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Performance Evaluation of New Chalcone Oxime Functionalized Graphene Oxide as a Corrosion Inhibitor for Carbon Steel in a Hydrochloric Acid Solution
Langmuir ( IF 3.9 ) Pub Date : 2022-06-09 , DOI: 10.1021/acs.langmuir.2c00441
Abderrahmane Thoume 1, 2 , Driss Benmessaoud Left 1 , Abdelhakim Elmakssoudi 2 , Redouane Achagar 2 , Mohamed Dakir 2 , Mohammed Azzi 1 , Mustapha Zertoubi 1
Affiliation  

This study aims to synthesize new chalcone oxime functionalized graphene oxide (CO-GO) and investigate the enhancement in corrosion protection. The morphology and structure of the synthesized CO-GO have been characterized by elemental analysis: Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM). Moreover, the effectiveness of corrosion inhibition was investigated by utilizing electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). The results of the above analyses demonstrate that CO-GO has an outstanding corrosion inhibitor performance of up to 94% and acts as a mixed-type inhibitor with a primarily anodic action. The effect of temperature on a carbon steel surface indicates that the tested composites are chemisorbed. A few techniques were able to provide surface characterization such as scanning electron microscopy and ultraviolet (UV)–visible spectroscopy to confirm inhibitor adsorption on the carbon steel surface.

中文翻译:

新型查尔酮肟功能化氧化石墨烯作为碳钢在盐酸溶液中的缓蚀剂的性能评价

本研究旨在合成新的查尔酮肟官能化氧化石墨烯(CO-GO),并研究其在腐蚀防护方面的增强作用。合成的CO-GO的形态和结构已经通过元素分析进行​​了表征:傅里叶变换红外光谱(FTIR)、X射线衍射(XRD)、热重分析(TGA)和扫描电子显微镜(SEM)。此外,利用电化学阻抗谱(EIS)和动电位极化(PDP)研究了腐蚀抑制的有效性。上述分析结果表明,CO-GO 具有高达 94% 的出色缓蚀性能,是一种以阳极作用为主的混合型缓蚀剂。温度对碳钢表面的影响表明测试的复合材料是化学吸附的。
更新日期:2022-06-09
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