Please use this identifier to cite or link to this item: doi:10.22028/D291-24479
Title: Polymetalates based organic-inorganic nanocomposites
Author(s): Judeinstein, Patrick
Schmidt, Helmut K.
Language: English
Year of Publication: 1994
OPUS Source: Journal of sol gel science and technology. - 3. 1994, 3, S. 189-197
SWD key words: Nanokomposit
Elektrochemische Eigenschaft
Organisch-anorganischer Hybridwerkstoff
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: New nanocomposites materials have been synthesized. They present electrochemical and photochromic properties. They are based on a hybrid organic-inorganic network, in which tungsten heteropolyoxometalates (PW12O40(3-), SiW12O40(4-), W10O32(4-), polymeric tungstate) are entrapped. High tungsten ratios could be reached and films or bulk materials have been obtained. The structure of these materials is described on the basis of multi-spectroscopic investigations (IR, EPR, NMR). Electrochemical redox reactions have been observed in thin films. Dark blue reversible coloration of the materials is obtained under UV irradiation. The photochromic mechanism has been investigated and shows the reversible formation of carbonyl group.
Link to this record: urn:nbn:de:bsz:291-scidok-27872
Date of registration: 19-Mar-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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