Scholarlink

<p>A novel samarium (III) Schiff base complex (SmL) was synthesized and characterized using a range of techniques, including FTIR, NMR, mass spectrometry, elemental analysis (CHN), powder X-ray diffraction (XRD), molar conductance, and magnetic susceptibility measurements. The corrosion inhibition performance of both the free ligand (H<sub>2</sub>L) and its Sm(III) complex was evaluated in 1&#xa0;M H<sub>3</sub>PO<sub>4</sub> using electrochemical methods, namely Tafel polarization and electrochemical impedance spectroscopy (EIS). The results showed that increasing inhibitor concentration led to a reduction in corrosion current density (Icorr.), with optimal inhibition efficiencies of 98.37% for H<sub>2</sub>L and 99.99% for SmL at 1 × 10<sup>−5</sup> M. EIS measurements confirmed an increase in charge transfer resistance, further supporting the formation of a protective film on the steel surface. Both the ligand and its Sm(III) complex were effective in suppressing oxide formation and enhancing corrosion resistance. These findings suggest that the SmL complex is a promising inhibitor for stainless steel in acidic environments.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Targeted Synthesis of Pyridine-Based Tridentate Chelate and Its Samarium(III) Complex for Corrosion Prevention on Stainless Steel

  • 期刊论文

  • 发表日期：

    2025年12月10日

查看全文
  • Shimaa M. Abdel-Fatah,
  • Maram T. Basha,
  • Ahlam I. Al-Sulami,
  • Laila H. Abdel-Rahman,
  • Mohamed R. Shehata,
  • Hoda Abd El-Shafy Shilkamy

摘要

A novel samarium (III) Schiff base complex (SmL) was synthesized and characterized using a range of techniques, including FTIR, NMR, mass spectrometry, elemental analysis (CHN), powder X-ray diffraction (XRD), molar conductance, and magnetic susceptibility measurements. The corrosion inhibition performance of both the free ligand (H2L) and its Sm(III) complex was evaluated in 1 M H3PO4 using electrochemical methods, namely Tafel polarization and electrochemical impedance spectroscopy (EIS). The results showed that increasing inhibitor concentration led to a reduction in corrosion current density (Icorr.), with optimal inhibition efficiencies of 98.37% for H2L and 99.99% for SmL at 1 × 10−5 M. EIS measurements confirmed an increase in charge transfer resistance, further supporting the formation of a protective film on the steel surface. Both the ligand and its Sm(III) complex were effective in suppressing oxide formation and enhancing corrosion resistance. These findings suggest that the SmL complex is a promising inhibitor for stainless steel in acidic environments.