Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution

Lin Bing; Zuo Yu

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Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution

机译：碱溶液中碳钢对不同亚烷基链的腐蚀抑制作用

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The inhibition effects of five organic carboxylate compounds with different alkylene chain lengths on Q235 steel in a simulated carbonation concrete pore solution (pH 11.5) were studied using quantum chemical calculations, electrochemical measurement and surface analysis. The results show that the adsorption capacity of the inhibitors increases with increasing distance between the C?C bond and COO- group. As the alkylene chain length increases, the absolute surface charge value increases and the inhibition effectiveness tends to increase. C11 shows the best inhibition. The carboxylate inhibitors adsorb on a steel surface by forming Fe-OOC-C-x compounds and the C?C bonds could enhance the adsorption process.

机译：使用量子化学计算，电化学测量和表面分析研究了在模拟碳酸混凝土孔溶液（pH11.5）中对Q235钢的不同亚烷基链长的抑制作用。结果表明，抑制剂的吸附能力随着C 2键和COO-组之间的距离而增加。随着亚烷基链长增加，绝对表面电荷值增加，抑制效果趋于增加。 C11显示了最佳抑制作用。通过形成Fe-OOC-C-X化合物和C键可增强吸附过程，羧酸酯抑制剂吸附在钢表面上。

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来源
《RSC Advances》 |2019年第13期|共13页
作者
Lin Bing; Zuo Yu;
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Beijing Univ Chem Technol Coll Mat Sci &

Engn Beijing Key Lab Electrochem Proc &

Technol Mat Beijing 100029 Peoples R China;

Beijing Univ Chem Technol Coll Mat Sci &

Engn Beijing Key Lab Electrochem Proc &

Technol Mat Beijing 100029 Peoples R China;

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正文语种 eng
中图分类化学;
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3. Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution [J] . Lin Bing, Zuo Yu RSC Advances . 2019,第13期

机译：碱溶液中碳钢对不同亚烷基链的腐蚀抑制作用
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9. Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution [O] . Bing Lin, Yu Zuo 2019

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Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution

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