Application of nanoporous cobalt-based ZIF-67 metal-organic framework (MOF) for construction of an epoxy-composite coating with superior anti-corrosion properties

By S. Lashgari, H. Yari, Mohammad Mahdavian, B. Ramezanzadeh, G. Bahlakeh, M. Ramezanzadeh. 2021

165 citations recorded by the source corpus.

Abstract In this study, for the first time, the ZIF-67 NPs were synthesized and used as a corrosion inhibitor container to enhance the barrier/active corrosion protection features of the epoxy coating. The protection performance of the ZIF-67 and ZIF-67@APS NPs filled epoxy composites was evaluated by EIS, salt-fog, and cathodic delamination experiments. The coating resistance values of the ZIF-67 and ZIF-67@APS NPs filled epoxy coatings reduced from 3.49 × 1010 Ω. cm2 to 2.47 × 109 Ω. cm2 and from 8.16 × 1010 Ω. cm2 to 5.78 × 109 Ω. cm2, respectively, after 50 days of immersion. The active corrosion inhibition effect of the epoxy/ZIF-67@APS NPs was demonstrated by electrochemical achievements.

Subfields: Civil and Structural Engineering, Inorganic Chemistry, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/6f197135c5b0a63d286350c27fb5815dd2f5d2ec