TY - JOUR
T1 - Proton concentration in 15 mol% Y-doped BaZrO3 proton conductors prepared at various temperatures
AU - Iguchi, Fumitada
AU - Nagao, Yuki
AU - Sata, Noriko
AU - Yugami, Hiroo
PY - 2011/6/16
Y1 - 2011/6/16
N2 - Proton concentration as a function of ambient temperature in 15 mol% Y-doped BaZrO3 proton conductors prepared at 1800 °C, 1600 °C and 1400 °C, is measured by thermo-gravimetric (TG) analysis. TG analysis reveals that the maximum proton concentration in the specimen prepared at 1400 °C is over 15 mol%. The value is over the limitation decided by hydration process via oxygen vacancy. Infrared diffuse reflection spectroscopy confirms that additional O-D stretching vibration exists in the specimen. Both results strongly suggest that not a few amounts of water incorporate in the specimen prepared at low temperature through other hydration process.
AB - Proton concentration as a function of ambient temperature in 15 mol% Y-doped BaZrO3 proton conductors prepared at 1800 °C, 1600 °C and 1400 °C, is measured by thermo-gravimetric (TG) analysis. TG analysis reveals that the maximum proton concentration in the specimen prepared at 1400 °C is over 15 mol%. The value is over the limitation decided by hydration process via oxygen vacancy. Infrared diffuse reflection spectroscopy confirms that additional O-D stretching vibration exists in the specimen. Both results strongly suggest that not a few amounts of water incorporate in the specimen prepared at low temperature through other hydration process.
KW - BaZrO
KW - Infrared diffuse reflectance spectroscopy
KW - Proton concentration
KW - Proton conductors
KW - Thermo-gravimetric (TG) analysis
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U2 - 10.1016/j.ssi.2010.05.046
DO - 10.1016/j.ssi.2010.05.046
M3 - Article
AN - SCOPUS:79958775113
VL - 192
SP - 97
EP - 100
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - 1
ER -