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Pr5Mo3O16 + δ: A New Anode Material for Solid Oxide Fuel Cells

  • Synthesis and Properties of Inorganic Compounds
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Abstract

The thermomechanical and electrical conductivity properties of praseodymium molybdate Pr5Mo3O16 + δ prepared by a solid-phase method were studied. The electrical conductivity of praseodymium molybdate samples measured at temperatures in the range 373–1173 K with the oxygen partial pressure in the gas of 10–3 to 0.21 atm was found to increase from ~10–7 to ~10–2 S/cm and to be almost independent of oxygen pressure. It is for the first time that electrical conductivity a reductive atmosphere (Ar/H2 5%) was found to increase from 0.1 to 1.2 S/cm in the same temperature range. Studies of the chemical stability of Pr5Mo3O16 + δ with respect to solid electrolytes showed the absence of chemical reactions with GDC at 1273 K and with YSZ at 1223 K. The combination of these properties evidences for the potential of praseodymium molybdate for use as an anode material for solid oxide fuel cells (SOFCs).

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Authors and Affiliations

  1. Moscow State University, Moscow, 119991, Russia

    S. Ya. Istomin, A. I. Kotova, G. N. Mazo & E. V. Antipov

  2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    N. V. Lyskov

Authors
  1. S. Ya. Istomin
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  2. A. I. Kotova
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  3. N. V. Lyskov
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  4. G. N. Mazo
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  5. E. V. Antipov
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Corresponding author

Correspondence to G. N. Mazo.

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Original Russian Text © S.Ya. Istomin, A.I. Kotova, N.V. Lyskov, G.N. Mazo, E.V. Antipov, 2018, published in Zhurnal Neorganicheskoi Khimii, 2018, Vol. 63, No. 10, pp. 1274–1279.

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Istomin, S.Y., Kotova, A.I., Lyskov, N.V. et al. Pr5Mo3O16 + δ: A New Anode Material for Solid Oxide Fuel Cells. Russ. J. Inorg. Chem. 63, 1291–1296 (2018). https://doi.org/10.1134/S003602361810008X

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  • DOI: https://doi.org/10.1134/S003602361810008X

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