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New Benzimidazole Derivatives as Corrosion Inhibitors for Carbon Steel in HCl Solution

Product Number: 51315-5941-SG
ISBN: 5941 2015 CP
Author: Ime Obot
Publication Date: 2015
$0.00
$20.00
$20.00
The corrosion inhibition behaviour of two new benzimidazole derivatives namely 2-(2-Bromophenyl)-1H-benzimidazole (BPBA) and 2-(2-Bromophenyl)-H-benzimidazole (BPMA) on carbon stee (CS) in 0.5 M HCl solution was investigated using electrochemical methods such as potentiodynamic polarization sweeps (Tafel plots) and electrochemical impedance spectroscopy (EIS). Scanning electron microscopy (SEM) attenuated total reflectance Fourier transformed infrared spectroscopy (ATR-FTIR) x-ray photoelectron spectroscopy (XPS) and contact angle techniques were carried out to established the inhibitive properties of BPBA and BPMA on carbonsteel. Computer simulations using density functional theory (DFT) was further employed to provide further insights into the mechanism of electron transfer from the inhibitors to the steel surface. All the results confirmed that BPBA and BPMA are effective corrosion inhibitors for carbonsteel. BPMA showed improve inhibition efficiency than BPBA which has been validated using experimental and theoretical approaches.Keywords: Carbon steel EIS Polarization benzimidazoles HCl DFT
The corrosion inhibition behaviour of two new benzimidazole derivatives namely 2-(2-Bromophenyl)-1H-benzimidazole (BPBA) and 2-(2-Bromophenyl)-H-benzimidazole (BPMA) on carbon stee (CS) in 0.5 M HCl solution was investigated using electrochemical methods such as potentiodynamic polarization sweeps (Tafel plots) and electrochemical impedance spectroscopy (EIS). Scanning electron microscopy (SEM) attenuated total reflectance Fourier transformed infrared spectroscopy (ATR-FTIR) x-ray photoelectron spectroscopy (XPS) and contact angle techniques were carried out to established the inhibitive properties of BPBA and BPMA on carbonsteel. Computer simulations using density functional theory (DFT) was further employed to provide further insights into the mechanism of electron transfer from the inhibitors to the steel surface. All the results confirmed that BPBA and BPMA are effective corrosion inhibitors for carbonsteel. BPMA showed improve inhibition efficiency than BPBA which has been validated using experimental and theoretical approaches.Keywords: Carbon steel EIS Polarization benzimidazoles HCl DFT
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