Microwave-Assisted Synthesis of Porous Composites MOF–Textile for the Protection against Chemical and Nuclear Hazards

Couzon, Nelly; Ferreira, Manuela; Duval, Sylvain; El-Achari, Ahmida; Campagne, Christine; Loiseau, Thierry; Volkringer, Christophe

doi:10.1021/acsami.2c03247

Cited by 48 publications

(27 citation statements)

References 67 publications

(108 reference statements)

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“…The abnormal shape of MZIF8 particles was attributed to the high energy density in microwave synthesis. The focusing of high-intensity energy in a short time had a large impact on the nucleation growth of MZIF8 and the interaction with the substrate. − …”

Section: Resultsmentioning

confidence: 99%

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂

Wang

Bao

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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The two-electron oxygen reduction reaction (2e– ORR) is an environmentally friendly approach to the production of H2O2. Self-growing gas diffusion electrodes offer a lot of advantages like reduction of adhesive use, and lower electron and mass transfer resistance. However, MOF self-growing gas diffusion electrodes are rarely used for the production of hydrogen peroxide. Herein, a self-growing hydrophobic composite gas diffusion electrode has been proposed, consisting of densely distributed MZIF8 and graphite felt support (MGF). MGF performs well in a wide range of pH and potential; the H2O2 yields in 0.5 M Na2SO4 and 0.1 M KOH are 980.86 and 981.74 mg·L–1·h–1, respectively. In addition, the highest Faraday efficiencies achieved by MGF in the two solutions are 85.75% and 89.88%, respectively. This significant performance is attributed to the hydrophobic microenvironment and the ordered distribution of the N–Zn–O bond located between the MZIF8 and graphite felt support. This work presents a promising method for the production of H2O2 with high selectivity, simple preparation, low cost, and wider application.

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Section: Resultsmentioning

confidence: 99%

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂

Wang

Bao

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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“…The composite with 3% of Cr is selected because it has the largest specific surface area and is beneficial to catalysis. Moreover, the nanoparticles remained even when the composite was washed vigorously, due to strong intercrystalline interactions and strong bonds between the MOFs and the fibers [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

N-Heterocyclic Carbene Silver Complex Modified Polyacrylonitrile Fiber/MIL-101(Cr) Composite as Efficient Chiral Catalyst for Three-Component Coupling Reaction

et al. 2022

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Complex asymmetric synthesis can be realized by the chiral induction of amino acids in nature. It is of great significance to design a new biomimetic catalytic system for asymmetric synthesis. In this context, we report the preparation and characterization of the composite of polyacrylonitrile fiber (PANF) and metal-organic framework to catalyze the chiral synthesis of propargylamines. A confined microenvironment is established with N-heterocyclic carbene (NHC) silver complex-supported PANF and D-proline-encapsulated MIL-101(Cr). This novel supported catalyst demonstrated high activity in addition to excellent stereoselectivity in the three-component reaction between alkynes, aldehydes, and amines (A3). The regeneration can be realized by adsorption of D-proline again when the stereoselectivity decreases after recycle uses. By regulating the confined microenvironment on the composite, the activity and selectivity of the catalytic system are improved with turnover numbers of up to 2800 and 98% ee. The biomimetic catalytic system to A3 coupling reaction is systematically studied, and the synergistic catalytic mechanism between NHC-Ag and D-proline in the confined microenvironment is revealed.

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“…Despite the 1993 Chemical Weapons Convention, which outlaws the production and use of chemical weapons and their precursors, the use of CWAs remains a threat. There have been many experimental and theoretical investigations conducted recently on the usage of MOFs for capture − and decomposition − of CWAs. In particular, several zirconium-based MOFs have been concluded to be efficient materials for capturing sarin, − one of the most toxic CWAs.…”

Section: Introductionmentioning

confidence: 99%

Closer Look at Adsorption of Sarin and Simulants on Metal–Organic Frameworks

Emelianova

Reed

Basharova

et al. 2023

ACS Appl. Mater. Interfaces

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The development of effective protection against exposure to chemical warfare agents (CWAs), such as sarin, relies on studies of its adsorption on the capturing materials and seeking candidates capable of adsorbing large amounts of sarin gas. Many metal−organic frameworks (MOFs) are promising materials for the effective capture and degradation of sarin and simulant substances. Among the simulants capable of mimicking thermodynamic properties of the agent, not all of them have been investigated on the ability to act similarly in the adsorption process, in particular, whether the agent and a simulant have similar mechanisms of binding to the MOF surface. Molecular simulation studies not only provide a safe way to investigate the aforementioned processes but can also help reveal the mechanisms of interactions between the adsorbents and the adsorbing compounds at the molecular level. We performed Monte Carlo simulations of the adsorption of sarin and three simulants, dimethyl methylphosphonate (DMMP), diisopropyl methylphosphonate (DIMP), and diisopropyl fluorophosphate (DIFP), on selected MOFs that have previously shown strong capabilities to adsorb sarin. On the basis of the calculated adsorption isotherms, enthalpy of adsorption, and radial distribution functions, we revealed common mechanisms among the particularly efficient adsorbents as well as the ability of simulants to mimic them. The findings can help in selecting a suitable simulant compound to study CWA adsorption on MOFs and guide further synthesis of efficient MOFs for the capture of organophosphorus compounds.

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Microwave-Assisted Synthesis of Porous Composites MOF–Textile for the Protection against Chemical and Nuclear Hazards

Cited by 48 publications

References 67 publications

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂

N-Heterocyclic Carbene Silver Complex Modified Polyacrylonitrile Fiber/MIL-101(Cr) Composite as Efficient Chiral Catalyst for Three-Component Coupling Reaction

Closer Look at Adsorption of Sarin and Simulants on Metal–Organic Frameworks

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Microwave-Assisted Synthesis of Porous Composites MOF–Textile for the Protection against Chemical and Nuclear Hazards

Cited by 48 publications

References 67 publications

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H2O2

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H2O2

N-Heterocyclic Carbene Silver Complex Modified Polyacrylonitrile Fiber/MIL-101(Cr) Composite as Efficient Chiral Catalyst for Three-Component Coupling Reaction

Closer Look at Adsorption of Sarin and Simulants on Metal–Organic Frameworks

Contact Info

Product

Resources

About

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂

Self-Growing MZIF8/GDE Bonding by N–Zn–O Boosts Electrochemical Oxygen Reduction to H₂O₂