• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Inhibition of mild steel corrosion in hydrochloric acid using two novel pyridine Schiff base derivatives: a comparative study of experimental and theoretical results
【24h】

Inhibition of mild steel corrosion in hydrochloric acid using two novel pyridine Schiff base derivatives: a comparative study of experimental and theoretical results

机译：使用两种新型吡啶席夫碱衍生物抑制盐酸温和钢腐蚀：实验性与理论结果的比较研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two novel pyridine Schiff base derivatives, namely 3-pyridinecarboxaldehyde-4-phenyl thiosemicarbazide (3-PCPTC) and 4-pyridinecarboxaldehyde-4-phenylthiosemicarbazide (4-PCPTC), were synthesized and their corrosion inhibition properties on mild steel in 1.0 M HCl were studied through experimental and theoretical measurements. Weight loss, electrochemical impedance spectroscopy and potentiodynamic polarization results indicate that both compounds exhibit a good inhibition effect and that 3-PCPTC shows better inhibition efficiency than 4-PCPTC. Meanwhile, the adsorption process obeys the Langmuir adsorption isotherm model, and thermodynamic parameters were calculated and discussed. Scanning electron microscopy and X-ray photoelectron spectroscopy analyses confirm the adsorption and protective abilities of the two studied inhibitors on mild steel in HCl. UV-vis spectroscopic studies show that the corrosion inhibitors interact with mild steel in HCl solution to form Fe-inhibitor complexes. Furthermore, quantum chemical calculations and molecular dynamics simulations were performed. According to the experimental and theoretical results, the inhibition mechanism was deduced.
机译：两种新的吡啶席夫碱衍生物，即3-吡啶膦羧甲醛-4-苯基硫代甲醛（3-PCPTC）和4-吡啶膦酰基甲醛（4-PCPTC），合成，它们在1.0M HCl中的温和钢上的腐蚀抑制性能通过实验和理论测量研究。重量损失，电化学阻抗光谱和电位动力学偏振结果表明，两种化合物表现出良好的抑制效果，并且3-PCPTC显示比4-PCPTC更好的抑制效率。同时，吸附过程遵循Langmuir吸附等温线，并计算热力学参数和讨论。扫描电子显微镜和X射线光电子能谱分析确认了两种研究抑制剂在HCl中的温和钢上的吸附和保护能力。 UV-Vis光谱研究表明，腐蚀抑制剂在HCl溶液中与低碳钢相互作用以形成Fe抑制剂复合物。此外，进行量子化学计算和分子动力学模拟。根据实验和理论结果，推导出抑制机制。

著录项

  • 来源
    《RSC Advances》 |2017年第68期|共16页
  • 作者

    Meng Yue; Ning Wenbo; Xu Bin; Yang Wenzhong; Zhang Kegui; Chen Yun; Li Lihua; Liu Xi; Zheng Jinhong; Zhang Yimin;

  • 作者单位

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Minist Environm Protect Nanjing Inst Environm Sci Nanjing 210042 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Chem &

    Mol Engn Nanjing 210009 Jiangsu Peoples R China;

    Minist Environm Protect Nanjing Inst Environm Sci Nanjing 210042 Jiangsu Peoples R China;

  • 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