INVESTIGADORES
VAZQUEZ Patricia Graciela
artículos
Título:
Doped Keggin heteropolyacids as catalysts in sulfide oxidation
Autor/es:
PALERMO VALERIA; SATHIQC ANGEL; VAZQUEZ PATRICIA; THOMAS HORACIO; ROMANELLI GUSTAVO
Revista:
Reaction Kinetics, Mechanisms and Catalysis
Editorial:
Springer
Referencias:
Año: 2011 vol. 104 p. 181 - 195
ISSN:
1878-5190
Resumen:
In this research, we report the preparation of doped PMo Kegginheteropolyacids where Mo is partially replaced by V, Bi, and Bi?V. These catalystswere 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.
