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Mg-MOF-74@SBA-15 hybrids: Synthesis, characterization, and adsorption properties
11.C. Coll, L. Mondragón, R. Martínez-Máñez, F. Sancenón, M. D. Marcos, J. Soto, P. Amorós, and E. Pérez-Payá, Angew. Chem., Int. Ed. 50, 2138 (2011).
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See supplementary material at http://dx.doi.org/10.1063/1.4902816
for infrared spectra of Mg-MOF-74, SBA-15 and the composites, TGA of Mg-MOF-74 and the composites, SEM images of SBA-15, elemental mapping, EDX spectra and micropore size distribution plots for the composites and CO2
adsorption isotherm of Mg-MOF-74 at 293 K.[Supplementary Material]
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Nanocrystals of Mg-MOF-74 have been immobilized into the mesopores of SBA-15 rods to fabricate Mg-MOF-74@SBA-15 hybrid materials. To furnish such composites, a relatively simple synthetic strategy has been adopted by direct dispersion of the metal-organic framework (MOF) precursors in SBA-15 matrix to prepare the hybrid materials
in situ. The hybrid materials have been characterized using powder X-ray diffraction and several spectroscopic and microscopic techniques, which suggest growth of the MOF nanocrystals inside the SBA-15 mesopores and the composites exhibit characteristics of both the components. N2
adsorption isotherms at 77 K reveal that the composites contain additional mesopores, compared to only micropores of pristine MOF nanocrystals. In addition to such combination of both micro and mesoporosity, the composites also demonstrate significant CO2
adsorption at room temperature.
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