具有非凡腐蚀性能的草状混合建筑的现场施工:实验和理论方法

IF 9.9 2区 材料科学 Q1 Engineering
T. Suhartono , F. Hazmatulhaq , Y. Sheng , A. Chaouiki , M.P. Kamil , Y.G. Ko
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引用次数: 0

摘要

尽管无机物质和有机物质的共存具有保护脆弱金属材料免受腐蚀环境侵蚀的工程潜力,但人们对它们之间的相互作用以及诱导自然启发复合材料的原位形成机制仍然知之甚少。本研究使用了三种不同的巯基苯并唑(MB)化合物作为腐蚀抑制剂,如 2-巯基苯并恶唑(MBO)、2-巯基苯并噻唑(MBT)和 2-巯基苯并咪唑(MBI),旨在了解 O、S 和 N 原子产生的几何结构如何影响与无机层的相互作用。用于控制腐蚀动力学的甲基溴化合物很容易与等离子电解法制造的原有氧化镁层发生作用。这种现象引发了根网络的成核,因为甲基溴化合物通过甲基溴化合物中的活性位点被吸附在缺陷表面上。然后,与巯基位点相邻的孪生供体原子分子通过分子自组装,促进了 "均匀 "分布的草状结构的生长,其腐蚀性能比具有不同供体原子的分子更好,抑制效率(η)约为 97%。通过密度泛函理论的理论计算,探讨了甲基溴分子成核和生长行为的形成机理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

In-situ construction of grass-like hybrid architecture responsible for extraordinary corrosion performance: Experimental and theoretical approach

In-situ construction of grass-like hybrid architecture responsible for extraordinary corrosion performance: Experimental and theoretical approach

In-situ construction of grass-like hybrid architecture responsible for extraordinary corrosion performance: Experimental and theoretical approach

Despite the engineering potential by the co-existence of inorganic and organic substances to protect vulnerable metallic materials from corrosive environments, both their interaction and in-situ formation mechanism to induce the nature-inspired composite remained less understood. The present work used three distinctive mercapto-benzazole (MB) compounds working as corrosion inhibitors, such as 2-mercaptobenzoxazole (MBO), 2-mercaptobenzothiazole (MBT), and 2-mercaptobenzimidazole (MBI) in a bid to understand how the geometrical structure arising from O, S, and N atoms affected the interaction toward inorganic layer. MB compounds that were used here to control the corrosion kinetics would be interacted readily with the pre-existing MgO layer fabricated by plasma electrolysis. This phenomenon triggered the nucleation of the root network since MB compounds were seen to be adsorbed actively on the defective surface through the active sites in MB compound. Then, the molecule with twin donor atoms adjacent to the mercapto-sites affected the facile growth of the grass-like structures with ‘uniform’ distribution via molecular self-assembly, which showed better corrosion performance than those with having dissimilar donor atoms with the inhibition efficiency (η) of 97% approximately. The formation mechanism underlying nucleation and growth behavior of MB molecule was discussed concerning the theoretical calculation of density functional theory.

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来源期刊
Nano Materials Science
Nano Materials Science Engineering-Mechanics of Materials
CiteScore
20.90
自引率
3.00%
发文量
294
审稿时长
9 weeks
期刊介绍: Nano Materials Science (NMS) is an international and interdisciplinary, open access, scholarly journal. NMS publishes peer-reviewed original articles and reviews on nanoscale material science and nanometer devices, with topics encompassing preparation and processing; high-throughput characterization; material performance evaluation and application of material characteristics such as the microstructure and properties of one-dimensional, two-dimensional, and three-dimensional nanostructured and nanofunctional materials; design, preparation, and processing techniques; and performance evaluation technology and nanometer device applications.
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