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- W2012547501 abstract "12-Tungstophosphoric heteropolyacid (HPW) has been encapsulated in a mesoporous metal–organic framework (MOF), MIL-100(Fe), by a simple low-temperature (<100 °C) HF-free incorporation route via the reaction of ferric nitrate and trimesic acid in the presence of HPW. The resulting hybrid [email protected](Fe) material was systemically characterized by XRD, N2 adsorption, FT-IR, acid–base titration, 31P MAS NMR, TEM, SEM, TGA, XPS techniques and elemental analysis, and then used as a heterogeneous catalyst in acid-catalyzed esterification and acetalization. The characterization results indicate that the HPW molecules were successfully incorporated within the mesoporous cages of the MIL-100(Fe) matrix as noncoordinating guests, thus maintaining the integrity of the protonic acidity of HPW. The resulting [email protected](Fe) catalyst exhibits high activity and excellent reusability in the esterification reactions with no evidence for agglomeration, leaching, or deactivation of the HPW during several repeated uses of the catalyst. Similarly, the [email protected](Fe) catalyst also shows excellent catalytic properties in the acetalization of benzaldehyde and ethanediol. The unique characteristics of MIL-100(Fe) and the uniform dispersion of HPW molecules within the mesoporous cages of the MIL-100(Fe) matrix may account for the high catalytic activity and recyclability of the [email protected](Fe) catalyst." @default.
- W2012547501 created "2016-06-24" @default.
- W2012547501 creator A5038612240 @default.
- W2012547501 creator A5055897111 @default.
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- W2012547501 creator A5067562666 @default.
- W2012547501 creator A5068140197 @default.
- W2012547501 creator A5068222384 @default.
- W2012547501 date "2015-06-01" @default.
- W2012547501 modified "2023-10-18" @default.
- W2012547501 title "Polyoxometalates confined in the mesoporous cages of metal–organic framework MIL-100(Fe): Efficient heterogeneous catalysts for esterification and acetalization reactions" @default.
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- W2012547501 doi "https://doi.org/10.1016/j.cej.2015.01.092" @default.
- W2012547501 hasPublicationYear "2015" @default.
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