Comprehensive structural insights and electrochemical evaluation of rhamnose and salicin for green corrosion protection of carbon steel in acidic medium.

ABSTRACT: This study presents a comprehensive electrochemical and theoretical evaluation of two naturally occurring organic compounds, Rhamnose and Salicin, as green corrosion inhibitors for carbon steel in 1 M HCl. Electrochemical techniques including Potentiodynamic Polarization (PDP), Electrochemical Impedance Spectroscopy (EIS), and Electrochemical Frequency Modulation (EFM) were employed to assess inhibition performance. At a concentration of 1.0 × 10^-3 M, Salicin achieved a maximum inhibition efficiency of 96.10%, while Rhamnose reached 91.91%, as determined by PDP. EIS analysis revealed a significant increase in charge transfer resistance (R _ct) from 19.05 Ω cm² (blank) to 172.27 Ω cm² for Salicin and 121.65 Ω cm² for Rhamnose. The

SUBMITTER: Al-Odail F 

PROVIDER: S-EPMC12505490 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature