Corrosion protection enhancement of Mg alloy WE43 by in-situ synthesis of MgFe LDH/citric acid composite coating intercalated with 8HQ

Jesslyn K.E. Tan, N. Birbilis, S. Choudhary, S. Thomas, P. Balan

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15 Citations (Scopus)


A composite coating consisting of Mg-Fe LDH intercalated with 8-hydroxyquinoline (8HQ) and modified with citric acid (CA) layer is constructed on Mg alloy WE43 via combination of electrodeposition, hydrothermal and anion-exchange. In view of CA and their small “island-shaped” surface morphology, the CA coating could provide MgFe LDH film with physical and chemical shielding. The intercalation of 8HQ into the MgFe LDH/0.05CA saw further enhancement in corrosion resistance as 8HQ hinders anodic and cathodic dissolution reaction. Furthermore, the MgFe-8HQ LDH/0.05CA coating presented a possible self-healing based on the 7-day EIS study, establishing as a potential coating for biomedical implant applications.

Original languageEnglish
Article number110444
Number of pages14
JournalCorrosion Science
Publication statusPublished - 15 Aug 2022


  • 8-hydroxyquinoline
  • Citric acid
  • Corrosion
  • Layered double hydroxide
  • Magnesium alloy
  • Surface modification

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