• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of industrial and engineering chemistry >Construction of DOPA-SAM multilayers with corrosion resistance via controlled molecular self-assembly
【24h】

Construction of DOPA-SAM multilayers with corrosion resistance via controlled molecular self-assembly

机译：通过受控分子自组装构建多帕 - 山姆多层具有耐腐蚀的多层多层

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although nano "green" coatings with excellent corrosion resistance have attracted great attention, the inhibition efficiency is still limited due to the lack of knowledge about the correlation between molecular structure and anticorrosion performance. Here, we fabricated a series of 3,4-dihydroxy-L-phenylalanine adlayers on self-assembled monolayers (SAMs) with varying end groups. We found that both NH2- and CF3-SAMs were more conducive to the adsorption of DOPA and a flat adsorption conformation was preferentially adopted, with the plane of the phenylene ring parallel to the surface via cation-pi interactions or hydrophobic interactions, leading to a compact and dense adlayer. Such DOPA-SAM multilayers can effectively protect the substrate from corrosion by suppressing the diffusion of aggressive water and acid molecules as well as the electrodissolution of metals. The lowest corrosion current of adlayers reaches 6.96 mu A cm(-2) which is much lower than that of bare substrate and other anticorrosion surfaces reported previously. The results provide guidance on the design of green anticorrosion materials via selecting SAMs that bridge organic and metal interface. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：虽然纳米“绿色”涂层具有优异的耐腐蚀性，但由于对分子结构与防腐性能之间的相关性缺乏了解，抑制效率仍然有限。在这里，我们在具有不同端基的自组装单层（SAMS）上制造了一系列3,4-二羟基-1-苯丙氨酸阳丁片。我们发现NH 2和CF3-SAM都有利于DOPA的吸附，优先采用平坦的吸附构象，通过阳离子-PI相互作用或疏水相互作用平行于表面的亚苯基环的平面，导致a紧凑且密集的adlayer。这种DOPA-SAM多层可以通过抑制腐蚀性水和酸分子的扩散以及金属的电极凝固来有效地保护基材免受腐蚀。 Adlayers的最低腐蚀电流达到6.96μm（-2），远远低于裸衬底和先前报告的其他防腐表面。结果提供了通过选择桥接有机和金属界面的Sams设计绿色防腐材料的指导。 （c）2018年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号