文献类型：期刊文献

英文题名：Cationic Gemini Surfactants with a Bipyridyl Spacer as Corrosion Inhibitors for Carbon Steel

作者：Feng, Liwei[1];Yin, Chengxian[2];Zhang, Huali[3];Li, Yufei[3];Song, Xuehua[1];Chen, Qibin[1];Liu, Honglai[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]State Key Lab Performance & Struct Safety Petr Tu, Xian 710065, Shaanxi, Peoples R China;[3]Southwest Oil & Gas Field Co, PetroChina, Engn & Technol Res Inst, Chengdu 610017, Sichuan, Peoples R China

年份：2018

卷号：3

期号：12

起止页码：18990

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000458439900086)】；

基金：This work was funded by Open Foundation of The State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials (2017-FW-76), the National Natural Science Foundation of China (Nos. 21576079, 91334203), the 111 Project of Ministry of Education of China (No. B08021), and the Fundamental Research Funds for the Central Universities of China.

语种：英文

摘要：In this work, cationic Gemini surfactants with different alkyl chain lengths (n = 8, 10, and 12) and a bipyridyl spacer were synthesized and tested as corrosion inhibitors for carbon steel in 1 M HCl solution. The corrosion inhibition efficiency was determined by weight loss measurement, potentiodynamic polarization, and electrochemical impedance spectroscopy. Results showed that such three inhibitors could effectively inhibit the corrosion of carbon steel in 1 M HCl solution, especially at their low concentrations, while the carbon chain length of Geminis used played a negligible role in the inhibition efficiency. Scanning electron microscopy/energy dispersive X-ray analysis observations demonstrated the formation of a protective inhibitor layer on the carbon steel surface. Additionally, the adsorption of the inhibitor molecules on the carbon steel surface was found to obey the Langmuir isotherm.