Preparation and Application of ZIF-8 Thin Layers

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Date
2021
Volume
11
Issue
9
Journal
Applied Sciences
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Basel : MDPI
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Abstract

Herein we compare various preparation methods for thin ZIF-8 layers on a Cu substrate for application as a host material for omniphobic lubricant-infused surfaces. Such omniphobic surfaces can be used in thermal engineering applications, for example to achieve dropwise condensation or anti-fouling and anti-icing surface properties. For these applications, a thin, conformal, homogeneous, mechanically and chemically stable coating is essential. In this study, thin ZIF-8 layers were deposited on a Cu substrate by different routes, such as (i) electrochemical anodic deposition on a Zn-covered Cu substrate, (ii) doctor blade technique for preparation of a composite layer containing PVDF binder and ZIF-8, as well as (iii) doctor blade technique for preparation of a two-layer composite on the Cu substrate containing a PVDF-film and a ZIF-8 layer. The morphology and topography of the coatings were compared by using profilometry, XRD, SEM and TEM techniques. After infusion with a perfluorinated oil, the wettability of the surfaces was assessed by contact angle measurements, and advantages of each preparation method were discussed.

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Schernikau, M., Sablowski, J., Gonzalez Martinez, I. G., Unz, S., Kaskel, S., & Mikhailova, D. (2021). Preparation and Application of ZIF-8 Thin Layers (Basel : MDPI). Basel : MDPI. https://doi.org//10.3390/app11094041
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CC BY 4.0 Unported