Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La2Mo2O9

A. Tarancón; T. Norby; G. Dezanneau; A. Morata; F. Peiró; J. R. Morante

doi:10.1149/1.1795054

Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La₂Mo₂O₉

A. Tarancón, T. Norby, G. Dezanneau, A. Morata, F. Peiró, J. R. Morante

Research output: Contribution to journal › Article › peer-review

Abstract

Transport number measurements and impedance spectroscopy in controlled temperature and atmosphere were used to investigate the electrical conduction properties of La₂Mo₂O₉. The compound is a pure oxygen ion conductor in the temperature range of 400-800°C with oxide ion transport numbers greater than 0.99. The effect of the oxygen partial pressure on the electrical conductivity of La₂Mo₂O₉ was investigated from 1 to 10^-22 atm, showing that the material is stable and mainly an ionic conductor down 10^-17 atm at 800°C. These results confirm the suitability of the recently discovered La₂Mo ₂Q₉-based compounds as electrolytes in solid oxide fuel cell applications.

Original language	English
Pages (from-to)	A373-A375
Journal	Electrochemical and Solid-State Letters
Volume	7
Issue number	10
DOIs	https://doi.org/10.1149/1.1795054
Publication status	Published - 23 Nov 2004
Externally published	Yes

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title = "Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La2Mo2O9",

abstract = "Transport number measurements and impedance spectroscopy in controlled temperature and atmosphere were used to investigate the electrical conduction properties of La2Mo2O9. The compound is a pure oxygen ion conductor in the temperature range of 400-800°C with oxide ion transport numbers greater than 0.99. The effect of the oxygen partial pressure on the electrical conductivity of La2Mo2O9 was investigated from 1 to 10-22 atm, showing that the material is stable and mainly an ionic conductor down 10-17 atm at 800°C. These results confirm the suitability of the recently discovered La2Mo 2Q9-based compounds as electrolytes in solid oxide fuel cell applications.",

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T1 - Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La2Mo2O9

AU - Tarancón, A.

AU - Norby, T.

AU - Dezanneau, G.

AU - Morata, A.

AU - Peiró, F.

AU - Morante, J. R.

PY - 2004/11/23

Y1 - 2004/11/23

N2 - Transport number measurements and impedance spectroscopy in controlled temperature and atmosphere were used to investigate the electrical conduction properties of La2Mo2O9. The compound is a pure oxygen ion conductor in the temperature range of 400-800°C with oxide ion transport numbers greater than 0.99. The effect of the oxygen partial pressure on the electrical conductivity of La2Mo2O9 was investigated from 1 to 10-22 atm, showing that the material is stable and mainly an ionic conductor down 10-17 atm at 800°C. These results confirm the suitability of the recently discovered La2Mo 2Q9-based compounds as electrolytes in solid oxide fuel cell applications.

AB - Transport number measurements and impedance spectroscopy in controlled temperature and atmosphere were used to investigate the electrical conduction properties of La2Mo2O9. The compound is a pure oxygen ion conductor in the temperature range of 400-800°C with oxide ion transport numbers greater than 0.99. The effect of the oxygen partial pressure on the electrical conductivity of La2Mo2O9 was investigated from 1 to 10-22 atm, showing that the material is stable and mainly an ionic conductor down 10-17 atm at 800°C. These results confirm the suitability of the recently discovered La2Mo 2Q9-based compounds as electrolytes in solid oxide fuel cell applications.

U2 - 10.1149/1.1795054

DO - 10.1149/1.1795054

M3 - Article

AN - SCOPUS:8444241921

SN - 1099-0062

VL - 7

SP - A373-A375

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 10

ER -

Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La2Mo2O9

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Conductivity dependence on oxygen partial pressure and oxide-ion transport numbers determination for La₂Mo₂O₉