Multidimensional insights of electrochemical and quantum investigations of morpholinium cationic surfactants as corrosion inhibitors for carbon steel in acidic solution.

ABSTRACT: Three novel morpholinium-cationic surfactants (coded: DCSM-8, DCSM-10, and DCSM-12) with chemical structure confirmed via FT-IR, HNMR, and mass analysis were applied for carbon steel (CS) corrosion control in acidic 4 M HCl solution. The investigated compounds decreased water surface tension (72 mN.m^-1) to 19.85 mN.m^-1 after the addition of DCSM-12. The surfactants mitigation performance was assessed via weight loss (W_L), potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The synthesized surfactants protected CS efficiently with higher inhibition efficiencies up to 97.029% at 1 × 10^-3 M for DCSM-12 using PDP which also indicated that, the prepared surfactants inhibited both CS anodic and cathodic sites with catho

SUBMITTER: Elaraby A 

PROVIDER: S-EPMC12181321 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature