Synthesis and Characterization of Hydrotalcite/Graphene Oxide Containing Benzoate for Corrosion Protection of Carbon Steel

IF 0.8 Q4 ELECTROCHEMISTRY Corrosion Science and Technology-Korea Pub Date : 2020-04-30 DOI:10.14773/CST.2020.19.2.82

T. Nguyen, Boi An Tran, K. Vu, A. S. Nguyen, A. T. Trinh, G. V. Pham, Thi Xuan Hang To, T. Phan

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引用次数: 2

Abstract

This work examined the corrosion protection performance of benzoate loaded hydrotalcite/graphene oxide (HT/GO-BZ) for carbon steel. HT/GO-BZ was fabricated by the co-precipitation method and characterized by infrared spectroscopy, X-ray diffraction, and scanning electronic microscopy. The corrosion inhibition action of HT/GO-BZ on carbon steel in 0.1 M NaCl solution was evaluated by electrochemical measurements. The benzoate content in HT/GO-BZ was determined by UV-Vis spectroscopy. Subsequently, the effect of HT/GO-BZ on the corrosion resistance of the water-based epoxy coating was investigated by the salt spray test. The obtained results demonstrated the intercalation of benzoate and GO in the hydrotalcite structure. The benzoate content in HT/GO-BZ was about 16%. The polarization curves of the carbon steel electrode revealed anodic corrosion inhibition activity of HT/GO-BZ and the inhibition efficiency was about 95.2% at a concentration of 3g/L. The GO present in HT/GO-BZ enhanced the inhibition effect of HT-BZ. The presence of HT/GO-BZ improved the corrosion resistance of the waterborne epoxy coating.

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含苯甲酸盐的水滑石/氧化石墨烯的合成与表征

研究了苯甲酸负载水滑石/氧化石墨烯（HT/GO-BZ）对碳钢的防腐性能。采用共沉淀法制备了HT/GO-BZ，并用红外光谱、X射线衍射和扫描电子显微镜对其进行了表征。通过电化学测量评估了HT/GO-BZ在0.1M NaCl溶液中对碳钢的缓蚀作用。用紫外-可见光谱法测定了HT/GO-BZ中苯甲酸酯的含量。随后，通过盐雾试验研究了HT/GO-BZ对水性环氧涂层耐腐蚀性能的影响。所得结果表明苯甲酸酯和GO嵌入水滑石结构中。HT/GO-BZ中苯甲酸酯的含量约为16%。碳钢电极的极化曲线显示HT/GO-BZ的阳极缓蚀活性，在3g/L的浓度下，缓蚀效率约为95.2%。GO在HT/GO-BZ中的存在增强了HT-BZ的抑制作用。HT/GO-BZ的存在提高了水性环氧涂料的耐腐蚀性。

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Corrosion Science and Technology-Korea ELECTROCHEMISTRY-

CiteScore

1.30

自引率

66.70%

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