Chemistry of Materials · 2011 · 533 citations · 44 references
Natural SciencesChemistryMaterials ScienceCatalysisMaterials ChemistrySolid-state ChemistryCatalyst CharacterizationCatalyst PreparationCatalyst SynthesisCatalytic MaterialsCatalytic Reaction EngineeringSupported CatalystsBiogasChemical Stability AssessmentChemical Stability TestingHigh-temperature StabilityKnoevenagel CondensationMetal-organic Framework CatalystsMetal-organic Framework SynthesisSelectivity
A new MIL-101 material based on aluminum and containing amine functional groups has been synthesized. The pure phase NH 2 -MIL-101(Al) can only be formed in very specific synthesis conditions, where both the metal source and the solvent used play a key role. The resulting porous solid shows a high thermal and chemical stability, decomposing at temperatures above 650 K in air. The NH 2 -MIL-101(Al) framework offers an excellent trade off for separation of CO 2: the combination of high stability, acceptable capacity at low adsorbate partial pressures, high selectivity, and fast regenerability makes this new material a very attractive candidate for applications like natural gas or biogas upgrading. CO 2 capacities up to 62 wt % are obtained at room temperature and 3 MPa. In addition to an excellent separation performance, the NH 2 -MIL-101(Al) shows a high activity in the basic catalyzed Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate at 313 K even in an as apolar a solvent as toluene (turn over frequency, TOF = 1.8 h –1 ).
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Reaction Kinetics in Differential Thermal Analysis
H.E. Kissinger · Analytical Chemistry · 1957 · 13K citations