New Polyoxotungstates with Ln(III) and Co(II) and Their Immobilization in Silica Particles

Abstract:

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New lanthanotungstocobaltates with the Keggin structure and general formula KxHy[Ln(CoW11O39)(H2O)3]⋅nH2O or KxHyLn[Ln(CoW11O39)(H2O)3]⋅nH2O, LnIII = Ce, La, Eu, Sm, Tb, were prepared and characterized for the first time. Hybrid silica materials, with the polyoxoanions anchored to spherical silica particles, were also prepared and characterised. Their study by IR spectroscopy and EDS suggested that the structure of the Keggin-type polyanions is maintained when they are immobilized in the silica material.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

1206-1210

DOI:

10.4028/www.scientific.net/MSF.514-516.1206

Citation:

M.S. S. Balula, H. I.S. Nogueira, A. M.V. Cavaleiro, "New Polyoxotungstates with Ln(III) and Co(II) and Their Immobilization in Silica Particles", Materials Science Forum, Vols. 514-516, pp. 1206-1210, 2006

Online since:

May 2006

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$35.00

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