Dandelion-like microspherical MCM-22 zeolite using BP 2000 as a hard template

Pergher, Sibele Berenice Castellã; Schwanke, Anderson; Rocha, Jhonny Villarroel; Sapag, Karim; Díaz, Urbano; Corma, Avelino

Dandelion-like microspherical MCM-22 zeolite using BP 2000 as a hard template

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dc.contributor.author	Pergher, Sibele Berenice Castellã
dc.contributor.author	Schwanke, Anderson
dc.contributor.author	Rocha, Jhonny Villarroel
dc.contributor.author	Sapag, Karim
dc.contributor.author	Díaz, Urbano
dc.contributor.author	Corma, Avelino
dc.date.accessioned	2020-07-13T18:18:22Z
dc.date.available	2020-07-13T18:18:22Z
dc.date.issued	2018-06-11
dc.description.resumo	The chemistry between layered MWW zeolite and carbon black pearls (BP 2000) as an inexpensive hard template was investigated to develop a rational one-pot synthesis of MCM-22 microspheres. The characterization results showed that the insertion of BP 2000 in the gel synthesis did not substantially compromise the crystallinity and microporosity, and the microscopic analyses showed that BP 2000 played a key role in controlling the final morphology of the MCM-22 zeolite, creating beautiful dandelion-like microspherical particles. The morphology obtained is due to the tortuous shape of the hard template, the particular MWW particle crystals, the interaction with the external surface of the MWW zeolitic precursor, and the synthesis conditions. The stacking of MWW crystals with edge-to-face orientations generates meso-/macrovoids, allowing access to the interiors of the microspheres. The microspheres were homogeneous with sizes ranging from 6 to 8 μm with an increase of the external surface and a macroporous size distribution centered at 200 nm, which is two times that of the traditional MCM-22 zeolite	pt_BR
dc.identifier.citation	SCHWANKE, Anderson; ROCHA, Jhonny V.; SAPAG, Karim; DÍAZ, Urbano; CORMA, Avelino; PERGHER, Sibele Berenice Castellã. Dandelion-Like Microspherical MCM-22 Zeolite Using BP 2000 as a Hard Template. Acs Omega, [s.l.], v. 3, n. 6, p. 6217-6223, 11 jun. 2018. ISSN 2470-1343. Disponível em: https://pubs.acs.org/doi/10.1021/acsomega.8b00647. Acesso em: 13 jul. 2020. http://dx.doi.org/10.1021/acsomega.8b00647	pt_BR
dc.identifier.doi	10.1021/acsomega.8b00647
dc.identifier.issn	2470-1343
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29584
dc.language	en	pt_BR
dc.publisher	Sociedade Americana de Química	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Dandelion-Like	pt_BR
dc.subject	MCM-22 zeolite	pt_BR
dc.subject	BP 2000	pt_BR
dc.subject	Hard Template	pt_BR
dc.title	Dandelion-like microspherical MCM-22 zeolite using BP 2000 as a hard template	pt_BR
dc.type	article	pt_BR