Dry and wet lab analysis on benzofused heterocyclic compounds as effective corrosion inhibitors for mild steel in acidic medium
Journal of Industrial and Engineering Chemistry, ISSN: 1226-086X, Vol: 40, Page: 106-117
2016
- 59Citations
- 32Captures
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Article Description
The influence of two benzofused heterocyclic compounds, namely 2-phenylquinazolin-4(3 H )-one(PQO) and 2-phenyl-4 H -benzo[ d ]oxazin-4-one(POO) in controlling mild steel corrosion in 1 M H 2 SO 4 solution was investigated using gravimetric and electrochemical methods. The experimental results revealed that both the inhibitors inhibit corrosion and their inhibition efficiency follows the order PQO > POO. A mixed mode of inhibition from polarization and a charge transfer mechanism from impedance study in the absence and presence of inhibitors were found. The passive film formed on the mild steel surface was characterized using SEM-EDX. Quantum chemical parameters derived using DFT performed at B3LYP/6-31G(d, p) level were used to correlate the molecular structure.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1226086X16301587; http://dx.doi.org/10.1016/j.jiec.2016.06.013; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84977657238&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S1226086X16301587; https://dx.doi.org/10.1016/j.jiec.2016.06.013
Elsevier BV
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