Skip to main content
Log in

Effect of composition of {(100%–x)CaWO4xV2O5} and {(100%–x)LaVO4xV2O5} composites on their conductivity

  • Published:
Russian Journal of Electrochemistry Aims and scope Submit manuscript

Abstract

Solid–phase synthesis is used to obtain the composites of {(100%–x)CaWO4xV2O5}, {(100%–x)LaVO4xV2O5}. Ceramic samples are characterized using the XRD technique; the systems contain two phases and are eutectic. Temperature dependences of overall conductivity σ of composites are obtained. The concentration dependence of conductivity of the {(100%–x)CaWO4xV2O5} composites is of interest as the conductivity jump reaches 5 orders of magnitude as compared to pure CaWO4. σ is close to purely ionic in the range of 0 < x < 1 mol %, which was determined using the EMF technique and on the basis of the character of the σ(\({P_{{O_2}}}\)) dependence. For the system of {(100%–x)LaVO4xV2O5} at 1–5 mol % of V2O5, an increase in conductivity by two orders of magnitude is observed and the ion conductivity component prevails for the composite with the additive of 1 mol % of V2O5.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Smith, D.R., Schultz, S., Markos, P., and Soukoulis, C.M., Phys. Rev., 2002, vol. 65, p. 195.

    Google Scholar 

  2. Neiman, A.Ya., Pestereva, N.N., Sharafutdinov, A.R., and Kostikov, Yu.P., Russ. J. Electrochem., 2005, vol. 41, p. 598.

    Article  CAS  Google Scholar 

  3. Neiman, A.Ya., Karapetyan, A.V., and Pestereva, N.N., Russ. J. Electrochem., 2014, vol. 50, p. 58.

    Article  CAS  Google Scholar 

  4. Brusset, H., Madanle-Aubry F., Blanck, B., Glazion, J.P., and Lande, J.P., Can. J. Chem., 1971, vol. 49, p. 3700.

    Article  CAS  Google Scholar 

  5. Bondar’, I.A., Vinogradova, N.V., and Dem’yanets, L.N., Soedineniya redozemel’nykh elementov. Silikaty, germanaty, fosfaty, arsenaty, vanadaty (Compounds of Rare–Earth Elements. Silicates, Germanates, Phosphates, Arsenates, Vanadates), Moscow: Nauka, 1983.

    Google Scholar 

  6. He, Y., Wang, Y., Zhao, L., Wu, X., and Wu, Y., J. Mol. Catal. A: Chem., 2011, vol. 337, p. 61.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to N. N. Pestereva.

Additional information

Original Russian Text © G.S. Partin, N.N. Pestereva, D.V. Korona, A.Ya. Neiman, 2015, published in Elektrokhimiya, 2015, Vol. 51, No. 10, pp. 1071–1076.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Partin, G.S., Pestereva, N.N., Korona, D.V. et al. Effect of composition of {(100%–x)CaWO4xV2O5} and {(100%–x)LaVO4xV2O5} composites on their conductivity. Russ J Electrochem 51, 945–950 (2015). https://doi.org/10.1134/S1023193515100109

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1023193515100109

Keywords

Navigation