期刊
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷 138, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jtice.2022.104462
关键词
Copper; Quantum dots; Electrochemical measurement; Chlorination corrosion
资金
- NSFC project [52071198, 52001194]
- Science & Technology Commission of Shanghai Municipality [18DZ2204400, 19DZ2271100]
In this study, high-nitrogen-doped CDs were prepared via solvothermal treatment and their corrosion inhibition effect on copper in 3wt% NaCl solution was investigated. The results showed that N-doped CDs can form a compact protective film, effectively protecting the copper material.
Background: Carbon dots (CDs) can be designed as an effective assembly unit to construct the intelligent corrosion inhibition system. Compared to purified CDs, the doped CDs have more advantageous anti-corrosion performance. However, the reported nitrogen-doped CDs usually have a low N/C atomic ratio. The increase of the N/C ratio has an important significance in improving the properties of nitrogen-doped CDs for corrosion protection. Methods: The high-nitrogen-doped CDs (N-doped CDs) are prepared from melamine and fructose via solvothermal treatment. The corrosion inhibition effect of the N-doped CDs for copper in 3wt% NaCl solution is studied by electrochemical measurements, surface characterizations and fluorescence spectrum analyzer. It demonstrates that the N-doped CDs can protect the copper in 3wt% NaCl solution effectively. Significant findings: The nitrogen content of the N-doped CDs is improved to 23.95%.The optimal inhibition efficiencies reach 96.1% at 200 mg.L-1 of the N-doped CDs. The N-doped CDs can form a compact protective film on copper surface via adsorption and chelation with cupric ions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据