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首页> 外文期刊>Journal of industrial and engineering chemistry >Fabrication and characterization of polypyrrole coatings by embedding antimony modified SnO2 nanoparticles
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Fabrication and characterization of polypyrrole coatings by embedding antimony modified SnO2 nanoparticles

机译：嵌入锑改性SnO2纳米粒子的制备与表征达吡咯涂层

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摘要

Polypyrrole (PPy) coatings were successfully electrosynthesized on the carbon steel by embedding SnO2 and Sb-SnO2 nanoparticles (NPs). The associated structural, morphology, hydrophobic, physical properties, anti-corrosion and self-healing performance of these coatings were systematically studied by several tests. XRD results showed that SnO2 had a tetragonal rutile structure and the lattice parameters indicated that Sb ions were successful substituted into SnO2 lattice. The average size of SnO2 NPs was decreased by the incorporation of Sb-SnO2 NPs, which were found through TEM images. The contact angle test showed that the hydrophobic of PPy coatings was greatly enhanced by the incorporation of Sb-SnO2 NPs. SEM results revealed that Sb-SnO2/PPy coating exhibited a more compact and uniform surface than SnO2/PPy coating, hence the physical barrier effect was significantly strengthened. The electrochemical measurements confirmed the excellent anti-corrosion and self-healing ability of Sb-SnO2/PPy coating for a long immersion time in HCl solution. The superior anti-corrosion performance of Sb-SnO2/PPy coating was ascribed to the synergistic effects of the anodic protection combined with the self-healing effect, the excellent physical barrier effect with compact, smooth and hydrophobic coating surface as well as the formation of p-n junction with decreased charge transfer. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：通过嵌入SnO2和Sb-SnO2纳米颗粒（NPS）通过在碳钢上成功地将聚吡咯（PPY）涂层在碳钢上进行成功地电机。通过几种测试系统地研究了这些涂料的相关结构，形态，疏水性，抗腐蚀和自我愈合性能。 XRD结果表明，SnO2具有四方金红石结构，并晶格参数表明SB离子成功被取代成SnO2晶格。通过掺入Sb-SnO2 NPS的平均尺寸的平均大小降低，该SB-SNO2 NP通过TEM图像发现。接触角测试显示通过掺入Sb-SnO2 NPS大大提高了PPY涂层的疏水性。 SEM结果表明，Sb-SnO2 / PPY涂层表现出比SnO 2 / PPY涂层更紧凑和均匀的表面，因此物理屏障效应显着强化。电化学测量确认了HCl溶液中长浸入时间的Sb-SnO2 / PPY涂层的优异的抗腐蚀和自愈合能力。 Sb-SnO2 / PPY涂层的卓越的抗腐蚀性能归因于阳极保护的协同效应与自我愈合效果相结合，具有紧凑，光滑和疏水性涂层表面的优异物理屏障效应以及形成电荷转移减少的PN结。 （c）2019年韩国工程化学学会。 elsevier b.v出版。保留所有权利。

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