Conductivity study of dense BaZr0.9Y0.1O(3 − δ) obtained by spark plasma sintering
Publication: Research - peer-review › Conference article – Annual report year: 2011
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Conductivity study of dense BaZr0.9Y0.1O(3 − δ) obtained by spark plasma sintering. / Ricote, Sandrine; Bonanos, Nikolaos; Wang, Hsiang-Jen; Boukamp, B.A.
In: Solid State Ionics, Vol. 213, 2012, p. 36-41.Publication: Research - peer-review › Conference article – Annual report year: 2011
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TY - CONF
T1 - Conductivity study of dense BaZr0.9Y0.1O(3 − δ) obtained by spark plasma sintering
A1 - Ricote,Sandrine
A1 - Bonanos,Nikolaos
A1 - Wang,Hsiang-Jen
A1 - Boukamp,B.A.
AU - Ricote,Sandrine
AU - Bonanos,Nikolaos
AU - Wang,Hsiang-Jen
AU - Boukamp,B.A.
PB - Elsevier BV North-Holland
PY - 2012
Y1 - 2012
N2 - 10% yttrium doped barium zirconate (BZY10) was synthesized by solid state reaction and a 99.8% dense and transparent sample was prepared by spark plasma sintering (SPS) at 1700 °C for 5 minutes. A single phase compound was obtained, with no evaporation of barium. High-Resolution Transmission Electron Microscopy (HRTEM) images revealed a distinct grain boundary across two grains, confirming no secondary phase formation along grain boundaries. The conductivity was determined as a function of temperature, at two different water vapor pressures, as well as in the D2O vapor exchanged state. The activation energy corresponding to protonic conduction has been determined, and compared to values from literature. The decrease in activation energy with increasing lattice parameters is confirmed. Furthermore, the effective space charge layer width has been estimated at 1.2–1.3 nm.
AB - 10% yttrium doped barium zirconate (BZY10) was synthesized by solid state reaction and a 99.8% dense and transparent sample was prepared by spark plasma sintering (SPS) at 1700 °C for 5 minutes. A single phase compound was obtained, with no evaporation of barium. High-Resolution Transmission Electron Microscopy (HRTEM) images revealed a distinct grain boundary across two grains, confirming no secondary phase formation along grain boundaries. The conductivity was determined as a function of temperature, at two different water vapor pressures, as well as in the D2O vapor exchanged state. The activation energy corresponding to protonic conduction has been determined, and compared to values from literature. The decrease in activation energy with increasing lattice parameters is confirmed. Furthermore, the effective space charge layer width has been estimated at 1.2–1.3 nm.
KW - Membranes
KW - Membraner
U2 - 10.1016/j.ssi.2011.02.011
DO - 10.1016/j.ssi.2011.02.011
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
VL - 213
SP - 36
EP - 41
ER -