TY  - JOUR
AU  - Kasneryk, Valeryia
AU  - Rohr, Hauke
AU  - Chen, Qianqian
AU  - Wieland, D. C. Florian
AU  - Davydok, Anton
AU  - Gazenbiller, Eugen
AU  - Serdechnova, Maria
AU  - Blawert, Carsten
AU  - Stock, Norbert
AU  - Zheludkevich, Mikhail L.
TI  - Effect of preparation conditions on the properties of ZIF-8@ZnO PEO coating
JO  - Journal of materials research and technology
VL  - 37
SN  - 2238-7854
CY  - Rio de Janeiro
PB  - Elsevier
M1  - PUBDB-2025-02385
SP  - 4382 - 4395
PY  - 2025
AB  - Recently, metal organic frameworks (MOFs), crystalline porous materials, demonstrated their effectiveness for the post-modification of coatings obtained by plasma electrolytic oxidation (PEO) treatment. The post-modification leads to the sealing of PEO porosity as well as endowing the coating with active corrosion protection ability. In the current work, ZnO-based PEO coatings on the surface of Z1 Zn alloy was partially converted into ZIF-8 by treatment with vapours of 2-methylimidazole (2-HmIm). It was found that the degree of PEO-to-ZIF-8 conversion and the size of the ZIF-8 particles increased with an increase in temperature from 120 to 150 °C, and with an extension of the treatment with 2-HmIm from 5 h to 60 h. Furthermore, the sealing of the PEO pores can be controlled by applying different treatment conditions. It was also found that such treatments resulted in the enhancement of the corrosion resistance of the materials. However, the key factor determining the performance of the final ZIF-8@PEO hybrid coatings was a balance between the level of ZnO-based PEO dissolution and crystallisation of ZIF-8 phase. 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.jmrt.2025.07.038
UR  - https://bib-pubdb1.desy.de/record/633259
ER  -