Study on highly efficient corrosion inhibition of copper by regular self-aggregates of organic molecule

Xue LUO; Chuan JING; Haijun HUANG; Hongru LI; Zhiyong WANG; Zhenqiang WANG; Fang GAO; Shengtao ZHANG

doi:10.11949/0438-1157.20191318

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Study on highly efficient corrosion inhibition of copper by regular self-aggregates of organic molecule

Surface and interface engineering | 更新时间：2025-11-25

- Study on highly efficient corrosion inhibition of copper by regular self-aggregates of organic molecule
- CIESC Journal Vol. 71, Issue 10, Pages: 4733-4749(2020)
- 作者机构：
  
  1.重庆大学化学化工学院，重庆 400044
  2.重庆师范大学化学学院，重庆，401331
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20191318
  CLC： TG 178
- Received：11 November 2019，
  
  Revised：2020-03-28，
  
  Published：05 October 2020
- 稿件说明：
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罗雪, 荆川, 黄海军, 李红茹, 王治永, 王震强, 高放, 张胜涛. 规整有机分子自聚集体对铜的高效缓蚀的研究[J]. 化工学报, 2020, 71(10): 4733-4749

LUO Xue, JING Chuan, HUANG Haijun, LI Hongru, WANG Zhiyong, WANG Zhenqiang, GAO Fang, ZHANG Shengtao. Study on highly efficient corrosion inhibition of copper by regular self-aggregates of an organic molecule[J]. CIESC Journal, 2020, 71(10): 4733-4749
罗雪, 荆川, 黄海军, 李红茹, 王治永, 王震强, 高放, 张胜涛. 规整有机分子自聚集体对铜的高效缓蚀的研究[J]. 化工学报, 2020, 71(10): 4733-4749 DOI： 10.11949/0438-1157.20191318.

LUO Xue, JING Chuan, HUANG Haijun, LI Hongru, WANG Zhiyong, WANG Zhenqiang, GAO Fang, ZHANG Shengtao. Study on highly efficient corrosion inhibition of copper by regular self-aggregates of an organic molecule[J]. CIESC Journal, 2020, 71(10): 4733-4749 DOI： 10.11949/0438-1157.20191318.

摘要

通过多步法合成了离子型含双苯并三氮唑环的目标分子，4，4'-{苯-1，3-二基二[(1E)-3-羰基丙-1-烯-1，3-二基]}二[2-(2H-苯并三唑-2-基)苯醇酸]二钾。在室温条件下，目标分子在3.5%（质量）NaCl/DMSO（二甲基亚枫）混合溶液（体积比：40/60）中能够发生分子自组装产生纳-微米级的自聚集体。通过傅里叶变换红外光谱（FT-IR）、拉曼光谱和X射线光电子能谱（XPS）的表征，证实了所形成的目标分子自聚集体能够对铜表面产生强烈的化学吸附作用，在铜表面形成自组装膜。利用电化学方法测定了目标分子自聚集体吸附在铜表面形成自组装膜后，在3.5%（质量）NaCl溶液中的缓蚀性能。结果表明目标分子自聚集体在NaCl溶液中能高效地抑制铜腐蚀。

Abstract

This study presents synthesis of target ionic bistriazole rings-based molecule

4'-{benzene-1

3-diylbis[(1E)-3-oxoprop-1-ene-1

3-diyl]}bis[2-(2H-benzotriazol-2-yl)phenolate]

dipotassium (

BDBD

)

through multi-step preparation route. At room temperature

the target molecule can self-assemble to produce nano-micron self-aggregates in a 3.5%(mass) NaCl / DMSO (dimethyl maple) mixed solution (volume ratio

40/60). It is shown that the predominantly strong chemical adsorption of the formed molecular self-aggregates on the studied copper specimen leads to the yield of self-assembly film on copper surface

which is characterized by FT-IR

Raman and XPS spectroscopy. The corrosion inhibition performance of the stable self-aggregates adsorbed-copper specimens in 3.5%(mass) brine solution based on electrochemical method is surveyed. The results show that the target molecular self-aggregates can effectively inhibit copper corrosion in NaCl solution.

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