Bilayer MOF@MOF and MoO species functionalization to access prominent stability and selectivity in cascade-selective biphase catalysis

Niu, Qingtao; Jin, Manman; Liu, Guodong; Lv, Zhiguo; Chen, Si; Hong, Han

doi:10.1016/j.mcat.2021.111818

Cited by 5 publications

(4 citation statements)

References 47 publications

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“…[168][169][170][171] Additionally, MOFon-MOFs exhibit good chemical and thermal stability, making them suitable for applications under various conditions. [172][173][174][175][176][177][178] Lastly, the synthesis methods for MOF-on-MOFs are relatively flexible and diverse, allowing for the production of materials with different structures and morphologies to meet various application demands. [179][180][181][182][183][184][185][186]93] The hierarchical pore structures and active sites of MOF-on-MOFs contribute to their outstanding performance in adsorption, separation, catalysis, sensing, and energy-related applications (Scheme 5).…”

Section: Applicationsmentioning

confidence: 99%

Interfacial Engineering of Heterogeneous Reactions for MOF‐on‐MOF Heterostructures

Mao,

Qian

2023

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Metal–organic frameworks (MOFs), as a subclass of porous crystalline materials with unique structures and multifunctional properties, play a pivotal role in various research domains. In recent years, significant attention has been directed toward composite materials based on MOFs, particularly MOF‐on‐MOF heterostructures. Compared to individual MOF materials, MOF‐on‐MOF structures harness the distinctive attributes of two or more different MOFs, enabling synergistic effects and allowing for the tailored design of diverse multilayered architectures to expand their application scope. However, the rational design and facile synthesis of MOF‐on‐MOF composite materials are in principle challenging due to the structural diversity and the intricate interfaces. Hence, this review primarily focuses on elucidating the factors that influence their interfacial growth, with a specific emphasis on the interfacial engineering of heterogeneous reactions, in which MOF‐on‐MOF hybrids can be conveniently obtained by using pre‐fabricated MOF precursors. These factors are categorized as internal and external elements, encompassing inorganic metals, organic ligands, lattice matching, nucleation kinetics, thermodynamics, etc. Meanwhile, these intriguing MOF‐on‐MOF materials offer a wide range of advantages in various application fields, such as adsorption, separation, catalysis, and energy‐related applications. Finally, this review highlights current complexities and challenges while providing a forward‐looking perspective on future research directions.

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Section: Applicationsmentioning

confidence: 99%

Interfacial Engineering of Heterogeneous Reactions for MOF‐on‐MOF Heterostructures

Mao,

Qian

2023

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“…The conceptual idea is simple: just like a skyscraper has apartments in some floors and offices in others, a controlled distribution of different functionalities within one framework would open a range of new possibilities to incorporate multiple and consecutive functions. The development of this idea of functional compartmentalization within MOFs is already quite sophisticated, as layered materials have been explored. − However, they usually contain frameworks with different unit cells, which results in lattice mismatching and partial defects of the coordination bonds on the interlayer between the two frameworks. Further, there are only a few studied examples of COF–MOF composites − and 2D COF layered materials, but all of these examples fail to generate a material that is regularly covalently linked, detracting from the advantages of reticular chemistry.…”

Section: Introductionmentioning

confidence: 99%

Layered 3D Covalent Organic Framework Films Based on Carbon–Carbon Bonds

et al. 2023

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The development of covalent organic frameworks (COFs) during the past decades has led to a variety of promising applications within gas storage, catalysis, drug delivery, and sensing. Even though most described synthesis methods result in powdery COFs with uncontrolled grain size, several approaches to grow COF films have recently been explored. However, in all COFs so far presented, the isolated materials are chemically homogeneous, with all functionalities homogeneously distributed throughout the entire material. Strategies to synthetically manipulate the spatial distribution of functionalities in a single film would be game changing. Specifically, this would allow for the introduction of local functionalities and even consecutive functions in single frameworks, thus broadening their synthetic versatility and application potential. Here, we synthesize two 3D crystalline COF films. The frameworks, the ionic B-based and neutral C-based COFs, have similar unit cell parameters, which enables their epitaxial stacking in a layered 3D COF film. The film growth was monitored in real time using a quartz crystal microbalance, showing linear growth with respect to reaction time. The high degree of polymerization was confirmed by chemical analysis and vibrational spectroscopy. Their polycrystalline and anisotropic natures were confirmed with grazing incidence X-ray diffraction. We further expand the scope of the concept by making layered films from COF-300 and its iodinated derivative. Finally, the work presented here will pave the path for multifunctional COF films where concurrent functionalities are embedded in the same crystalline material.

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“…MOFs have various advantages over typical porous materials, such as a diverse composition and micro-/nanoscale structures [17], a large specific surface area [18], or a high porosity [19]. MOFs' structural properties may be freely tailored; thus, they can be applied in various fields, including gas storage and separation [20], drug delivery [21][22][23], catalysis [24,25] or electrocatalysis [26], water purification [27], or even for micro-supercapacitors [28].…”

Section: Introductionmentioning

confidence: 99%

Cation-Exchange in Metal-Organic Framework as a Strategy to Obtain New Material for Ascorbic Acid Detection

et al. 2022

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Ascorbic acid (AA) is an important biomolecule, the deficiency or maladjustment of which is associated with the symptoms of many diseases (e.g., cardiovascular disease or cancer). Therefore, there is a need to develop a fluorescent probe capable of detecting AA in aqueous media. Here, we report the synthesis, structural, and spectroscopic characterization (by means of, e.g., XRD, XPS, IR and Raman spectroscopy, TG, SEM, and EDS analyses), as well as the photoluminescent properties of a metal‒organic framework (MOF) based on Cu2+ and Eu3+ ions. The ion-exchange process of the extraframework cation in anionic Cu-based MOF is proposed as an appropriate strategy to obtain a new material with a nondisturbed structure and a sensitivity to interaction with AA. Accordingly, a novel Eu[Cu3(μ3-OH)(μ3-4-carboxypyrazolato)3] compound for the selective optical detection of AA with a short detection time of 5 min is described.

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Bilayer MOF@MOF and MoO species functionalization to access prominent stability and selectivity in cascade-selective biphase catalysis

Cited by 5 publications

References 47 publications

Interfacial Engineering of Heterogeneous Reactions for MOF‐on‐MOF Heterostructures

Interfacial Engineering of Heterogeneous Reactions for MOF‐on‐MOF Heterostructures

Layered 3D Covalent Organic Framework Films Based on Carbon–Carbon Bonds

Cation-Exchange in Metal-Organic Framework as a Strategy to Obtain New Material for Ascorbic Acid Detection

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