TY - JOUR
T1 - N-(4-Chloromethylbenzyl)-N, N-dimethyldodecan-1-aminium Chloride: A Quaternary Ammonium Surfactant as Corrosion Inhibitor
AU - Yaagoob, I.Y.
AU - Goni, L.K.M.O.
AU - Verma, C.
AU - Mazumder, M.A.J.
AU - Ali, S.A.
N1 - Export Date: 11 January 2024; Cited By: 0; Correspondence Address: M.A.J. Mazumder; Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia; email: [email protected]; S.A. Ali; Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia; email: [email protected]
PY - 2023
Y1 - 2023
N2 - This study used a quaternary surfactant, N-(4-Chloromethylbenzyl)-N, N-dimethyldodecan-1-aminium chloride (CMBDAC), as an excellent corrosion inhibitor of C1018 carbon steel (C1018 CS) in harsh 15 % HCl acidizing condition. CMBDAC was synthesized with an excellent yield and characterized by NMR, FTIR, and TGA. Gravimetric weight loss (WL), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) studies were employed to measure the efficacy of CMBDAC. At a relatively low concentration of 15 ppm, CMBDAC surpassed 90 % inhibition efficiency, with a maximum inhibition efficiency of 99.25 % being reached just for 50 ppm of CMBDAC. The inhibitor showed an efficacy of 96.16 % even at a temperature of 60 °C via the WL technique, showing potential to be used as a high-temperature corrosion inhibitor. The adsorption isotherm study revealed that CMBDAC followed Langmuir adsorption isotherm. The Gibbs free energy of adsorption ((Figure presented.) was calculated to be −40.43 kJ mol−1, indicating that CMBDAC was adsorbed via chemisorption. A very high value (1.68×105 L mol−1) of equilibrium constant ((Figure presented.)) suggested very strong adsorption of the inhibitor. PDP study disclosed that CMBDAC acted as a mixed-type inhibitor. SEM-EDX study demonstrated the adsorption of CMBDAC on the C1018 surface. Different DFT-optimized parameters have been discussed in detail to support the superb inhibitory action indicated by CMBDAC. © 2023 Wiley-VCH GmbH.
AB - This study used a quaternary surfactant, N-(4-Chloromethylbenzyl)-N, N-dimethyldodecan-1-aminium chloride (CMBDAC), as an excellent corrosion inhibitor of C1018 carbon steel (C1018 CS) in harsh 15 % HCl acidizing condition. CMBDAC was synthesized with an excellent yield and characterized by NMR, FTIR, and TGA. Gravimetric weight loss (WL), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) studies were employed to measure the efficacy of CMBDAC. At a relatively low concentration of 15 ppm, CMBDAC surpassed 90 % inhibition efficiency, with a maximum inhibition efficiency of 99.25 % being reached just for 50 ppm of CMBDAC. The inhibitor showed an efficacy of 96.16 % even at a temperature of 60 °C via the WL technique, showing potential to be used as a high-temperature corrosion inhibitor. The adsorption isotherm study revealed that CMBDAC followed Langmuir adsorption isotherm. The Gibbs free energy of adsorption ((Figure presented.) was calculated to be −40.43 kJ mol−1, indicating that CMBDAC was adsorbed via chemisorption. A very high value (1.68×105 L mol−1) of equilibrium constant ((Figure presented.)) suggested very strong adsorption of the inhibitor. PDP study disclosed that CMBDAC acted as a mixed-type inhibitor. SEM-EDX study demonstrated the adsorption of CMBDAC on the C1018 surface. Different DFT-optimized parameters have been discussed in detail to support the superb inhibitory action indicated by CMBDAC. © 2023 Wiley-VCH GmbH.
KW - Acidization
KW - Corrosion inhibition
KW - Langmuir isotherm
KW - Mixed-type inhibitor
KW - Surfactant inhibitor
U2 - 10.1002/slct.202301913
DO - 10.1002/slct.202301913
M3 - Article
SN - 2365-6549
VL - 8
JO - ChemistrySelect
JF - ChemistrySelect
IS - 38
ER -