Chemical, Electrochemical and Quantum Chemical Studies for Famotidine Drug as a Safe Corrosion Inhibitor for α-Brass in HCl Solution
| Autor: | Abd El-Aziz S. Fouda, A. El-Hossiany, R. E. Ahmed |
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| Rok vydání: | 2021 |
| Předmět: |
Tafel equation
Materials science Scanning electron microscope Organic Chemistry Metals and Alloys Electrochemistry Surfaces Coatings and Films Corrosion Famotidine Corrosion inhibitor chemistry.chemical_compound chemistry Materials Chemistry medicine Fourier transform infrared spectroscopy Polarization (electrochemistry) medicine.drug Nuclear chemistry |
| Zdroj: | Protection of Metals and Physical Chemistry of Surfaces. 57:398-411 |
| ISSN: | 2070-206X 2070-2051 |
| Popis: | Expired Famotidine was tested as a corrosion protection for α-brass in 1 M HCl using modified methods: weight loss (WL), Tafel polarization (TP), AC impedance spectra (EIS) and electrochemical frequency modulation (EFM). The polarization resistance (Rp) data increased with increasing famotidine dose. The inhibition efficiency (IE) improved with raising famotidine concentration. The maximum IE of 90% has been achieved at 300 ppm. On the other hand, the efficiency lowered with temperature increased. The outcome data obtained revealed that famotidine performed excellently as a corrosion inhibitor for α‑brass in this medium at dissimilar temperatures. The surface of α-brass was tested utilizing scanning electron microscope (SEM), energy dispersion spectroscopy X-ray spectra (EDX), Fourier transform infrared spectroscopy (FT–IR), and atomic force microscopy (AFM analysis). |
| Databáze: | OpenAIRE |
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