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Vol. 26 No. 18 (2014): Vol 26 Issue 18

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Conductivity of Na5[MnCr(OH2)W11O39]·14H2O Treated by Chemically-Heated Diffusion of Er Permeation

https://doi.org/10.14233/ajchem.2014.17147
Li-Qiang Chen
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Xiu-Mei Lin
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Li-Hong Liu
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Li-Mei Dai
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Ming-Xia Zhu
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Wen-Shi Che
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China
Jing Tang
Department of Chemistry, Heihe University, Heihe 164300, Heilongjiang Province, P.R. China

Corresponding Author(s) : Li-Mei Dai

dlm1155@163.com

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18

Abstract

The gaseous permeation of erbium into the heteropoly compound Na5[MnCr(OH2)W11O39]·14H2O at 540 °C was performed. The studies of IR and XRD indicate that the keggin structure of the heteropoly compound is destroyed and the main product tungsten bronze Na0.54WO3 is obtained after permeation. ICP and XPS were used to determine the percentage composition of the erbium in the permeated sample. Conductivity of compounds before and after permeation were investigated by four-electrode method at room temperature and different measuring temperatures, the results reveal that the conductivity of the permeated compound is 105 times higher than that of the original compound at room temperature.

Keywords

Heteropoly compounds Tungsten bronzes Rare earth permeation Conductivity
Chen, L.-Q., Lin, X.-M., Liu, L.-H., Dai, L.-M., Zhu, M.-X., Che, W.-S., & Tang, J. (2014). Conductivity of Na5[MnCr(OH2)W11O39]·14H2O Treated by Chemically-Heated Diffusion of Er Permeation. Asian Journal of Chemistry, 26(18), 6207–6211. https://doi.org/10.14233/ajchem.2014.17147
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