CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
ÁCIDO TUNGSTOFOSFÓRICO INMOVILIZADO EN SÍLICE MESOPOROSA ORDENADA PARA SU APLICACIÓN EN CATÁLISIS HETEROGÉNEA
Autor/es:
LUIS R PIZZIO; DOLORES MORALES; GUSTAVO P. ROMANELLI
Revista:
Anales de la Asociación Química Argentina
Editorial:
Asociación Química Argentina
Referencias:
Lugar: Ciudad Auónoma de Buenos Aires; Año: 2019 vol. 106 p. 40 - 46
ISSN:
2545-8655
Resumen:
Mesoporous silica with an ordered structure was synthesized, using Pluronic P123 as a template, tetraethylorthosilicate (TEOS) as alkoxide precursor and a variable volume of 0.5% p/p aqueous agar solution. The materials were characterized by BET, FT-IR, potentiometric titration with n-butylamine, XRD and SAXS. They showed excellent textural properties for their use as heteropolyacid support. The characterization of the materials obtained from the immobilization of tungstophosphoric acid (H3PW12O40) showed that the Keggin structure is present in the synthesized material and that they have a high acidity. Thus, the prepared catalysts are potentially suitable for their application in one-pot organic synthesis reactions.