材料科学
腐蚀
电化学
碳钢
吸附
无水的
化学工程
碳纤维
X射线光电子能谱
无机化学
冶金
复合材料
复合数
有机化学
电极
化学
工程类
物理化学
作者
Jiajia Zhu,Mengyue Zhu,Renhui Zhang,Zhongyi He,Lei Xiong,Lei Guo
标识
DOI:10.1080/01694243.2022.2108271
摘要
Carbon dots (CDs) are spherical zero-dimensional carbon nanomaterials, generally below 10 nm in size, which have received increasing attention in the field of corrosion because of various advantages such as good water solubility, abundant raw materials, and environmental protection. In this work, water-soluble carbon dots (CDs) with particle sizes of 5–10 nm are obtained by electrochemical oxidation with anhydrous ethanol. FTIR, Raman, UV–Vis, XPS, and TEM are used to characterize the obtained CDs, and electrochemical tests are used to investigate the anti-corrosion performance of the CDs. The results reveal that the corrosion inhibition performance increased with the addition of CDs, and the highest corrosion inhibition efficiency reaches 98% when the addition amount is 200 mg/L. Moreover, the inhibition mechanism for CDs needs to be further investigated, and the stable adsorption of CDs on carbon steel to form adsorption film may be the key factor for its good corrosion inhibition performance.
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