Comprehensive evaluation of synthesized dual-headed Gemini ionic liquids as protective inhibitors for carbon steel in aerated 3.0 M HCl: electrochemical and theoretical approaches.

ABSTRACT: Carbon steel readily corrodes in acidic environments, particularly in HCl, where corrosion severity depends on acid concentration, exposure time, and temperature. In this study, three novel ionic liquid-based Gemini cationic surfactants were synthesized and structurally characterized using various spectroscopic techniques. Their effectiveness as corrosion inhibitors for carbon steel in aerated 3.0 M HCl was evaluated via weight-loss measurements across multiple temperatures, potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS). The surfactants exhibited excellent inhibition performance, with GSE-12 achieving up to 98.00% efficiency. EIS results in the presence of GSE revealed a two-time constant (R _S-2RC) response, indicating protect

SUBMITTER: Abdel-Hameed R 

PROVIDER: S-EPMC12911663 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature