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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 5
BKCSDE 35(5)
May 20, 2014 
 
Title
 Studies on Ionic Conduction in Ce0.95Eu0.05P2O7 at Intermediate Temperatures
Author
 Hongtao Wang*, Lin Sun, Chunhua Luo, Suhua Fan
Keywords
 Cerium pyrophosphate, XRD, Conductivity, Electrolyte
Abstract
 In this study, an intermediate temperature ionic conductor, Ce0.95Eu0.05P2O7, was prepared by solid state reaction. The variation of conductivities with the pressure pH2O or time were studied. The highest conductivity of Ce0.95Eu0.05P2O7 sample was observed in dry air atmosphere at 300 °C to be 1.1 × 10−4 S·cm−1 and in wet air atmosphere (pH2O = 7.4 × 103 Pa) at 100 °C to be 1.4 × 10−3 S·cm−1, respectively. The log σ ~ log (pO2) plot result indicated that Ce0.95Eu0.05P2O7 was almost a pure ionic conductor under high oxygen partial pressure and a mixed conductor of ion and electron under low oxygen partial pressure.
Page
 1465 - 1468
Full Text
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