Adsorption study of N (-benzo[d]thiazol-2-yl)-1-(thiophene-2-yl) methanimine at mild steel/aqueous H2SO4 interface


Singh A. K. , Singh M., Thakur S., Pani B., KAYA S. , EL Ibrahimi B., ...More

SURFACES AND INTERFACES, vol.33, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33
  • Publication Date: 2022
  • Doi Number: 10.1016/j.surfin.2022.102169
  • Title of Journal : SURFACES AND INTERFACES
  • Keywords: Microwave, Electrophilicity, AFM, EIS, Polarization, Molecular orbital analysis, 1 M HCL, MICROWAVE-ASSISTED SYNTHESIS, CARBON-STEEL CORROSION, SCHIFF-BASES, ANTITUBERCULAR ACTIVITY, INHIBITION, DERIVATIVES, SURFACE, BEHAVIOR, PERFORMANCE

Abstract

This study reports microwave (MW) assisted synthesis of N (-benzo[d]thiazol-2-yl)-1-(thiophene-2-yl) methanimine (BTTM) in reasonably good yield and purity. The synthesized compound (BTTM) has been characterized by elemental analysis, IR and 1H NMR spectroscopy and examined for its corrosion inhibition activity for mild steel in aqueous H2SO4 medium using gravimetric and different electrochemical methods. The corrosion inhibition study was also performed at different temperatures to understand the effect of temperature on corrosion inhibiting potential of BTTM. The metal protecting ability of BTTM in acid solution was further examined by surface analyses; X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and contact angle measurement. The surface analyses reveal that the BTTM adsorbed on mild steel (MS) surface following ElAwady isotherm. Theoretical studies, viz. molecular orbital analysis and molecular dynamic (MD) modelling were also conducted to understand the inhibition mechanism completely.