首页> 外文期刊>RSC Advances >The synthesis and characterization of benzotriazole-based cationic surfactants and the evaluation of their corrosion inhibition efficiency on copper in seawater
【24h】

The synthesis and characterization of benzotriazole-based cationic surfactants and the evaluation of their corrosion inhibition efficiency on copper in seawater

机译:基于苯并三唑基阳离子表面活性剂的合成与表征及其对海水铜腐蚀抑制效率的评价

获取原文
获取原文并翻译 | 示例
           

摘要

This study aims at preparing three cationic surfactants based on benzotriazole and evaluating their efficiencies as corrosion inhibitors for copper electrodes in seawater using different electrochemical techniques (potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM)). FTIR and H-1 NMR spectroscopic techniques confirmed the chemical structures of the as-prepared cationic compounds. The inhibition efficiency increased with the increase the concentration of the as-prepared compounds in the solution. The curves of the potentiodynamic polarization and the plots of EIS techniques show that the performance of all investigated compounds as mixed type. The standard free energy values imply that the three as-prepared compounds show physicochemical adsorption and obey the Langmuir adsorption model. AFM technique observed the reduction in the surface roughness due to the protective film formed on the copper surface. Finally, computational calculations show a great correlation with the experimental results due to the electron-donating effect.
机译:本研究旨在制备基于苯并三唑三种阳离子表面活性剂和作为腐蚀抑制剂用于使用不同的电化学技术在海水中铜电极评价其效率(电位极化,电化学阻抗谱(EIS)和原子力显微镜(AFM))。 FTIR和H-1 NMR光谱技术证实了制备的阳离子化合物的化学结构。随着溶液中制备的化合物的浓度增加,抑制效率增加。电极动力学偏振的曲线和EIS技术的曲线表明,所有研究化合物的性能为混合型。标准的自由能值意味着三种以制备的化合物显示出物理化学吸附并遵守Langmuir吸附模型。 AFM技术观察到由于在铜表面上形成的保护膜引起的表面粗糙度的降低。最后,计算计算显示由于电子捐赠效应导致的实验结果具有很大的相关性。

著录项

  • 来源
    《RSC Advances》 |2019年第46期|共14页
  • 作者

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号