• 文献标题:   Development of metal-organic framework (MOF) decorated graphene oxide/MgAl-layered double hydroxide coating via microstructural optimization for anti-corrosion micro-arc oxidation coatings of magnesium alloy
  • 文献类型:   Article
  • 作  者:   CHEN YN, WU L, YAO WH, WU JH, XIANG JP, DAI XW, WU T, YUAN Y, WANG JF, JIANG B, PAN FS
  • 作者关键词:   zeoliticimidazole framework, layered double hydroxide, graphene oxide, microarc oxidation, corrosion protection, magnesium alloy
  • 出版物名称:   JOURNAL OF MATERIALS SCIENCE TECHNOLOGY
  • ISSN:   1005-0302 EI 1941-1162
  • 通讯作者地址:  
  • 被引频次:   6
  • DOI:   10.1016/j.jmst.2022.03.039 EA JUN 2022
  • 出版年:   2022

▎ 摘  要

An efficient and simple in-situ growth strategy has been discovered for the preparation of highly reproducible and continuous symbiotic ZIF-8-based anticorrosion coating by using graphene oxide (GO)/MgAlNO 3 layered double hydroxides (G/LDHs) buffer layer as a new type of connecting carrier based on micro-arc oxide (MAO) coating of AZ31 magnesium alloy. The components of ZIF-8 were adsorbed and bounded to the surface of the G/LDHs buffer layer-modified substrates to promote the nucleation of ZIF-8, thus growing a phase-pure, uniform, and good symbiosis ZIF-8 membrane. ZIF-8 particles with different growth times compensate for the grain boundary defects of the G/LDHs coating precursor buffer layer to different degrees. The prepared ZIF-8-based coating has excellent stability and corrosion resistance. The results demonstrate that the G/LDHs buffer layer provides a new channel for the MOF-modified MAO substrate of AZ31 magnesium alloy. It also proves that it is feasible to build high-performance anticorrosive coatings with MOF materials. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.