Functionalized carbon nanotubes as a novel inhibitor to enhance the anticorrosion performance of carbon steel in CO2-saturated NaCl solution
Functionalized carbon nanotubes as a novel inhibitor to enhance the anticorrosion performance of carbon steel in CO2-saturated NaCl solution
复制标题
功能化碳纳米管作为新型抑制剂提高碳钢在CO2饱和氯化钠溶液中的防腐性能
DOI：
10.1016/j.corsci.2020.109011
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发表时间：
2020-12-01
影响因子：
8.3
通讯作者：
Chen, Zhenyu
中科院分区：
文献类型：
--
作者：
Cen, Hongyu;Cao, JiaoJiao;Chen, Zhenyu
采用水热法合成了功能化碳纳米管，并将其用于碳钢在CO2饱和的氯化钠溶液中的缓蚀作用。结果表明，碳纳米管能有效地缓蚀碳钢，当L浓度为100mg时，缓蚀率接近90%。分子动力学模拟证实，碳纳米管可以通过官能化基团吸附在碳钢表面，形成金属表面的疏水层，从而抑制腐蚀介质的扩散迁移。研究了FCNTs的吸附动力学和热力学等温线，探讨了FCNTs与传统缓蚀剂的区别。
Functionalized carbon nanotubes (FCNTs) were synthesized by hydrothermal method and adopted as a corrosion inhibitor of carbon steel in CO2-saturated NaCl solution. Results revealed that FCNTs can effectively inhibit carbon steel corrosion, and their inhibition efficiency is close to 90 % at the concentration of 100 mg L-1. FCNTs can adsorb on carbon steel via functionalized groups and make up the hydrophobic layer on the metal surface, which also inhibits the diffusion migration of corrosive mediums as confirmed by molecular dynamics simulation. Adsorption kinetic and thermodynamic isotherm were studied to discuss the difference of FCNTs with traditional inhibitors.