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Evaluation of synthesized graphene oxide as corrosion protection film coating on steel substrate by electrophoretic deposition

机译：电泳沉积在钢基体上合成氧化石墨烯作为防腐膜的评价

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摘要

Graphene oxide (GO) synthesized from a flake-type of graphite powder, which was oxidized by various oxidizing agents, temperature control and two sets of drying processes, was electrophoresed on steel substrate for corrosion protection evaluation. The surface morphology, phase crystallization and defect states were determined by Electron microscopy equipped with an Energy dispersion spectrometry, X-ray diffraction and Raman and infrared spectra. The degrees of graphene oxide formation, intercalated defects and crystalline were observed by the impurities' changes and extending d-spacing. Besides, the BET, Zeta potential and electrochemical impedance spectra were measured to evaluate corrosion protection performance of GO electrophoresis deposition on steel. A strong oxidizing agent (NaNO3) with freeze drying provides high oxygenated functional groups in GO, thus, providing good corrosion protection against hydrochloric acid aqueous due to dense electrophoresis deposition, a lower corrosive current and high resistance of the carrier pathway. (C) 2017 Elsevier B.V. All rights reserved.
机译：由鳞片状石墨粉合成的氧化石墨烯（GO）在钢基材上电泳，并通过各种氧化剂，温度控制和两组干燥过程进行氧化，以评估其防腐性能。表面形貌，相结晶和缺陷状态通过配备能谱仪，X射线衍射和拉曼及红外光谱的电子显微镜确定。通过杂质的变化和扩展的d-间距观察到氧化石墨烯形成的程度，嵌入缺陷和结晶的程度。此外，通过测量BET，Zeta电位和电化学阻抗谱来评估GO电泳沉积在钢上的腐蚀防护性能。冷冻干燥的强氧化剂（NaNO3）在GO中提供了较高的氧化官能团，因此，由于稠密的电泳沉积，较低的腐蚀电流和较高的载流子路径阻力，可为盐酸水溶液提供良好的腐蚀防护。 （C）2017 Elsevier B.V.保留所有权利。

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