A5019554331- Metal-Organic Frameworks: Synthesis and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Polyoxometalates: Synthesis and Applications
- Covalent Organic Framework Applications
- Catalysis and Hydrodesulfurization Studies
- Crystallography and molecular interactions
- Catalytic Processes in Materials Science
- Zeolite Catalysis and Synthesis
- Lanthanide and Transition Metal Complexes
- Chemical Synthesis and Characterization
- Chemical Synthesis and Reactions
- MXene and MAX Phase Materials
- Carbon dioxide utilization in catalysis
- Metal complexes synthesis and properties
- Membrane Separation and Gas Transport
- Inorganic Chemistry and Materials
- Inorganic Fluorides and Related Compounds
- Machine Learning in Materials Science
- Organic and Molecular Conductors Research
- Layered Double Hydroxides Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Nanocluster Synthesis and Applications
- Supramolecular Chemistry and Complexes
Janssen (United States)
2025
KU Leuven
2012-2021
Zdravstveni centar
2016
Institute of Catalysis and Petrochemistry
2016
Nanjing Tech University
2015
Ruhr University Bochum
2015
The Synergetic Innovation Center for Advanced Materials
2015
Fischer (Germany)
2015
Defect engineering in metal-organic frameworks (MOFs) is an exciting concept for tailoring material properties, which opens up novel opportunities not only sorption and catalysis, but also controlling more challenging physical characteristics such as band gap well magnetic electrical/conductive properties. It to structurally characterize the inherent or intentionally created defects of various types, there have so far been few efforts comprehensively discuss these issues. Based on selected...
The catalytic activity of the zirconium terephthalate UiO-66(Zr) can be drastically increased by using a modulation approach. combined use trifluoroacetic acid and HCl during synthesis results in highly crystalline material, with partial substitution terephthalates trifluoroacetate. Thermal activation material leads not only to dehydroxylation hexanuclear Zr cluster but also post-synthetic removal trifluoroacetate groups, resulting more open framework large number sites. Consequently, is...
A series of nine Ce(<sc>iv</sc>)-based metal organic frameworks with the UiO-66 structure containing linker molecules different sizes and functionalities were obtained under mild synthesis conditions short reaction times.
Abstract The synthesis of the commercially available aluminum fumarate sample A520 has been optimized and its structure analyzed through a combination powder diffraction, solid‐state NMR spectroscopy, molecular simulation, IR thermal analysis. is an analogue MIL‐53(Al)‐BDC solid, but with more rigid behavior. differences between commercial samples in terms defects have investigated by situ spectroscopy correlated to their catalytic activity for ethanol dehydration.
Mixed-matrix membranes (MMMs) composed of polyimide (PI) and metal–organic frameworks (MOFs) were synthesized using Matrimid as the polymer zirconium terephthalate UiO-66 filler. The modulation approach, combined with use amine-functionalized linkers, was used for synthesis MOF fillers in order to enhance intrinsic separation performance improve particle–PI compatibility. presence amine groups on outer surface introduced either through linker, modulator, or both led covalent linking between...
The ability of metal-organic frameworks (MOFs) to gelate under specific synthetic conditions opens up new opportunities in the preparation and shaping hierarchically porous MOF monoliths, which could be directly implemented for catalytic adsorptive applications. In this work, we present first examples xero- or aerogel monoliths consisting solely nanoparticles several prototypical Zr4+-based MOFs: UiO-66-X (X = H, NH2, NO2, (OH)2), UiO-67, MOF-801, MOF-808 NU-1000. High reactant water...
MOF-808, a Zr(IV)-based metal-organic framework, has been proven to be very effective heterogeneous catalyst for the hydrolysis of peptide bond in wide range peptides and hen egg white lysozyme protein. The kinetic experiments with series Gly-X dipeptides varying nature amino acid side chain have shown that MOF-808 exhibits selectivity depending on size chemical X chain. Dipeptides smaller or hydrophilic residues were hydrolyzed faster than those bulky hydrophobic lack electron rich...
A combined approach: permanent highly porous bismuth-containing metal–organic framework (CAU-7) has been synthesized and its structure determined by a combination of electron diffraction, Rietveld refinement, DFT calculations. The compound is catalytically active in the hydroxymethylation furan (see picture). Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted...
Acidic modulating ligands have been shown to stabilize UiO metal-organic frameworks against structural collapse under ball-milling.
Over the past decade, zirconium-terephthalate UiO-66 has evolved into one of most intensely studied metal–organic frameworks (MOFs) to date. Among fascinating and pervasive features this material are defects, their influence on a multitude its properties. However, simultaneous occurrence two defect types, missing linkers nodes, limits extent which certain properties can be accurately matched framework's structure. In contribution, we present strategy unequivocally create linker defects in...
While titanium-based metal-organic frameworks (MOFs) have been widely studied for their (photo)catalytic potential, only a few TiIV MOFs reported owing to the high reactivity of employed titanium precursors. The synthesis COK-47 is now presented, first Ti carboxylate MOF based on sheets O6 octahedra, which can be synthesized with range different linkers. as an inherently defective nanoparticulate material, rendering it highly efficient catalyst oxidation thiophenes. Its structure was...
The mechanism and products of the structural collapse metal–organic frameworks (MOFs) UiO-66, MIL-140B MIL-140C upon ball-milling are investigated through solid state 13C NMR pair distribution function (PDF) studies, finding amorphization to proceed by breaking a fraction metal–ligand bonding in each case. amorphous contain inorganic–organic motifs reminiscent crystalline phases. Whilst inorganic Zr6O4(OH)4 clusters UiO-66 remain intact collapse, ZrO backbone MIL-140 undergoes substantial...
The synthesis of titanium-carboxylate metal-organic frameworks (MOFs) is hampered by the high reactivity commonly employed alkoxide precursors. Herein, we present an innovative approach to titanium-based MOFs use titanocene dichloride synthesize COK-69, first breathing Ti MOF, which built up from trans-1,4-cyclohexanedicarboxylate linkers and unprecedented [Ti(IV)3(μ3-O)(O)2(COO)6] cluster. photoactive properties COK-69 were investigated in depth proton-coupled electron-transfer experiments,...
Kelvin probe monitoring of metal-organic framework coated electrodes is demonstrated as a route for ppb-level detection alkyl phosphonates.
The introduction of Ce4+ as a structural cation has been shown to be promising route redox active metal-organic frameworks (MOFs). However, the mechanism by which these MOFs act catalysts remains unclear. Herein, we present detailed study site in [Ce6 O4 (OH)4 ]-based such Ce-UiO-66, involved aerobic oxidation benzyl alcohol, chosen model reaction. X-ray absorption spectroscopy (XAS) data confirm reduction up one ion per Ce6 cluster with corresponding outwards radial shift due larger radius...
The synthesis of Zr-MOFs under green, industrially feasible conditions was investigated. Two new compounds with bcu-topology and the fluorinated analogue UiO-66 exhibiting fcu-topology were obtained characterised. All products exhibit permanent porosity. In bcu-frameworks interaction sulfate anions apparently induces an unusual eightfold connectivity Zr cluster.
Abstract Die gezielte Manipulation Metall‐organischer Gerüste (MOFs) ist ein interessantes Konzept zur Entwicklung maßgeschneiderter Materialeigenschaften, das nicht nur in den Gebieten der Sorption und Katalyse neue Möglichkeiten schafft, sondern auch bei Kontrolle anspruchsvollerer physikalischer Merkmale wie Bandlücke sowie magnetischer elektrischer Eigenschaften. Bisher gab es wenig Bemühungen, die intrinsischen oder absichtlich geschaffenen Defekte verschiedenster Art zu...
Heterogeneous palladium single-site MOF catalysts for the oxidative coupling of arenes <italic>via</italic> C–H/C–H: superior TONs due to active site isolation.
A highly porous and stable Zr-MOF containing a planar porphyrin-based tetraphosphonic acid was synthesized characterized regarding its sorption properties chemical stability.
Abstract The synthesis of the commercially available aluminum fumarate sample A520 has been optimized and its structure analyzed through a combination powder diffraction, solid‐state NMR spectroscopy, molecular simulation, IR thermal analysis. is an analogue MIL‐53(Al)‐BDC solid, but with more rigid behavior. differences between commercial samples in terms defects have investigated by situ spectroscopy correlated to their catalytic activity for ethanol dehydration.
We report the first zirconium metal-organic framework based on squaric acid, representing member with smallest unit cell in isoreticular UiO-66 family. Its molecular sieving properties are strongly influenced by monocarboxylic acid modulator incorporated during synthesis.
A new precursor method using glycinate/nitrate capped Ce<sub>6</sub> clusters enables the synthesis of Ce(<sc>iv</sc>) MOFs with reactive linkers.