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Chemical, Electrochemical and Quantum Chemical Studies for Famotidine Drug as a Safe Corrosion Inhibitor for α-Brass in HCl Solution
Protection of Metals and Physical Chemistry of Surfaces ( IF 1.1 ) Pub Date : 2021-05-15 , DOI: 10.1134/s207020512101010x
A. S. Fouda , R. E. Ahmed , A. El-Hossiany

Abstract

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).



中文翻译:

法莫替丁药物作为HCl溶液中α-黄铜的安全缓蚀剂的化学,电化学和量子化学研究

摘要

使用改良的方法对过期的法莫替丁进行1M HCl中的α-黄铜腐蚀防护测试:重量损失(WL),Tafel极化(TP),AC阻抗谱(EIS)和电化学频率调制(EFM)。极化电阻(R p)数据随着法莫替丁剂量的增加而增加。抑制效率(IE)随法莫替丁浓度的升高而提高。在300 ppm时已达到90%的最大IE。另一方面,效率随温度升高而降低。获得的结果数据表明,法莫替丁在不同温度下在该介质中作为α-黄铜的腐​​蚀抑制剂表现出色。利用扫描电子显微镜(SEM),能量色散光谱X射线光谱(EDX),傅立叶变换红外光谱(FT-IR)和原子力显微镜(AFM分析)对α-黄铜的表面进行了测试。

更新日期:2021-05-17
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