High-temperature proton conductivity in acceptor-doped LaNbO4

@inproceedings{Haugsrud2006HightemperaturePC,
  title={High-temperature proton conductivity in acceptor-doped LaNbO4},
  author={Reidar Haugsrud and Truls Norby},
  year={2006}
}
Abstract The conductivity of acceptor-doped LaNbO 4 has been investigated in the temperature range 300 to 1200 °C as a function of the oxygen pressure and water vapor pressure by means of impedance spectroscopy and EMF measurements. The conductivity is predominantly ionic below 800 °C in air and for higher temperatures under reducing conditions. Protons are the major ionic charge carrier in the presence of water vapor. A maximum in proton conductivity of ∼ 0.001 S/cm was obtained at 950 °C in… CONTINUE READING

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