Dielectric study of v2O5-1.6 H2O xerogel in the broad frequency range (10^5-10^10 hz)
- 1 January 1985
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 46 (12) , 2107-2115
- https://doi.org/10.1051/jphys:0198500460120210700
Abstract
The first experimental results concerning the dielectric properties of V2O5-1.6 H2O xerogel in a broad frequency range (105-1010 Hz) are presented between the temperatures 198 K and 296 K. The dielectric spectra exhibit four behaviour types : a) a low frequency effect due to the diffusion of charge carriers H+ protons ; b) two dielectric relaxations due to the two kinds of water : water strongly-bonded and water weakly-bonded to the V2O5 ribbon; c) a dielectric relaxation which would be due to a fast rotation of the H3O+ ions. One explanation of these mechanisms with respect to the experimental results is proposedKeywords
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