Cargando…

Core–shell zeolite@aqueous miscible organic-layered double hydroxides

We report a general method for the synthesis of core–shell hybrid materials containing a microporous zeolite core with an aqueous miscible organic-layered double hydroxide (AMO-LDH) shell using a simple in situ coprecipitation method. For example, zeolite-HY@AMO-Mg(2)Al-CO(3)-LDH contains a 150 nm h...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Chunping, Byles, Coral F. H., Buffet, Jean-Charles, Rees, Nicholas H., Wu, Yue, O'Hare, Dermot
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5975924/
https://www.ncbi.nlm.nih.gov/pubmed/29910903
http://dx.doi.org/10.1039/c5sc03208c
Descripción
Sumario:We report a general method for the synthesis of core–shell hybrid materials containing a microporous zeolite core with an aqueous miscible organic-layered double hydroxide (AMO-LDH) shell using a simple in situ coprecipitation method. For example, zeolite-HY@AMO-Mg(2)Al-CO(3)-LDH contains a 150 nm hierarchical AMO-Mg(2)Al-CO(3)-LDH surface coating on zeolite-HY. It exhibits a similar BET surface area (698 m(2) g(–1)) as the parent zeolite-HY but this surface area has been re-allocated between microspores and mesopores. We believe that surface aluminium sites act as nucleation sites for the formation of the LDH coating and so robustly links it into the zeolite lattice. We expect that this new hybrid structure with micropores dominating in the core and mesopores populating the shell will provide a desirable new hybrid structure type for adsorption or catalysis.