Highly Basic and Dipolar Layered Double Hydroxides Enhance Catalysis of Cyanoethylation of Alcohols
Por:
Díaz M., Cruz A.S., Flores J., Guzmán A., Lima E.
Publicada:
1 ago 2018
Ahead of Print:
1 ene 2018
Resumen:
Abstract: Layered double hydroxides (LDH), magnesium–aluminum–carbonates and magnesium–gallium–aluminum–carbonates, were synthesized by sol–gel incorporating during synthesis a part of aluminum as (AlF6)3- blocks in order to incorporate F- as a part of brucite-like layers and not as compensating anions. Structural, textural and surface properties of resulting fluorinated were characterized. Particularly, presence the fluorine as a part of brucite-like layers influenced directly polarity and hydrogen bonding acceptor character at surface of materials. These modifications at surface of LDH greatly changed their catalytic properties. Cyanoethylation reaction between acrylonitrile and methanol was catalyzed by both fluorine-free and fluorinated LDH, pointing out a clear influence of fluorine on the conversion and rate reaction. Graphical Abstract: [Figure not available: see fulltext.]. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
Filiaciones:
Díaz M.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Cd. Universitaria, Del. Coyoacán, CP 04510, Mexico City, Mexico
Cruz A.S.:
Universidad Autónoma Metropolitana, Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, Mexico City, Mexico
Flores J.:
Universidad Autónoma Metropolitana, Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, Mexico City, Mexico
Guzmán A.:
Instituto Politécnico Nacional - ESIQIE, Avenida IPN UPALM Edificio 7, Zacatenco, Mexico City, DF, Mexico
Lima E.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Cd. Universitaria, Del. Coyoacán, CP 04510, Mexico City, Mexico
Universidad Autónoma Metropolitana, Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, Mexico City, Mexico
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