Evaluation of the inhibition behavior of carbon dots on carbon steel in HCl and NaCl solutions

查看全文 作　　者：Yuwei [1]Ye;Zilong [1]Jiang;Yangjun [1]Zou;Hao [1]Chen;Shengda [1]Guo;Qiumin [1]Yang;Liyong [1]Chen

机构地区：[1]Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou,341000,China

出　　处：《Journal of Materials Science & Technology》索引2020年第36卷第8期,共10页

基　　金：financially supported by Scientific Research Foundation of Jiangxi University of Science and Technology(No.205200100421);the Program of Qingjiang Excellent Young Talents,Jiangxi University of Science and Technology;the Natural Science Foundation of Jiangxi Province(No.20181BBE58001);the Natural Science Foundation of Jiangxi Education Department(No.GJJ180431);the Research and Development Project of Ganzhou;the Science and Technology Innovation Talents Program of Ganzhou。 摘　　要：An eco-friendly and effective corrosion inhibitor(N-CDs)was acquired by hydrothermal method in methacrylic acid and ethyl(methyl)amine precursors.Afterwards,the weight loss and electrochemistry measurement were chosen to appraise the corrosion inhibition behavior of as-prepared N-CDs for Q235 steel in Cl-contained solutions.The change rules of EIS and Tafel data displayed that the as-prepared N-CDs revealed a high-efficiency protection for steel in all test environments.Meanwhile,the inhibition efficiency of steel reached up to 93.93%(1 M HCl)and 88.96%(3.5 wt%Na Cl)at 200 mg/L of N-CDs.Furthermore,the N-CDs could form the adsorption film on steel surface to avoid the strong attack of Cl-.By analysis,the adsorption mechanism of as-prepared N-CDs on steel surface was physicochemical interaction,which strictly complied with the Langmuir adsorption model in both solutions. 关键词：Carbon dots Adsorption film Corrosion protection

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Evaluation of the inhibition behavior of carbon dots on carbon steel in HCl and NaCl solutions

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