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Article

Pr5Mo3O16+δ – новый анодный материал для твердооксидных топливных элементов

Журнал неорганической химии. 2018. Т. 63. № 10. С. 1274-1279.
Истомин С. Я., Котова А., Лысков Н., Мазо Г. Н., Антипов Е.

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).