Template‐Mediated Control over Polymorphism in the Vapor‐Assisted Formation of Zeolitic Imidazolate Framework Powders and Films

Tu, Min; Kravchenko, Dmitry E.; Xia, Benzheng; Rubio‐Giménez, Víctor; Wauteraerts, Nathalie; Verbeke, Rhea; Vankelecom, Ivo F.J.; Stassin, Timothée; Egger, Werner; Dickmann, Marcel; Amenitsch, Heinz; Ameloot, Rob

doi:10.1002/anie.202014791

Cited by 25 publications

(36 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar message was conveyed by a very recent work by Tu et al [73], which described another approach to controlled MOF-CVD synthesis by using the so-called template vapor that arranges the MOF building blocks and promotes the formation of desired product. They found out that the reaction between zinc oxide and 4,5-dichloroimidazole (HdcIm) leads to the formation of either porous kinetic phase ZIF- 71…”

Section: Discussionmentioning

confidence: 60%

“…All these issues can potentially be addressed. Also, over the past year, the possibility of large-scale growth of MOFs with a structural diversity has been also demonstrated [73,74], which, we believe, will be one of the driving forces in MOF crystal engineering in the near future.…”

Section: Discussionmentioning

confidence: 82%

“…Next highly promising approach is chemical vapour deposition (CVD) [65][66][67][68][69][70][71][72][73][74]. Indeed, CVD as a non-solvent method is a well-known industrial approach for obtaining surfaces suitable for micro-and optoelectronics since the corrosion and contamination issues are solved.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Metal-Organic Frameworks for Metal-Ion Batteries: Towards Scalability

et al. 2021

View full text Add to dashboard Cite

Metal-organic frameworks (MOFs), being a family of highly crystalline and porous materials, have attracted particular attention in material science due to their unprecedented chemical and structural tunability. Next to their application in gas adsorption, separation, and storage, MOFs also can be utilized for energy transfer and storage in batteries and supercapacitors. Based on recent studies, this review describes the latest developments about MOFs as structural elements of metal-ion battery with a focus on their industry-oriented and large-scale production.

show abstract

Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 82%

See 1 more Smart Citation

Metal-Organic Frameworks for Metal-Ion Batteries: Towards Scalability

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The dense ZIF‐72 phase and amorphous materials could be formed under other conditions. [ 61 ] Figure 7f shows how ZnO@ZIF‐8 and Co(CO 3 ) 0.5 (OH)·0.11H 2 O@ZIF‐67 samples are formed through hydrothermal growth and CVD. After a two‐step reaction, they can the shape of the nanowires (Figure 7g–l).…”

Section: Fabrication Of Mof Membranesmentioning

confidence: 99%

Metal–Organic Framework Membranes: Advances, Fabrication, and Applications

Jia

Wang

et al. 2022

Small Structures

View full text Add to dashboard Cite

Metal-organic frameworks (MOFs) are porous crystal frameworks constructed by metal clusters and bridging organic ligands. [1] This class of materials not only has a highly tunable and regular pore structure, variable functionality, and internal connectivity, [2] but the superior designability enables them to accommodate the introduction of a variety of functional sites on frames, cavities, and channels. [3] These make them have important applications in many fields, including drug delivery, [4] adsorption, [5] antimicrobials, [6] electron conduction, [7] gas storage, [8] catalysis, [9] sensing, [10] and energy conversion. [11] MOFs were first developed by Hoskins and Robson via connecting discrete metal clusters and reappraising the Zn(CN) 2 and Cd(CN) 2 structure [12] and then termed MOFs in 1995. [13] Recent researches focus on the modulation of MOF chemistry to expending our understanding of the relationship between the MOFs structure, function, and applications. However, the poor adhesion and heterogeneous distribution of powdery MOFs hindered their detection in many applications. So, the development of the commercialization of MOFs was limited. [14] Membrane is a kind of material with small pore size and large specific surface area. [15] A series of structural features facilitate its rapid transfer of matters with the action of external driving forces in the field of biomedical, [16] energy storage, [17] and environmental protection. [18] The preparation of MOFs into membranes will play their role to the maximum extent [14,19] and endow more precisely pore size, pore structure, and molecular-/ion-specific groups with the membranes. [20] MOF membranes are mainly divided into two categories: pure MOF membranes and MOF/polymer hybrid membranes. Pure MOF membranes are the continuous thin layers of MOFs that are formed by growing (or depositing) on a porous support layer and/or inorganic substrate or a porous polymer substrate. These kinds of MOF membranes have the advantages of good thermal stability, high mechanical property, antifouling, antiswelling, and controllable pore structure. [21] As pure MOF membranes are composed of MOFs, the permeability and selectivity are completely determined by the pore sizes of MOFs, which endow pure MOF membranes with significant selectivity. [22] Pure MOF membranes should have the best performance in theory. However, their brittle texture, high cost, and difficulty in chemical modification still limit their practical applications. MOF/polymer hybrid membranes are composite materials that are composed of a dispersed phase (MOFs) and a continuous phase (polymer or another flexible matrix). There are two forms: MOFs embedded in the polymer matrix and MOFs on the surface of the flexible substrate. The thickness is much thicker than the diameter of the embedded porous MOFs; thus, the doped MOFs are surrounded by the polymer matrix. In this case, the selectivity and permeability of the MOF/polymer hybrid membranes are significantly dependent on the properties of the

show abstract

“…3 This work reported the vapor-phase linker exchange of ZIF-8 performed by single/ multistage exchanges to tune the gas adsorption performance. 4 This work reported control over the polymorphism of MOF thin films through the addition of template vapors.…”

mentioning

confidence: 99%

Vapor-Phase Processing of Metal–Organic Frameworks

Ameloot

et al. 2021

Acc. Chem. Res.

Self Cite

View full text Add to dashboard Cite

Porous metal−organic frameworks (MOFs), formed from organic linkers and metal nodes, have attracted intense research attention. Because of their high specific surface areas, uniform and adjustable pore sizes, and versatile physicochemical properties, MOFs have shown disruptive potential in adsorption, catalysis, separation, etc. For many of these applications, MOFs are synthesized solvothermally as bulk powders and subsequently shaped as pellets or extrudates. Other applications, such as membrane separations and (opto)electronics, require the implementation of MOFs as (patterned) thin films. Most thin-film formation methods are adapted from liquid-phase synthesis protocols. Precursor transport and nucleation are difficult to control in these cases, often leading to particle formation in solution. Moreover, the use of solvents gives rise to environmental and safety challenges, incompatibility issues with some substrates, and corrosion issues in the case of dissolved metal salts. In contrast, vapor-phase processing methods have the merits of environmental friendliness, control over thickness and conformality, scalability in production, and high compatibility with other workflows. In this Account, we outline some of our efforts and related studies in the development and application of vapor-phase processing of crystalline MOF materials (MOF-VPP). We first highlight the advances and mechanisms in the vapor-phase deposition of MOFs (MOF-VPD), mainly focusing on the reactions between a linker vapor and a metal-containing precursor layer. The characteristics of the obtained MOFs (thickness, porosity, crystallographic phase, orientation, etc.) and the correlation of these properties with the deposition parameters (precursors, temperatures, humidity, post-treatments, etc.) are discussed. Some in situ characterization methods that contributed to a fundamental understanding of the involved mechanisms are included in the discussion. Second, four vapor-phase postsynthetic functionalization (PSF) methods are summarized: linker exchange, guest loading, linker grafting, and metalation. These approaches eliminate potential solubility issues and enable fast diffusion of reactants and guests as well as a high loading or degree of exchange. Vapor-phase PSF provides a platform to modify the MOF porosity or even introduce new functionalities (e.g., luminescence photoswitching and catalytic activity). Third, since vapor-phase processing methods enable the integration of MOF film deposition into a (micro)fabrication workflow, they facilitate a range of applications with improved performance (low-k dielectrics, sensors, membrane separations, etc.). Finally, we provide a discussion on the limitations, challenges, and further opportunities for MOF-VPP. Through the discussion and analysis of the vapor-phase processing strategies as well as the underlying mechanisms in this Account, we hope to contribute to the development of the controllable synthesis, functionalization, and application of MOFs and related materials.

show abstract

Template‐Mediated Control over Polymorphism in the Vapor‐Assisted Formation of Zeolitic Imidazolate Framework Powders and Films

Cited by 25 publications

References 54 publications

Metal-Organic Frameworks for Metal-Ion Batteries: Towards Scalability

Metal-Organic Frameworks for Metal-Ion Batteries: Towards Scalability

Metal–Organic Framework Membranes: Advances, Fabrication, and Applications

Vapor-Phase Processing of Metal–Organic Frameworks

Contact Info

Product

Resources

About