Preparation and Application of ZIF-8 Thin Layers

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.

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

“…pre‐coated a zinc film on the electrode substrate, and then synthesized ZIF‐8 using ADS. The continuous and dense ZIF‐8 was perfectly combined with the liquid‐infused porous surfaces (LIPS) and good hydrophobicity [50] . Different from the above researches, Silva et al.…”

“…The continuous and dense ZIF-8 was perfectly combined with the liquidinfused porous surfaces (LIPS) and good hydrophobicity. [50] Different from the above researches, Silva et al pre-blasted micro glass beads on the Cu working electrode to improve the anodic adhesion rate of MOFs during ADS. This innovative approach led to a hybrid electrode with Cu/Cu 2 OÀ Cu(BTC) membrane attached, which was used for the efficient electrocatalytic reduction of CO 2 to methanol (Figure 2d).…”

Dynamic Zinc in Liquid Metal Media as a Metal Ion Source for Highly Porous ZIF‐8 Synthesis

“…Solid metals are frequently used as anodes for the electrosynthesis of ZIF‐8. [ 11 ] However, using solid anodes generally produces a thick layer of ZIFs as the reaction proceeds, which passivates the anodization of the metal. As a result, the reaction would gradually deaccelerate or terminate.…”

“…Solid metals are frequently used as anodes for the electrosynthesis of ZIF-8. [11] However, using solid anodes generally…”

V2O5@ZIF-8 with a Stable Structure and a Fast Ion Diffusion Channel as a Promising Cathode Material for Lithium-Ion Batteries

“…Zeolitic imidazolate framework-8 (ZIF-8) has high ionic conductivity (3.16 × 10 –4 S cm –1 ). − The support of electrode materials on the high ionic conductivity ZIF-8 provides the required ionic conductivity, relatively simple composition, and a high surface area due to ZIF-8 nanoporous channels. ZIF-8 is easy to synthesize in all kinds of solutions at room temperature.…”