Skip to main content
SpringerLink
Log in

Proton conductivity of M x H3–x PX12O40 and M x H4–x SiX12O40 (M = Rb, Cs; X = W, Mo) acid salts of heteropolyacids

  • Published:
Inorganic Materials Aims and scope

Abstract

We have studied the electrical conductivity of rubidium and cesium acid salts of tungstophosphoric, tungstosilicic, molybdophosphoric, and molybdosilicic heteropolyacids. The materials have the form of hollow spheres up to 2 μm in size, and their surface layer is formed by nanoparticles. The ionic conductivity of the salts has been measured at different relative humidities (from 30 to 95%) in a wide temperature range (from–40 to 90°C). The highest conductivity is offered by the Rb x H4–x SiW12O40 samples (σ = 5.3 × 10–4 S/cm at 30°C and 30% RH). Near 0°C, the materials undergo a phase transition which involves water crystallization and a change in activation energy, but their high proton conductivity persists even at negative temperatures.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Hill, C.L., Introduction: polyoxometalates—multicomponent molecular vehicles to probe fundamental issues and practical problems, Chem. Rev., 1998, vol. 98, pp. 1–2.

    Article  CAS  Google Scholar 

  2. Kourasi, M., Wills, R.G.A., Shah, A.A., and Walsh, F.C., Heteropolyacids for fuel cell applications, Electrochim. Acta, 2014, vol. 127, pp. 454–466.

    Article  CAS  Google Scholar 

  3. Kozhevnikov, I.V., Catalysis by heteropoly acids and multicomponent polyoxometalates in liquid-phase reactions, Chem. Rev., 1998, vol. 98, pp. 171–198.

    Article  CAS  Google Scholar 

  4. Sodakane, M. and Steckhan, E., Electrochemical properties of polyoxometalates as electrocatalysts, Chem. Rev., 1998, vol. 98, pp. 219–237.

    Article  Google Scholar 

  5. Nakamura, O., Kodama, T., Ogino, I., and Miyake, Y., High-conductivity solid proton conductors: dodecamolybdophosphoric acid and dodecatungstophosphoric acid crystals, Chem. Lett., 1979, vol. 8, no. 1, pp. 17–18.

    Article  Google Scholar 

  6. Gao, H. and Lian, K., Characterizations of proton conducting polymer electrolytes for electrochemical capacitors, Electrochim. Acta, 2010, vol. 56, pp. 122–127.

    Article  CAS  Google Scholar 

  7. Korosteeva, A.I., Leonova, L.S., and Ukshe, E.A., Effect of the degree of hydration on the proton conductivity of heteropolyacids, Elektrokhimiya, 1987, vol. 23, no. 10, pp. 1349–1353.

    Google Scholar 

  8. Hardwick, A., Dikens, P.G., and Slade, R.C.T., Investigation of H+ motion in the 21-hydrates of 12-tungstophosphoric and 12-molybdophosphoric acids by conductivity and pulsed 1H NMR measurements, Solid State Ionics, 1984, vol. 13, pp. 345–350.

    Article  CAS  Google Scholar 

  9. Yaroslavtsev, A.B., Yaroslavtseva, E.M., and Chuvaev, V.F., Structure, composition, and electrical conductivity of potassium, rubidium, and cesium 12-tungstophosphates, Zh. Neorg. Khim., 1994, vol. 39, no. 6, pp. 948–950.

    CAS  Google Scholar 

  10. Yaroslavtsev, A.B., Yaroslavtseva, E.M., and Chuvaev, V.F., Structure of and electrical transport mechanism in hydrous thallium tungstophosphate, Zh. Neorg. Khim., 1990, vol. 35, no. 11, pp. 2769–2772.

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    E. Yu. Safronova, A. K. Osipov, A. E. Baranchikov & A. B. Yaroslavtsev

Authors
  1. E. Yu. Safronova
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. K. Osipov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. E. Baranchikov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. B. Yaroslavtsev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to E. Yu. Safronova.

Additional information

Original Russian Text © E.Yu. Safronova, A.K. Osipov, A.E. Baranchikov, A.B. Yaroslavtsev, 2015, published in Neorganicheskie Materialy, 2015, Vol. 51, No. 11, pp. 1249–1254.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Safronova, E.Y., Osipov, A.K., Baranchikov, A.E. et al. Proton conductivity of M x H3–x PX12O40 and M x H4–x SiX12O40 (M = Rb, Cs; X = W, Mo) acid salts of heteropolyacids. Inorg Mater 51, 1157–1162 (2015). https://doi.org/10.1134/S0020168515110102

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0020168515110102

Keywords

Search

Navigation