Development of a ZIF-8/GO/Ag ternary composites coating with dual anticorrosive and antibacterial properties for AA2024 aluminum alloys

Sun Y, Kong W, Gao D, Kasneryk V, Serdechnova M, Zeng D, Xu C, Blawert C, Zou M, Zhang T, Zhang Y (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Materials Chemistry and Physics Elsevier

Book Volume: 360

Article Number: 132628

DOI: 10.1016/j.matchemphys.2026.132628

Abstract

Aluminum alloys readily corrode under aggressive conditions, necessitating advanced protective coatings with integrated passive and active functionalities. Herein, a ZIF-8/GO/Ag ternary composite filler synthesized via an in-situ strategy is developed, wherein Ag species are anchored onto graphene oxide (GO) to suppress ligand competition with Zn2+, while GO sheets serve as a growth platform to regulate the crystallization of ZIF-8. The composite is incorporated into an environmentally friendly sol-gel coating to provide dual anticorrosion and antibacterial protection for AA2024 aluminum protection. The resulting coating exhibits significantly enhanced corrosion resistance and excellent antibacterial activity. GO increases the diffusion resistance to corrosive species, Zn2+ and 2-methylimidazole provide active corrosion inhibition, and Ag contributes to antibacterial functionality. Density functional theory calculations support the preferential adsorption of Ag on GO, confirming the effectiveness of the anchoring strategy. This work provides a practical approach for designing MOFs-based multifunctional composite fillers and offers a promising route for advanced protective coatings with combined barrier, inhibition, and biocidal functions.

Authors with CRIS profile

Valeryia Kasneryk Sonderforschungsbereich 1411/2 Produktgestaltung disperser Systeme (SFB 1411)

Involved external institutions

Beijing Institute of Petrochemical Technology (BIPT) / 北京石油化工学院 CN China (CN) Helmholtz-Zentrum Hereon DE Germany (DE)

How to cite

APA:

Sun, Y., Kong, W., Gao, D., Kasneryk, V., Serdechnova, M., Zeng, D.,... Zhang, Y. (2026). Development of a ZIF-8/GO/Ag ternary composites coating with dual anticorrosive and antibacterial properties for AA2024 aluminum alloys. Materials Chemistry and Physics, 360. https://doi.org/10.1016/j.matchemphys.2026.132628

MLA:

Sun, Yuqi, et al. "Development of a ZIF-8/GO/Ag ternary composites coating with dual anticorrosive and antibacterial properties for AA2024 aluminum alloys." Materials Chemistry and Physics 360 (2026).

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