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Título: | A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite |
Autor: | Lei, C.; Dong, Z.; Martínez Sánchez, Cristina CSIC ORCID; Martínez Triguero, Joaquín CSIC ORCID; Chen, W.; Wu, Q.; Meng, X.; Parvulescu, A.N.; De Baerdemaeker, T.; Müller, Ulrich; Zheng, A.; Ma, Y.; Zhang, W.; Yokoi, T.; Marler, B.; De Vos, D.E.; Kolb, Ute; Corma, Avelino CSIC ORCID ; Xiao, F.S. | Fecha de publicación: | 1-sep-2020 | Editor: | John Wiley & Sons | Citación: | Angewandte Chemie - German Edition 132(36): 15779-15785 (2020) | Resumen: | There are a large number of zeolites, such as ITH, that cannot be prepared in the aluminosilicate form. Now, the successful synthesis of aluminosilicate ITH zeolite using a simple cationic oligomer as an organic template is presented. Key to the success is that the cationic oligomer has a strong complexation ability with aluminum species combined with a structural directing ability for the ITH structure similar to that of the conventional organic template. The aluminosilicate ITH zeolite has very high crystallinity, nanosheet-like crystal morphology, large surface area, fully four-coordinated Al species, and abundant acidic sites. Methanol-to-propylene (MTP) tests reveal that the Al-ITH zeolite shows much higher selectivity for propylene and longer lifetime than commercial ZSM-5. FCC tests show that Al-ITH zeolite is a good candidate as a shape-selective FCC additive for enhancing propylene and butylene selectivity. | Versión del editor: | http://dx.doi.org/10.1002/ange.202003282 | URI: | http://hdl.handle.net/10261/227144 | Identificadores: | issn: 1521-3757 |
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