Fabrication of and corrosion prevention mechanisms of tin oxide (SnO2) decorated reduced graphene oxide (rGO) for anodic protection of Zn metal surfaces

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-01-23 DOI:10.4314/bcse.v38i2.12

Haewon Byeon, V. Puvana Devi, P. Peter Anandkumar, Ashwini Balakumar, S. Bharathi Raja, D. Prince Sahaya Sudherson, J. Sunil

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Abstract

The hydrothermal approach was utilized to prepare SnO2 and rGO-SnO2 composite, and its physicochemical properties and corrosion resistance application are examined in this study. The results suggest that the SnO2, rGO-SnO2 composite exhibits a well-defined and uniform morphology, with SnO2 NPs homogeneously distributed and anchored on the rGO. XRD analysis confirms the crystalline tetragonal structure with 19.1 nm and 20.8 crystalline size. Further, the corrosion resistance application of the rGO-SnO2 composite is evaluated through electrochemical measurements, such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The composite-coated substrate is subjected to NaCl electrolyte using a Zn plate. The corrosion performance is compared with that of bare Sn and rGO-SnO2 counterparts to assess the synergistic effect of the composite which exhibits enhanced anticorrosion properties. The synergistic effect of Sn and rGO in the composite offers superior corrosion resistance, making it a promising material for various corrosion-prone applications. Overall, the findings contribute to developing novel and effective strategies for combating corrosion, ensuring the durability and reliability of materials in diverse industrial environments. KEY WORDS: Sn-rGO composite, Tafel plot, Corrosion protection, Surface analysis, Synergistic effect Bull. Chem. Soc. Ethiop. 2024, 38(2), 445-456. DOI: https://dx.doi.org/10.4314/bcse.v38i2.12

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用于锌金属表面阳极保护的氧化锡（SnO2）装饰还原氧化石墨烯（rGO）的制备和防腐蚀机理

本研究采用水热法制备了 SnO2 和 rGO-SnO2 复合材料，并考察了其理化性质和耐腐蚀性能。结果表明，SnO2、rGO-SnO2 复合材料的形貌清晰而均匀，SnO2 NPs 均匀分布并锚定在 rGO 上。XRD 分析证实了其结晶尺寸为 19.1 nm 和 20.8 nm 的晶体四方结构。此外，还通过电位极化和电化学阻抗谱（EIS）等电化学测量方法评估了 rGO-SnO2 复合材料的耐腐蚀性能。使用 Zn 板将复合材料涂层基底置于 NaCl 电解液中。将腐蚀性能与裸锡和 rGO-SnO2 的腐蚀性能进行比较，以评估复合材料的协同效应，因为复合材料具有更强的防腐性能。复合材料中锡和 rGO 的协同效应提供了优异的耐腐蚀性能，使其成为各种易腐蚀应用的理想材料。总之，研究结果有助于开发新型有效的抗腐蚀策略，确保材料在各种工业环境中的耐用性和可靠性。关键字：Sn-rGO 复合材料，塔菲尔图，腐蚀防护，表面分析，协同效应 Bull.Chem.Soc.2024, 38(2), 445-456. DOI: https://dx.doi.org/10.4314/bcse.v38i2.12

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.