Dendrimer Template Directed Self-Assembly during Zeolite Formation (Articolo in rivista)

Type
Label
  • Dendrimer Template Directed Self-Assembly during Zeolite Formation (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bonaccorsi L. (1); Lombardo D. (2); Longo A. (3); Proverbio E. (1); Triolo A (2). (2009)
    Dendrimer Template Directed Self-Assembly during Zeolite Formation
    in Macromolecules (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bonaccorsi L. (1); Lombardo D. (2); Longo A. (3); Proverbio E. (1); Triolo A (2). (literal)
Pagina inizio
  • 1239 (literal)
Pagina fine
  • 1243 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 42 (literal)
Rivista
Note
  • Google Scholar (literal)
  • ISI Web of Science (WOS) (literal)
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Chimica Industriale e Ingegneria dei Materiali, UniVersita` di Messina, Salita Sperone, 31-98166 S. Agata (Messina), Italy; (2) CNR-IPCF, Istituto per i Processi Chimico Fisici - sez. Messina, C. da Papardo Salita Sperone s.n., I-98158 Messina, Italy (3) CNR-ISMN, Istituto per lo studio dei Materiali Nanostrutturati, Sez. Palermo, Via Ugo La Malfa 153, I-90146 Palermo, Italy (literal)
Titolo
  • Dendrimer Template Directed Self-Assembly during Zeolite Formation (literal)
Abstract
  • We describe the formation of a spherical complex driven by the incorporation of aluminosilicate in a dendrimer charged surface. By using a carboxyl-terminated dendrimer species as a macromolecular template for zeolite formation, we detected the formation of porous, stable, and nearly monodisperse spherical aggregates with an average radius of R ) 3500 Å. The presence of the charge in the surface of the dendrimer, acting as the main driving force, influences the crystallites aggregation as well as the long-range assembly conditions for the zeolite growth. The main finding of our results suggests a possible mechanism for nanoaggregates formation. The dendrimer carboxylate end groups, which are responsible of the long-range electrostatic interparticle interaction, create a diffuse layer of condensed Na+ ions in the neighborhood of the dendrimer surface which act as the effective structure-directing agent for the zeolite LTA formation. This study put novel insight into the investigation of alternative protocols for the assembly mechanism of porous materials. (literal)
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