CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Doped Keggin heteropolyacids as catalysts in sulfide oxidation
Autor/es:
VALERIA PALERMO; ÁNGEL G. SATHICQ; PATRICIA G. VÁZQUEZ; HORACIO J. THOMAS; GUSTAVO P. ROMANELLI
Revista:
REACTION KINETICS AND CATALYSIS LETTERS
Editorial:
SPRINGER
Referencias:
Año: 2011 vol. 104 p. 181 - 181
ISSN:
0133-1736
Resumen:
In this research, we report the preparation of doped PMo Keggin heteropolyacids where Mo is partially replaced by V, Bi, and Bi?V. These catalysts were characterized by means of ICP-AES analysis, 31P-NMR, UV?visible spectra, FT-IR spectra, thermal analysis, and textural properties. In addition, the activities of the synthesized catalysts were evaluated in the selective oxidation of sulfides to sulfoxides/sulfones. The incorporation of V, Bi and Bi?V into the structure of H3PMo12O40 increases the catalytic activity. The two most active catalysts, those with V and V?Bi were supported on aminopropyl-functionalized silica (SiO2NH2) and they were found to be and efficient heterogeneous catalysts for the selective oxidation of diphenylsulfide to the corresponding sulfoxide/sulfone.
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