Search results for " Metal-Organic Frameworks"

showing 4 items of 4 documents

Automated Diffraction Tomography for the Structure Elucidation of Twinned, Sub-micrometer Crystals of a Highly Porous, Catalytically Active Bismuth M…

2012

010405 organic chemistryChemistrystructure elucidationInorganic chemistrychemistry.chemical_elementGeneral Medicine02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyHeterogeneous catalysis01 natural sciencesCatalysis0104 chemical sciencesBismuthbismuth; heterogeneous catalysis; metal-organic frameworks; structure elucidationSub micrometerDiffraction tomographyheterogeneous catalysisChemical engineeringbismuthHighly porousMetal-organic framework0210 nano-technologymetal-organic frameworksAngewandte Chemie International Edition
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A Comprehensive Thermogravimetric Analysis Multifaceted Method for the Exact Determination of the Composition of Multifunctional Metal‐Organic Framew…

2020

Thermogravimetric analysis (TGA) has been widely used as a tool to characterise the composition of materials such as Metal-Organic Frameworks (MOFs). However, given their multifunctionality and structural complexity, examples of detailed methodologies for the exact calculation of the composition of complex MOF structures and MOF composites are lacking in the literature. Herein, we introduce a new straightforward methodology – based on the experimental ratio between the mass of a structure and its residue – for the exact calculation of the composition of almost any MOF material. We provide a detailed guide for the application of our methodology to different MOF materials, including MOFs in w…

Compositional Analysis Materials Metal-Organic Frameworks Thermal AnalysisThermogravimetric analysisChemistryUNESCO::QUÍMICA02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology:QUÍMICA [UNESCO]01 natural sciencesmaterials0104 chemical sciencescompositional analysisInorganic ChemistryChemical engineeringComposition (visual arts)Metal-organic framework0210 nano-technologyThermal analysismetal-organic frameworksthermal analysisEuropean Journal of Inorganic Chemistry
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Hybrid Inorganic‐Organic White Light Emitting Diodes

2020

This chapter reviews the state of the art of materials, technologies, characterizations, process and challenges concerning hybrid white light‐emitting diodes (LEDs). Here, for a “hybrid LED” we mean a device based on a layer of organic phosphors (or a mix of inorganic and organic ones) pumped by a high‐energy inorganic LED. Light is emitted by a frequency down‐conversion (sometimes simply named color‐conversion) process. Benefits and weak spots of this technology are investigated with a special attention for the materials involved into the process of frequency down‐conversion, in order to envisage the future impact of the hybrid lighting technology among the well‐established inorganic ones.

Materials sciencebusiness.industryWhite lightOptoelectronicsMetal-organic frameworkInorganic organicbusinessHybrid Inorganic-Organic White Light Emitting Diodes (HWLEDs) Frequency-down conversion Luminescent polymers and molecular dyes Biomaterials and biomolecules Metal-Organic Frameworks Carbon dots Color tuning and rendering of HWLEDs Stability of HWLEDsSettore ING-INF/01 - ElettronicaDiode
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Elucidating Gating Effects for Hydrogen Sorption in MFU-4-Type Triazolate-Based Metal-Organic Frameworks Featuring Different Pore Sizes

2011

A highly porous member of isoreticular MFU-4-type frameworks, [Zn(5)Cl(4)(BTDD)(3)] (MFU-4l(arge)) (H(2)-BTDD=bis(1H-1,2,3-triazolo[4,5-b],[4',5'-i])dibenzo[1,4]dioxin), has been synthesized using ZnCl(2) and H(2)-BTDD in N,N-dimethylformamide as a solvent. MFU-4l represents the first example of MFU-4-type frameworks featuring large pore apertures of 9.1 Å. Here, MFU-4l serves as a reference compound to evaluate the origin of unique and specific gas-sorption properties of MFU-4, reported previously. The latter framework features narrow-sized pores of 2.5 Å that allow passage of sufficiently small molecules only (such as hydrogen or water), whereas molecules with larger kinetic diameters (e.…

Thermogravimetric analysisHydrogenChemistryThermal desorption spectroscopythermal desorption spectroscopyOrganic ChemistryInorganic chemistrytriazolateschemistry.chemical_elementGeneral ChemistryCrystal structureCatalysisadsorption; hydrogen; metal-organic frameworks; thermal desorption spectroscopy; triazolatesAdsorptionadsorptionhydrogenDesorptionPhysical chemistryddc:530Metal-organic frameworkmetal-organic frameworksPowder diffractionChemistry - A European Journal
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