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Synthesis of highly stable metal-containing extra-large-pore molecular sieves

AuthorsMartínez-Franco, Raquel; Paris Carrizo, Cecilia Gertrudis; Moliner Marín, Manuel; Corma, Avelino
Issue Date2016
PublisherRoyal Society (Great Britain)
CitationPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374(2061): 20150075 (2016)
AbstractThe isomorphic substitution of two different metals (Mg and Co) within the framework of the ITQ-51 zeotype (IFO structure) using bulky aromatic proton sponges as organic structure-directing agents (OSDAs) has allowed the synthesis of different stable metal-containing extra-large-pore zeotypes with high pore accessibility and acidity. These metalcontaining extra-large-pore zeolites, named MgITQ-51 and CoITQ-51, have been characterized by different techniques, such as powder X-ray diffraction, scanning electron microscopy, energy dispersive Xray spectrometry, UV-Vis spectroscopy, temperature programmed desorption of ammonia and Fourier transform infrared spectroscopy, to study their physico-chemical properties. The characterization confirms the preferential insertion of Mg and Co atoms within the crystalline structure of the ITQ-51 zeotype, providing high Brønsted acidity, and allowing their use as efficient heterogeneous acid catalysts in industrially relevant reactions involving bulky organic molecules.
Publisher version (URL)https://doi.org/10.1098/rsta.2015.0075
Identifiersdoi: 10.1098/rsta.2015.0075
issn: 1364-503X
e-issn: 1471-2962
Appears in Collections:(ITQ) Artículos
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