Exfoliation of metal-organic framework nanosheets using surface acoustic waves

Liu, Xia; Jia, Qi; Fu, Yong Qing; Zheng, Tengfei

doi:10.1016/j.ultsonch.2022.105943

Cited by 20 publications

(6 citation statements)

References 52 publications

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“…It was found that the increase in acetic acid concentration significantly inhibited the growth of Cu-NDC in the [100] direction, prompting eventual growth along the [001] direction to form nanorods. In 2016, Pachfule et al successfully synthesized MOF-74-Rod at room temperature using a unique modulator-assisted approach to stabilize the active metal sites on the surface of MOF crystals by introducing salicylic acid modulators into the system to guide the growth of MOF in rodlike morphology [Figure 5A] [129] . They then used KOH-assisted sonication, where K + was inserted into the carbon nanorods in a disordered stack during solution-based sonication, and again during subsequent heat treatment, where the K + containing nanorods were unfolded to form a nanoribbon structure.…”

Section: Modifiers-induced Growth Methodsmentioning

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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Section: Modifiers-induced Growth Methodsmentioning

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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“…[57][58][59][60][61][62][63][64][65][66] Specifically, the construction of 2D MOF is categorized into top-down and bottom-up strategies. [67][68][69][70][71][72][73] A top-down approach refers to a series of methods that synthesize the 2D nanostructures in which MOFs with lamellar morphologies are used as a starting material. Analogous to the synthesis of traditional 2D materials, numerous MOFs can be transformed into atomically thin and highly crystalline nanosheets using exfoliation techniques.…”

Section: Synthetic Strategies For 2d Mofmentioning

confidence: 99%

Current Progress in 2D Metal–Organic Frameworks for Electrocatalysis

et al. 2022

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The 2D nanosheets of metal–organic frameworks (MOFs) have recently emerged as a promising material that makes them valuable in widespread electrocatalytic fields due to their atomic‐level thickness, abundant active sites, and large surface area. Efficient electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and overall water splitting are highly desired with low overpotentials to promote the industrial applications of energy conversion and devices. 2D MOF nanostructures provide long‐term stability and high electrical conductivity to enhance catalyst activity and durability. This review briefly summarizes the synthesis and electrocatalytic applications of 2D MOF for HER/OER/water splitting. More attention is focused on the synthetic strategies of 2D MOF and their derivatives. The catalytic performance and superior properties of these materials are highlighted. The outperformance of these materials originates from the rational design, myriad of abundant active sites, and atomic‐level thickness. The current and future challenges in this field and the scientific perspectives to overcome these challenges are highlighted. It is suggested that the construction of 2D MOF nanostructures can develop a state‐of‐the‐art electrocatalyst in energy and environmental division.

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“…Moreover, the chemical/electrochemical method has strong oxidative ability and can break coordination bonds between the pillared layer and release them to form 2D nanosheets at various conditions. Zhou et al reported a synthesis of layer structured MOF of (Zn 2 (PdTCPP)-(TCPP= tetrakis(4-carboxyphenyl)-porphyrin) by using the chemical exfoliation and ligand intercalation approach [47]. In this work, 4,4-dipyridyl disulfide as organic ligand was used as intercalated process instead of Li ions.…”

Section: Overview and Synthesis Approach Of 2d Tm-based Mofsmentioning

confidence: 99%

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

Nivetha

Sharma

Jana

et al. 2023

International Journal of Energy Research

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Metal–organic frameworks (MOFs), as a new generation of intrinsically porous extended crystalline materials formed by coordination bonding between the organic ligands and metal ions or clusters, have attracted considerable interest in many applications owing to their high porosity, diverse structures, and controllable chemical structure. Recently, 2D transition-metal- (TM-) based MOFs have become a hot topic in this field because of their high aspect ratio derived from their large lateral size and small thickness, as well as the advantages of MOFs. Moreover, 2D TM-based MOFs can act as good precursors to construct heterostructures with high electrical conductivity and abundant active sites for a range of applications. This review comprehensively introduces the widely adopted synthesis strategies of 2D TM-based MOFs and their composites/derivatives. In addition, this paper summarizes and highlights the recent advances in energy conversion and storage, including the hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, CO2 reduction reaction, urea oxidation reaction, batteries, and supercapacitors. Finally, the challenges in developing these intriguing 2D layered materials and their composites/derivatives are examined, and the possible proposals for future directions to enhance the energy conversion and storage performance are reviewed.

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Exfoliation of metal-organic framework nanosheets using surface acoustic waves

Cited by 20 publications

References 52 publications

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

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

Current Progress in 2D Metal–Organic Frameworks for Electrocatalysis

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

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