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A Novel Approach to Prepare Well-Defined Silica-Supported Polyoxometalate Species by Reaction with a Chlorinated Support
- Source :
- Journal of Inorganic Chemistry. 2013:1-8
- Publication Year :
- 2013
- Publisher :
- Hindawi Limited, 2013.
-
Abstract
- Polyoxometalates were grafted covalently on SBA-15 by a two-step procedure. The dehydroxylated mesoporous silica was first modified by reaction with methyltrichlorosilane in presence of triethylamine. The resulting solid was fully characterized and contained a mixture of mono- and digrafted species . These surface Si–Cl bonds can react with lacunary polyoxometalates as in solution, yielding to a ≡Si–O–POM linkage. However, solid state MAS NMR shows that only the digrafted species react with the polyoxometalate. This new grafting method opens the way to the synthesis of a new class of catalysts which could operate in solution without leaching.
Details
- ISSN :
- 2314713X
- Volume :
- 2013
- Database :
- OpenAIRE
- Journal :
- Journal of Inorganic Chemistry
- Accession number :
- edsair.doi...........9fb699b7f6bff55e658dc4c27714837b