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Corrosion inhibition performance of 2-fluorophenyl-2, 5 dithiohydrazodicarbonamide for copper in 3.5% NaCl Media: Experimental and Monte Carlo insights   
Yazarlar
Mothana Ghazi Kadhim
Murat Saraçoğlu
Türkiye
Mehmet İzzettin Yılmazer
Türkiye
Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye
Özet
Most industries struggle with corrosion. Corrosion inhibitors are needed in these sectors. Eco-friendly corrosion inhibitors should be effective even at low concentrations. In this work, the compound 2-Fluorophenyl-2, 5-dithiohydrazodicarbonamide (2F-TSC) was utilized as a corrosion inhibitor for copper in a 3.5% NaCl solution. The inhibitor efficiency was calculated by using a series of electrochemical methods like, open circuit potential (OCP), potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS). All tests have been done in a stagnant condition. The results show that the compound 2F-TSC looked to be of mixed type. Furthermore, the maximum inhibitor efficiency was reached at 99.2% at 10-2 M 2F-TSC and 5 h. The adsorption of 2F-TSC on the copper surface in 3.5% NaCl obeyed the Langmuir isotherm with a negative value of the standard Gibbs free energy of adsorption of-35.4 kJ/mol (chemisorption and physisorption). SEM, EDX, and AFM confirmed the presence of 2F-TSC on the surface of copper. The adsorption of the inhibitor molecules on the Cu (111) surface was further verified by a Monte Carlo simulation study. The results approved that the 2F-TSC can be utilized as a corrosion inhibitor for copper in an aggressive solution (3.5% NaCl).
Anahtar Kelimeler
Copper | Corrosion resistance | EIS | Langmuir | Monte Carlo simulation
Makale Türü Özgün Makale
Makale Alt Türü Diğer hakemli uluslarası dergilerde yayımlanan tam makale
Dergi Adı Al-Qadisiyah Journal for Engineering Sciences
Dergi ISSN 2411-7773
Dergi Tarandığı Indeksler Doaj
Makale Dili Türkçe
Basım Tarihi 01-2023
Doi Numarası 10.30772/qjes.v16i3.972