Abstract The depreciation of assets and safety threats because of corrosion has forced to develop eco-friendly and smarter corrosion protection strategies. In this study, natural Gum Arabic (GA) was used as a corrosion inhibitor and loaded into cerium oxide nanoparticles (CONPs) to develop an environment-friendly additive for corrosion protection of coated steel in the marine environment. This additive was uniformly dispersed into an epoxy formulation that was used to protect steel plates. Epoxy coatings containing CONPs, without GA, were also prepared as reference. High-Resolution Transmission Electron Microscopy (HR-TEM) and Fourier Transform infrared spectroscopy (FTIR) revealed the successful loading of GA into the CONPs. Thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) techniques confirmed approximately ⁓30.0 wt% loading of GA into the CONPs. Electrochemical impedance spectroscopy (EIS) demonstrated the anticorrosion properties of the epoxy coatings modified with the GA loaded CONPs when compared to reference coatings. The corrosion protection mechanism postulates that GA loaded CONPs act as a filler material for epoxy coating and it can also aid the recovery of the protective properties of the epoxy coating leading to the formation of a stable protective layer.

中文翻译：

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负载阿拉伯树胶的氧化铈作为环保型防腐添加剂，用于保护涂层钢

摘要 由于腐蚀导致的资产贬值和安全威胁，迫使开发更环保、更智能的腐蚀保护策略。在这项研究中，天然阿拉伯树胶 (GA) 被用作腐蚀抑制剂，并加载到氧化铈纳米粒子 (CONP) 中，以开发一种环保添加剂，用于海洋环境中涂层钢的腐蚀保护。这种添加剂被均匀地分散到用于保护钢板的环氧树脂配方中。还制备了不含 GA 的含有 CONP 的环氧树脂涂层作为参考。高分辨率透射电子显微镜 (HR-TEM) 和傅立叶变换红外光谱 (FTIR) 显示 GA 成功加载到 CONP 中。热重分析 (TGA) 和 Brunauer-Emmett-Teller (BET) 技术证实了大约 ⁓30。0 wt% GA 加载到 CONP 中。与参考涂层相比，电化学阻抗谱 (EIS) 证明了用 GA 负载的 CONP 改性的环氧涂层的防腐性能。腐蚀保护机制假定负载 GA 的 CONP 作为环氧树脂涂层的填充材料，它还可以帮助恢复环氧树脂涂层的保护性能，从而形成稳定的保护层。