TY - JOUR
T1 - Promising organoselenium corrosion inhibitors for C1018-steel in hydrochloric acid environments
AU - Shaaban, Saad
AU - Shalabi, Kamal
AU - Yousef, Tarek A.
AU - Abou-Krisha, Mortaga
AU - Alanazi, Abdulaziz A.
AU - Althikrallah, Hanan A.
AU - Alaasar, Mohamed
AU - Abu-Dief, Ahmed M.
AU - Al-Janabi, Ahmed S.M.
N1 - Publisher Copyright:
© 2024 Taiwan Institute of Chemical Engineers
PY - 2024/12
Y1 - 2024/12
N2 - Background: Novel organoselenium (OSe) corrosion inhibitors, namely 2-(((4-(benzylselanyl)phenyl)imino)methyl)-5-nitrophenol (BSeOH) and its Ni (II) chelate [Ni(BSeO)2(H2O)2] were synthesized in 90 % and 88 % yields, respectively. Their chemical structures were characterized using different spectroscopic tools. Methods: The corrosion inhibition efficiency was investigated toward C1018-steel in 1.0 M HCl solutions using potentiodynamic polarization, impedance spectroscopy, X-ray photoelectron spectroscopy, density functional theory, and Monte Carlo simulations. Several quantum chemical parameters were calculated using Density Functional Theory at the B3LYP/6–31G* computational model to elucidate the inhibitory activity of the compounds. Significant findings: Electrochemical data showed that [Ni(BSeO)2(H2O)2] has more protection efficiency (96.4 %) compared to its ligand BSeOH (93.4 %) at 15.0 × 10−6 M. In addition, the corrosion current density (icor) decreases (245.96 to 8.96 µAcm−2), the charge transfer resistance (Rct) increases (95.15 to 1926.70 Ω cm2), and the admittance (Y0) decreases (173.87 to 18.07 μΩ−1 sn cm−2) with the inhibitors’ dosage indication the formation of a protective adsorbed layer on the steel surface. Furthermore, the BSeOH and [Ni(BSeO)2(H2O)2] inhibitors were spontaneously adsorbed on the steel surface, adhering to the Langmuir isotherm. Moreover, the electrochemical and theoretical results showed that these inhibitors were effectively adsorbed on the C1018-steel surface as a preventive layer. Collectively, the utilization of OSe agents as corrosion inhibitors is a novel approach that combines several advantageous characteristics, including improved efficiency, unique chemical properties, multiple inhibition mechanisms, and the potential for derivatization. Therefore, OSe inhibitors hold significant promise in the field of corrosion prevention and further studies are highly required to develop a more substantial strategy to fight corrosion by applying OSe compounds.
AB - Background: Novel organoselenium (OSe) corrosion inhibitors, namely 2-(((4-(benzylselanyl)phenyl)imino)methyl)-5-nitrophenol (BSeOH) and its Ni (II) chelate [Ni(BSeO)2(H2O)2] were synthesized in 90 % and 88 % yields, respectively. Their chemical structures were characterized using different spectroscopic tools. Methods: The corrosion inhibition efficiency was investigated toward C1018-steel in 1.0 M HCl solutions using potentiodynamic polarization, impedance spectroscopy, X-ray photoelectron spectroscopy, density functional theory, and Monte Carlo simulations. Several quantum chemical parameters were calculated using Density Functional Theory at the B3LYP/6–31G* computational model to elucidate the inhibitory activity of the compounds. Significant findings: Electrochemical data showed that [Ni(BSeO)2(H2O)2] has more protection efficiency (96.4 %) compared to its ligand BSeOH (93.4 %) at 15.0 × 10−6 M. In addition, the corrosion current density (icor) decreases (245.96 to 8.96 µAcm−2), the charge transfer resistance (Rct) increases (95.15 to 1926.70 Ω cm2), and the admittance (Y0) decreases (173.87 to 18.07 μΩ−1 sn cm−2) with the inhibitors’ dosage indication the formation of a protective adsorbed layer on the steel surface. Furthermore, the BSeOH and [Ni(BSeO)2(H2O)2] inhibitors were spontaneously adsorbed on the steel surface, adhering to the Langmuir isotherm. Moreover, the electrochemical and theoretical results showed that these inhibitors were effectively adsorbed on the C1018-steel surface as a preventive layer. Collectively, the utilization of OSe agents as corrosion inhibitors is a novel approach that combines several advantageous characteristics, including improved efficiency, unique chemical properties, multiple inhibition mechanisms, and the potential for derivatization. Therefore, OSe inhibitors hold significant promise in the field of corrosion prevention and further studies are highly required to develop a more substantial strategy to fight corrosion by applying OSe compounds.
KW - Carbon steel
KW - Corrosion inhibition
KW - Density functional theory
KW - Organoselenium
KW - Schiff bases
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=85203816681&partnerID=8YFLogxK
U2 - 10.1016/j.jtice.2024.105766
DO - 10.1016/j.jtice.2024.105766
M3 - Article
AN - SCOPUS:85203816681
SN - 1876-1070
VL - 165
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
M1 - 105766
ER -