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- W4220911291 startingPage "118943" @default.
- W4220911291 abstract "• A general preparation method of carbon dots assisted by ionic liquids is promising for uniform carbon dots. • Excellent inhibition efficiency (>94%) can be obtained at a small amount of IL-CDs (40 mg/L). • The inhibition mechanism of ionic liquids assisted carbon dots has been proposed. • High pyrrole N content in IL-CDs, facilitating parallel adsorption, improves corrosion inhibition performance. A series of (N, S-rich) carbon dots were prepared from L-cysteine via the typical solvothermal method with 1-butyl-3-methylimidazolium bromide as the solvent by varying synthesis time. The experimental results indicated that the carbon dots synthesized for 60 min, the biggest in average carbon dot sizes (about 117.0 nm), highest pyrrole-like N contents (62.9%), showed the best corrosion inhibition performance with a high efficiency of 97% at 40 mg/L of inhibitors for carbon steel in 0.5 M H 2 SO 4 solution, which was ascribed to the fact that the adsorption of the carbon dots followed the Langmuir adsorption model. Correspondingly, a potential corrosion inhibition mechanism was proposed by surface characterization results, and the parallel adsorption mode of pyrrole-like N species on steel surface by π-complex formation contributed dominantly to the excellent inhibition performance. The work provided a general solvothermal method for carbon dots inhibitor synthesis assisted by ionic liquids, and the structure-inhibition relationship gave the guideline for the theoretical design of corrosion inhibitors." @default.
- W4220911291 created "2022-04-03" @default.
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- W4220911291 date "2022-06-01" @default.
- W4220911291 modified "2023-10-17" @default.
- W4220911291 title "Ionic liquid-assisted preparation of N, S-rich carbon dots as efficient corrosion inhibitors" @default.
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- W4220911291 doi "https://doi.org/10.1016/j.molliq.2022.118943" @default.
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