Background

This work aimed to explore a way that can effectively alternative traditional and hazardous corrosion inhibitors.

Methods

We synthesized a novel N-doped carbon dots (NCDs) were prepared by hydrothermal method, elucidated its chemical structure using different spectroscopic techniques, the behavior of NCDs for copper in H2SO4 solution was studied by electrochemical measurement, microscopic surface observation and X-ray photoelectron spectroscopy (XPS). Results demonstrate that the inhibitor being studied is a mixed-type, the higher the concentration, the higher the inhibition efficiency, reaching 96.1%. This novel inhibitor could adhere to the copper surface because of its properties of nanomaterials, such as diffusion and agglomeration. Morover, the interaction between Cu2+ and NCDs causes in the formation of a netted anti-corrosion film on the surface of copper.

Significant

This work puts forward the corrosion mechanism of NCDs, which can provide powerful guidance for the application of new nanomaterials in metal corrosion.

中文翻译：

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了解掺氮碳点在 0.5 M H2SO4 溶液中对铜的吸附和抑制特性

背景

这项工作旨在探索一种可以有效替代传统和危险腐蚀抑制剂的方法。

方法

我们通过水热法合成了一种新型的掺氮碳点（N CDs），利用不同的光谱技术阐明了其化学结构，通过电化学测量、显微表面观察和 X-射线光电子能谱（XPS）。结果表明，所研究的抑制剂为混合型，浓度越高，抑制效率越高，达到96.1%。由于其纳米材料的特性，如扩散和团聚，这种新型抑制剂可以粘附在铜表面。此外，Cu2+ 和 N CDs之间的相互作用导致在铜表面形成网状防腐蚀膜。

重要的

该工作提出了N CDs的腐蚀机理，可为新型纳米材料在金属腐蚀中的应用提供有力的指导。