641 004, Tamil Nadu, India
Seung-Hyun Kim: #x2020;Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea
Mayakrishnan Prabakaran: #x2020;Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea
Surface Review and Letters (SRL), 2019, vol. 26, issue 10, 1-11
Abstract:
The inhibitive performance of 2-[(5-phenyl-1,3,4-oxdiazol-2-yl)methyl]-2H-benzo[b] [1,4] thiazin-3-one (POBT) for low carbon steel corrosion in 1 M H2SO4 has been evaluated by non-electrochrmical, and electrochemical measurements. Efficiency of the inhibitor enhanced with inhibitor concentration and declined with rise in temperature. 92.39% inhibition efficiency was attained using 0.1mM of POBT. Anticorrosive effect of the inhibitor is owing to the adsorption of POBT molecules on the metal surface. Mono layer adsorption of inhibitor was favored by observing the best fit with Langmuir isotherm. Polarization measurements reveal that the inhibitor behaves as mixed type. Surface analysis by scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDX) confirm the existence of a protective film of POBT on low carbon steel surface. Quantum chemical parameters obtained using density functional theory (DFT) method complements the above results.
Keywords: Benzothiazines; corrosion; Langmuir isotherm; polarization; computational studies (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations:
Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X19500665
Access to full text is restricted to subscribers
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:26:y:2019:i:10:n:s0218625x19500665
Ordering information: This journal article can be ordered from
DOI: 10.1142/S0218625X19500665
Access Statistics for this article
Surface Review and Letters (SRL) is currently edited by S Y Tong
More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().