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Hydration and proton transport in solid solutions based on Ba2CaWO6

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Abstract

Hydrated alkaline-earth metal tungstates Ba4Ca2 + x W2 − x O12 − 2x with perovskite structure were studied by the thermogravimetry, 1H NMR, IR, and Raman spectroscopy methods. Electrical conductivity and transfer numbers were measured with varying T, \( p_{O_2 } \) and \( p_{H_2 O} \). The solid solutions are capable of reversibly intercalating water and can exhibit high-temperature proton transport. The localization of protons on oxygen results in the appearance of energetically nonequivalent OH groups; a small fraction of protons are present in the form of H2O and H3O+.

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Authors and Affiliations

  1. Ural State University, pr. Lenina 51, Yekaterinburg, 620083, Russia

    I. E. Animitsa & N. A. Kochetova

  2. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620219, Russia

    T. A. Denisova, N. A. Zhuravlev & I. V. Baklanova

Authors
  1. I. E. Animitsa
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  2. N. A. Kochetova
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  3. T. A. Denisova
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  4. N. A. Zhuravlev
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  5. I. V. Baklanova
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Correspondence to I. E. Animitsa.

Additional information

Original Russian Text © I.E. Animitsa, N.A. Kochetova, T.A. Denisova, N.A. Zhuravlev, I.V. Baklanova, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 2, pp. 262–268.

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Animitsa, I.E., Kochetova, N.A., Denisova, T.A. et al. Hydration and proton transport in solid solutions based on Ba2CaWO6 . Russ. J. Phys. Chem. 83, 197–202 (2009). https://doi.org/10.1134/S0036024409020095

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  • DOI: https://doi.org/10.1134/S0036024409020095

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