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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (20): 2279-2284. 上一篇    下一篇

研究论文

氯化2,3,5-三苯基-2 氢-四唑(TTC)及2,4,6-三(2-吡啶基)-s -三嗪(TPT)在1mol/L HCl 中对Q235碳钢的缓蚀作用及机理的研究(Ⅱ)

庞雪辉*,a  冉祥滨b   解建东c   张胜涛d   侯保荣e   

  1. (a济南大学化学化工学院 济南 250022) (b中国海洋大学化学化工学院 青岛 266003) (c山东建筑大学设计研究院 济南 250013) (d重庆大学化学化工学院 重庆 400044) (e中国科学院海洋研究所 青岛 266071)
  • 投稿日期:2009-02-04 修回日期:2009-05-07 发布日期:2009-06-22
  • 通讯作者: 庞雪辉 E-mail:pxh791118@163.com
  • 基金资助:

    国家科技支撑计划(No.082603101c)资助项目、济南大学博士基金(No.XBS0899)

2,3,5-Triphenyl-2H-tetrazolium Chloride and 2,4,6-Tri(2-pyridyl)- striazine on the Corrosion of Mild Steel in 1mol/L HCl(Ⅱ)

Pang, Xuehui*,a     Ran, Xiangbinb     Xie, Jiandongc    Zhang, Shengtaod     Hou, Baoronge   

  1. (a School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022) (b College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003) (c Institute of Design and Research, Shandong Jianzhu University, Jinan 250013) (d College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044) (e Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071)
  • Received:2009-02-04 Revised:2009-05-07 Published:2009-06-22

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通过X射线光电子能谱(XPS)、椭圆偏振原位测试考察了氯化2,3,5-三苯基-2H-四唑(TTC), 2,4,6-三(2-吡啶基)-s-三嗪(TPT)分子在1 mol/L HCl中对碳钢表面的缓蚀作用, 并从微观上对二者的缓蚀机理进行探讨. XPS测试结果显示, 由C, N元素的1s特征峰产生的化学位移及其积分峰面积表明TTC, TPT分子在金属表面产生了有效抑制腐蚀的保护层; 由椭圆偏振原位测试并结合动电位极化曲线测试,考察了TTC, TPT分子对金属表面腐蚀反应的抑制程度, 并得到了相位差等参量, 结果表明二者在金属表面形成了具有缓蚀作用的覆盖层.

关键词: 碳钢, 缓蚀剂, X射线光电子能谱, 椭圆偏振, 吸附

The inhibitory effect of 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) and 2,4,6-tri(2-pyridyl)- s-triazine (TPT) molecules on the corrosion of mild steel in 1 mol/L HCl and microcosmic inhibitory mechanism were investigated by X-ray photoelectron spectroscopy and ellipsometry. XPS results showed that C 1s and N 1s peaks of TTC, C 1s and N 1s peaks of TPT and their integral areas were obtained, which suggested the layer of the inhibitors (TTC or TPT) should have effectively protected the mild steel surface from the corrosion; and the depression from the inhibitors for the corrosion of mild steel surface was studied using ellipsometry combined with potentiodynamic polarization and the phasic difference was gained, which displayed the inhibitory coverage of the inhibitors formed.

Key words: carbon steel, corrosion inhibitor, X-ray photoelectron spectroscopy, ellipsometry, adsorption

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