A Novel Approach to Prepare Well-Defined Silica-Supported Polyoxometalate Species by Reaction with a Chlorinated Support | Zendy

Éva Grinenval | Zendy; JeanMarie Basset | Zendy; F. Lefèbvre | Zendy

Open Access

A Novel Approach to Prepare Well-Defined Silica-Supported Polyoxometalate Species by Reaction with a Chlorinated Support

Author(s) -

Éva Grinenval,

JeanMarie Basset,

F. Lefèbvre

Publication year - 2013

Publication title -

journal of inorganic chemistry

Language(s) - English

Resource type - Journals

eISSN - 2356-7457

pISSN - 2314-713X

DOI - 10.1155/2013/902192

Subject(s) - polyoxometalate , triethylamine , lacunary function , covalent bond , mesoporous silica , mesoporous material , chemistry , catalysis , materials science , chemical engineering , inorganic chemistry , polymer chemistry , organic chemistry , mathematics , pure mathematics , engineering

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

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