Current Progress and Scalable Approach toward the Synthesis of 2D Metal–Organic Frameworks

Chen, Jeffrey E.; Yang, Zhen‐Jie; Koh, Hoong Uei; Shen, Jie; Cai, Yichen; Yamauchi, Yusuke; Yeh, Li‐Hsien; Tung, Vincent; Wu, Kevin C.‐W.

doi:10.1002/admi.202102560

Cited by 14 publications

(10 citation statements)

References 114 publications

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“…[ 12b,20 ] Irradiation of the colloid suspension of Ce MV + ‐NS by a laser beam exhibited the obvious Tyndall effect ( Figure a), indicating the occurrence of exfoliation of 3D layered Ce MV + and good monodispersity of Ce MV + ‐NS nanosheets. [ 21 ] The (−402) and (020) crystal faces of Ce MV + are attributed to the stacking plane from the a , b ‐axis in 2D layer. The peak at 22.4° assigned to (−802) face is ascribed to the 2D plane perpendicular to the c ‐axis.…”

Section: Resultsmentioning

confidence: 99%

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation

Zhao

Tang

et al. 2023

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With the inert and nonpolarized nature, the direct activation and oxidation of inert CH bonds into value-added products under mild conditions is still a more profound challenge when one also targets the desirable outcome of sustainability. [1] Of the reported nanosized catalytic materials, metal-organic frameworks (MOFs) have become an ideal scaffold in catalytic various organic reactions, because of their inherent regular The development of methodologies for inducing and tailoring activities of catalysts is an important issue in various catalysis. The ultrathin 2D monolayer metal-organic framework (MOF) nanosheets with more accessible active sites and faster diffusion obtained by exfoliating 3D layered MOFs are of great potential as heterogeneous catalysts, but the rational design and preparation of 3D layered MOFs remains a grand challenge. Herein, a novel weak electrostatic interaction strategy to construct a 3D layered cerium-bearing MOF by coordinating chlorine-capped cerium nodes and linear photoactive methyl viologen (MV + ) organic linkers is used. Under multiphoton excitation, the MV + ligands and CeCl chromophores are triggered consecutively to form the high activity chlorine radical (Cl • ) for activation of inert C(sp 3 )H bond through a hydrogen atom transfer. Benefiting from framework confinement effects, synergistic effects of two active sites and/or flexibility of the ultrathin framework nanosheets with high surface utilization, the observed activities increase in the order CeCl 3 /MV + < bulk 3D MOF crystals < 2D MOF nanosheets in photocatalysis. This work not only contributes a new strategy to construct 3D layered MOFs and their ultrathin nanosheets but also paves the way to use nanostructured MOFs to handle synergy of multiple molecular catalysts.

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Section: Resultsmentioning

confidence: 99%

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation

Zhao

Tang

et al. 2023

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“…Modulation Synthesis: Modulators are tiny dynamic molecules that compete with metal sites with for organic ligands, and control the formation of MOFs, and perform roles comparable to those of surfactants. [116,117] By introducing proper modulators into the reactions, even the most negligible variations in the reaction conditions will significantly affect the final products. [118] The small molecule of acetic acid was utilized to directly impact the coordination equilibria in the coordination modulation approach developed by Tsuruoka et al to regulate the crystal development of nanosized MOF crystals (Figure 6c).…”

Section: Chemical Methodsmentioning

confidence: 99%

Recent Progress in 2D Metal‐Organic Framework‐Related Materials

Xie,

Wu,

Shi

et al. 2023

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Abstract2D metal‐organic frameworks‐based (2D MOF‐related) materials benefit from variable topological structures, plentiful open active sites, and high specific surface areas, demonstrating promising applications in gas storage, adsorption and separation, energy conversion, and other domains. In recent years, researchers have innovatively designed multiple strategies to avoid the adverse effects of conventional methods on the synthesis of high‐quality 2D MOFs. This review focuses on the latest advances in creative synthesis techniques for 2D MOF‐related materials from both the top‐down and bottom‐up perspectives. Subsequently, the strategies are categorized and summarized for synthesizing 2D MOF‐related composites and their derivatives. Finally, the current challenges are highlighted faced by 2D MOF‐related materials and some targeted recommendations are put forward to inspire researchers to investigate more effective synthesis methods.

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“…Although top-down methods have wide applicability in the preparation of various UMOF NSs, they often face difficulties in controlling the thickness and size of 2D materials [184,185] . In contrast, bottom-up approaches offer the advantage of being more efficient, scalable and flexible.…”

Section: Bottom-top Approachesmentioning

confidence: 99%

Recent progress in strategies for preparation of metal-organic frameworks and their hybrids with different dimensions

2022

Chem Synth

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As a new kind of organic-inorganic hybrid porous material, metal-organic frameworks (MOFs) exhibit a wide application prospect in gas storage and separation, catalysis and sensing due to their characteristics of large specific surface area, high porosity and coordination unsaturation. As more and more types of MOFs were reported, the synthetic strategies of MOFs-based materials have become a hot research topic. According to the morphological dimension, MOFs can be roughly divided into one-dimensional, two-dimensional and three-dimensional structures. Herein, we summarize the synthetic methods and principles of MOFs from multi-dimensional perspectives, and explore the growth mechanism of MOFs with different morphologies based on dynamic and thermodynamic tuning. Finally, based on the above summaries, the challenges and opportunities of MOFs in the future are discussed.

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Current Progress and Scalable Approach toward the Synthesis of 2D Metal–Organic Frameworks

Cited by 14 publications

References 114 publications

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation

Recent Progress in 2D Metal‐Organic Framework‐Related Materials

Recent progress in strategies for preparation of metal-organic frameworks and their hybrids with different dimensions

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Current Progress and Scalable Approach toward the Synthesis of 2D Metal–Organic Frameworks

Cited by 14 publications

References 114 publications

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp3)H Bond through Multiphoton Excitation

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp3)H Bond through Multiphoton Excitation

Recent Progress in 2D Metal‐Organic Framework‐Related Materials

Recent progress in strategies for preparation of metal-organic frameworks and their hybrids with different dimensions

Contact Info

Product

Resources

About

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation

Ultrathin 2D Cerium‐Based Metal–Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp³)H Bond through Multiphoton Excitation