兹维特里昂改性奇托作为在盐酸溶液中用于温钢的高性能腐蚀抑制剂
Xiaohu Luo1, Bo Chen2, Ji Li3
1School of Chemistry and Environment, Jiaying University, Meizhou 514015, PR China; Engineering Research Center of Loss Efficacy and Anticorrosion of Materials of Guizhou, School of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities, Duyun 558000, PR China; State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
International journal of biological macromolecules
|April 7, 2024
概括
一种新型的奇托桑希夫基 (CS-FGA) 有效地抑制HCl溶液中温和钢的腐蚀,达到97.6%的效率. 这种可持续的抑制剂通过化学吸收形成了一层保护层,其性能优于未经修改的酸盐.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 腐蚀科学 腐蚀科学
背景情况:
- 在酸性环境中对温钢的腐蚀带来了重大挑战.
- 开发可持续和高效的腐蚀抑制剂至关重要.
研究的目的:
- 合成和评估一种新型的奇托桑希夫基 (CS-FGA) 作为温钢的可持续腐蚀抑制剂.
- 研究CS-FGA的抑制机制和吸附行为.
主要方法:
- 通过化合成酸盐希夫基 (CS-FGA).
- 电化学试验 (例如,潜在动力极化,EIS) 用于对腐蚀抑制的评估.
- 使用SEM,AFM,WCA,XPS和UV-Vis光谱学进行表面表征.
- 理论计算包括DFT和分子动力学模拟.
主要成果:
- CS-FGA在1.0M HCl中,在400 mg/L的温度下,证明了温钢的最大抑制效率为97.6%,为1.0M HCl.
- 通过物理吸收和化学吸收,CS-FGA作为混合型抑制剂,在温钢表面形成稳定的保护层.
- 证据表明Fe-N键证实了化学吸收,并得到了Langmuir吸附异温和表面分析的支持.
- 理论计算揭示了吸附机制和保护膜的形成.
结论:
- CS-FGA是一种高效和可持续的腐蚀抑制剂,用于HCl中的温钢.
- 抑制剂的有效性源于强烈的吸附和通过化学吸附形成保护膜.
- 这项研究提供了关于基托基腐蚀抑制剂的机制的见解.
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