Corrosion Inhibition and Adsorption Properties of <i>N</i>-{2-[2-(5-Methyl-1<i>H</i>-pyrazol-3-yl)acetamido]phenyl}benzamide Monohydrate on C38 Steel in 1 M HCl: Insights from Electrochemical Analysis, DFT, and MD Simulations.

ABSTRACT: The heterocyclic compound N-{2-[2-(5-methyl-1H-pyrazol-3-yl)acetamido]-phenyl}benzamide monohydrate (MPAPB) was synthesized and structurally characterized by using nuclear magnetic resonance (NMR), mass spectrometry, and infrared (IR) spectroscopy. Its corrosion inhibition performance for C38 in 1 M HCl was evaluated by using gravimetric weight loss measurements, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) techniques. MPAPB demonstrated a high inhibition efficiency of 90.2% at a concentration of 1 mM, accompanied by a substantial decrease in the corrosion current density. Electrochemical results revealed that MPAPB acts as a mixed-type inhibitor, reducing both anodic and cathodic reactions, while increasing the charge transfer resistance (

SUBMITTER: Azgaou K 

PROVIDER: S-EPMC11840609 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature