Evaluation of inhibitive corrosion potential of symmetrical hydrazine derivatives containing nitrophenyl moiety in 1M HCl for C38 steel: experimental and theoretical studies

Zouhair Lakbaibi; Mohamed Damej; Abdu Molhi; Mohammed Benmessaoud; Said Tighadouini; Adil Jaafar; Tariq Benabbouha; Abdeselam Ansari; Anas Driouich; Mohamed Tabyaoui

doi:10.1016/j.heliyon.2022.e09087

Evaluation of inhibitive corrosion potential of symmetrical hydrazine derivatives containing nitrophenyl moiety in 1M HCl for C38 steel: experimental and theoretical studies

Heliyon. 2022 Mar 15;8(3):e09087. doi: 10.1016/j.heliyon.2022.e09087. eCollection 2022 Mar.

Authors

Affiliations

¹ Laboratory of Molecular Chemistry, Materials and Environment, Department of Chemistry, Multidisciplinary Faculty, Mohamed first University, BP 300 Selouane 62700, Nador, Morocco.
² Environment, Materials and Sustainable Development Team-CERNE2D, High School of Technology, Mohammed V University, Rabat, Morocco.
³ Laboratory of Spectroscopy, Molecular Modelling Materials, Nanomaterials Water and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco.
⁴ Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University, EL Jadida Road, Km 2, BP: 5366, Casablanca, Morocco.
⁵ Higher School of Education and Training of Berrechid, Hassan 1 University Settat, Morocco.
⁶ Thermodynamic, Catalysis and Surface Team, Faculty of Sciences, Chouaib Doukkali University, BP:24 000, El Jadida, Morocco.
⁷ Regional Center for Education and Training Professions, Al Mouzdalifa Street, Marrakech 40000, Morocco.
⁸ Laboratory of chemical engineering and environment, Faculty of Sciences and Techniques, Hassan II University, Mohammedia, Morocco.
⁹ Laboratory of Materials, Nanoparticles and Environment, Mohammed V University, Faculty of Sciences, BP 1014, Ibn Batouta Avenue, Rabat, Morocco.

Abstract

The exploitation of cost-effective, sustainable, green and efficient compounds is a renewed science and a demanding mission for today's chemists and technologists. In this view, the inhibitive corrosion properties of some hydrazine derivatives named (1E,2E)-bis(1-(2-nitrophenyl)ethylidene)hydrazine (SSBO), (1E,2E)-bis(1-(3-nitrophenyl)ethylidene)hydrazine (SSBM) and (1E,2E)-bis(1-(4-nitrophenyl)ethylidene)hydrazine (SSBP) on the C38 steel corrosion in 1M HCl media has been evaluated by different techniques like electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy. The EIS results showed that SSBM is the greatest inhibitor ( $η > 93$ %) among the three tested compounds. The SSBM gives considerable inhibition efficiency against corrosion of steel compared to the previous studies. The PDP curves indicated that the studied inhibitors were a mixed-type inhibitor with a predominantly cathodic control. Quantum calculations of some descriptors derived from the density functional theory (DFT), the transition state theory (TST), the quantum theory of atoms in molecules (QTAIM) and molecular dynamics simulation have delivered helpful information regarding electron transfer and mechanism during adsorption of inhibitors on C38 steel surface.

Keywords: C38 steel corrosion; DFT; Green; Hydrazine derivatives; Molecular dynamics simulation; Nitrophenyl; QTAIM.