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- 저자 : M.H. Shahini (검색결과 1 건)
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M.H. Shahini,Maryam Mousavi,Amir Masoud Arabi,Mohammad Mahdavian,Bahram Ramezanzadeh 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.101 No.-
In this endeavor, ultra-fine Ce oxide QDs were synthesized via an in-situ approach which itself wasdivided into two methods exploited to synthesize QDs on the GO nanosheets. Afterward, the obtainedproduct was loaded into the Epoxy (EP) structure and finally applied on the surface. The results affirmedthe presence of Ce oxide QDs and the quantum confinement effect in both samples. FT-IR analysis confirmedthe presence of different functional groups such as C@C and CAH. UV–Vis outcome showed theinteraction of GO nanosheets and CeO2 QDs. The morphology of the surface, QDs distribution on theGO nanosheets, shape, and particle sizes were explored using FESEM and HR-TEM. Lastly, the corrosionsuppression of different coatings—pure EP, GO-only-containing EP, or EP loaded with quantum-dotsdepositedGO synthesized by two methods—were compared and discussed in detail with the help ofEIS and salt spray methods. The result showed that, in the scratched samples, the maximum Rct of45,080 ohm.cm2 was reached when the QDs-modified GO, attaining via the first method, was employed. The overall result denoted the superior performance of the QDs-modified GO nanosheets embedded inthe EP coating—most specifically the one synthesized with the first method.
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