Electrochemical and Surface Characterization Studies of 2-amino-6-methyl-5-oxo-4-phenyl-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carbonitrile Compound on Copper in 2 M HNO<sub>3</sub> — Oak Academic Publishing
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Electrochemical and Surface Characterization Studies of 2-amino-6-methyl-5-oxo-4-phenyl-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carbonitrile Compound on Copper in 2 M HNO<sub>3</sub>
Engineering Chemistry Department, High Institute of Engineering & Technology, New Damietta, Egypt
,
Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
,
Evaluation and Analytical Department, Egyptian Petroleum Research Institute, Cairo, Egypt
,
Physics Department, The University College in Al-Qunfudah, Umm Al-Qura University, Mecca, KSA
,
Chemistry Department, Al-Qunfudah University College, Umm Al-Qura University, Mecca, KSA
,
Faculty of Science and Arts, Chemistry Department, Najran University, Najran, KSA
1 Engineering Chemistry Department, High Institute of Engineering & Technology, New Damietta, Egypt
2 Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
3 Evaluation and Analytical Department, Egyptian Petroleum Research Institute, Cairo, Egypt
4 Physics Department, The University College in Al-Qunfudah, Umm Al-Qura University, Mecca, KSA
The corrosion hindrance of Cu in 2.0 M HNO 3 solution by 2-amino-6-methyl-5-oxo-4-phenyl-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carbonitrile compound has been studied, using Potentiodynamic Polarization (PP), AC Impedance (EIS), Electrochemical Frequency Modulation (EFM) techniques. Also, EIS test was utilized to confirm the corrosion protection mechanism. 2-amino-6-methyl-5-oxo-4-phenyl-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carbonitrile compound is suggested as a mixed kind inhibitor. SEM and EDX investigations of the Cu in 2.0 M HNO 3 surface revealed that assembles protect Cu from corrosion by adsorption on its surfaces by a forming coating film. Clearly, the assembled mechanisms play a role as a barrier to corrosive solution.
KeywordsCarbonitrileCuSEMEDXEISEFM
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