Growth of ZIF-8 on molecularly ordered 2-methylimidazole/single-walled carbon nanotubes to form highly porous, electrically conductive composites

Ellis, James E.; Zeng, Zidao; Hwang, Sean I.; Li, Shaobo; Luo, Tian‐Yi; Burkert, Seth C.; White, David L.; Rosi, Nathaniel L.; Gassensmith, Jeremiah J.; Star, Alexander

doi:10.1039/c8sc03987a

Cited by 39 publications

(34 citation statements)

References 52 publications

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“…1. (a), which agrees well with the XRD diffraction peaks simulated by Senkovska et al [9] The peak broadening phenomenon was observed, and it is attributed mainly to the effect of the small crystal sizes [9,10]. As shown in Fig.…”

Section: Resultssupporting

confidence: 89%

2D ultrathin carbon nanosheets derived from interconnected Al-MOF as excellent hosts to anchor selenium for Li-Se battery

Jin

Zou

et al. 2019

Materials Letters

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Alleviating volume expansion of electrodes and improving utilization of the active materials have become key problems restricting a successful commercialization of lithium−selenium batteries. In this paper, a 2D ultrathin carbon nanosheets derived from interconnected MOF is designed for the first time. Such carbon nanosheets are composed by parallel stacked 2D sub-units, and this unique hierarchical porous architecture is beneficial for buffering the volume expansion and for improving the utilization rate of active materials. Therefore, the cathode displays an excellent cycling stability with a reversible capacity of 347.3 mAh g -1 at 2C after 240 cycles.

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Section: Resultssupporting

confidence: 89%

2D ultrathin carbon nanosheets derived from interconnected Al-MOF as excellent hosts to anchor selenium for Li-Se battery

Jin

Zou

et al. 2019

Materials Letters

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“…Similarly, ZIF‐8 can also be coated on SWCNTs to form ZIF‐8/SWCNT composites, which demonstrated high microporosity and electrical conductivity. [ 74 ] Besides, Coporphyrin MOFs can also be supported on CNT to form Hf 12 –CoDBP/CNT assembly (Figure 8d,e). [ 75 ] As a result, the covalent attachment between MOFs and CNTs facilitated the efficient electron transfer between CNT and Coporphyrin active sites, intriguing MOF/CNT heterostructures with high activity in hydrogen evolution reaction (HER) in acidic media.…”

Section: The Design and Synthesis Of Conductive Mofsmentioning

confidence: 99%

Conductive Metal–Organic Frameworks: Design, Synthesis, and Applications

et al. 2020

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fabricated. Combined with controlled synthesis, MOF materials are endowed with abundant various of structures, morphologies, and properties. [8-11] In addition, the as-prepared MOFs can be artificially modified via postsynthetic approaches utilizing their available pores and active sites of metal clusters or linkers. [12,13] As a result, not only the number of MOFs is further increased but also many interesting properties, such as high specific surface areas, tailorable pore sizes, modifiable structures, and properties are endowed with MOFs, which make them become potential candidates in storage/separation, catalysis, sensing, etc. [14,15] Another important application of MOFs is that they can act as conductive materials for electrocatalysis, sensing, and energy conversion, etc. [16-19] The existence of quantitative amounts of active metal centers, permanent porosity, and structural rigidity can facilitate surface contact and mass transfer as well as increase catalysis stability, making MOFs as ideal electrocatalysts. [20-22] In addition, they possess high specific surface areas, tunable bandgaps, and good charge transport properties, which extend their applications in sensing and energy storage. [23] Besides, the morphologies and characteristics of MOFs can be artificially modified to form 1D, 2D, or 3D structures via liquid phase selfassembly, physical/chemical exfoliation, layer-by-layer assembly, etc., promoting their applications in electrochemical devices and electronics. [24-26] With further structural design through postsynthesized modification, the performances of MOFs can be largely improved, facilitating their applications as conductive materials. [27-29] However, most MOFs are intrinsically electrically insulated, which seriously hinders their electrochemical applications. [29] The connected rigid metal ions and redox-inactive organic ligands increase the energy barrier for electron transfer, making them as electrical insulators. To overcome the drawbacks of MOFs, many feasible strategies have been adopted to promote the electron transfer in the structures of MOFs. [27,30-32] The high electrical conductivity of MOFs can be realized by integrating the conjugated planes or 1D chains in the structures, which relies on particular structural designs. [33-37] The conductivity of the MOFs can also be increased via doping with guest Metal-organic frameworks (MOFs) have aroused worldwide interest over the last two decades due to their various excellent properties, such as porosity, modifiability, stability, etc. Based on these unique features, they have been widely exploited for applications from electrocatalysis to electrochemical devices. However, most MOFs are inherently insulated due to the lack of free charge carriers and low-energy barriers for charge transfer, which largely restricts their further electrochemical applications. By imparting MOFs with electrical conductivity, their electrochemical process and catalysis efficiency can be effectively improved. Similarly, their applications in sensors, secon...

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“…To that end, we turned to metal-organic frameworks (MOFs), which are a class of crystalline porous coordination polymers constructed from the interlinking between metal centers and monomeric organic ligands. [9][10][11] Through thoughtful selection of the organic ligand and metal center, MOFs can be modulated sophisticatedly towards a wide array of applications 12 such as gas separation/sensing/storage, [13][14][15] catalysis, [16][17][18] and protein stabilization. [19][20][21] In recent years, several MOFs displaying zeolitic topologies have been reported, 22 the most ubiquitous being zeolitic-imidazole framework eight (ZIF-8), which consists of the coordination between Zn 2+ and 2-methyl imidazole (HMIM).…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Supramolecular Membrane Protein-Lipid Bilayer Assemblies Through Immobilization in a Crystalline Exoskeleton

Herbert¹,

Abeyrathna²,

Abeyrathna³

et al. 2021

Preprint

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<div> <div> <div> <p>Artificial native-like lipid bilayer systems constructed from phospholipids assembling into unilamel- lar liposomes allow the reconstitution of detergent-solubilized transmembrane proteins into supramolecular lipid-protein assemblies called proteoliposomes, which mimic cellular membranes. Stabilization of these com- plexes remains challenging because of their chemical composition, the hydrophobicity and structural instabil- ity of membrane proteins, and the lability of interactions between protein, detergent, and lipids within micelles and lipid bilayers. In this work we demonstrate that metastable lipid, protein-detergent, and protein-lipid su- pramolecular complexes can be successfully generated and immobilized within zeolitic-imidazole framework- 8 (ZIF-8) to enhance their stability against chemical and physical stressors. Upon immobilization in ZIF-8 bio- composites, blank liposomes, and model transmembrane metal transporters in detergent micelles or embed- ded in proteoliposomes resist elevated temperatures, exposure to chemical denaturants, aging, and mechanical stresses. Extensive morphological and functional characterization of the assemblies upon exfoliation reveal that all these complexes encapsulated within the framework maintain their native morphology, structure, and activity, which is otherwise lost rapidly without immobilization. </p> </div> </div> </div>

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Growth of ZIF-8 on molecularly ordered 2-methylimidazole/single-walled carbon nanotubes to form highly porous, electrically conductive composites

Abstract: ZIF-8 crystals grow from SWCNT sidewalls to form a microporous, electrically conductive composite.

Cited by 39 publications

References 52 publications

2D ultrathin carbon nanosheets derived from interconnected Al-MOF as excellent hosts to anchor selenium for Li-Se battery

2D ultrathin carbon nanosheets derived from interconnected Al-MOF as excellent hosts to anchor selenium for Li-Se battery

Conductive Metal–Organic Frameworks: Design, Synthesis, and Applications

Stabilization of Supramolecular Membrane Protein-Lipid Bilayer Assemblies Through Immobilization in a Crystalline Exoskeleton

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