Structural and electrochemical properties of yttrium-doped barium zirconate by addition of CuO

The effects of NiO addition on the structure and transport properties of proton conducting BaZr0.8Y0.2O3−

“…The ion transport number of BZY decreases from 0.96 at 500°C to 0.92 at 800°C since dehydration of BZY and increased hole mobility result in the a decrease of the transport number as temperature increases. The transport number in this study is comparable with that of BaZr 0.85 Y 0.15 O 3Àd with ZnO [9,30] and BaZr 0.9 Y 0.1 O 3Àd with CuO [31], confirming that the electronic conductivity contribution of the BaY 2 NiO 5 secondary phase is negligible for BZY with 2 wt.% NiO. The current-voltage curves of a BZY electrolyte supported cell (Pt/BZY/Pt) are illustrated in Fig.…”

Fabrication and properties of Ba(Zr1−xCex)0.9Y0.1O2.95/NaCl composite electrolyte materials

“…Wang et al [24] researched sintering behavior and conductivity of yttrium-doped BaCeO 3 -BaZrO 3 solid solutions using ZnO additive. The results given by several authors also pointed out that excessive sintering aid could lower the electrical conductivity [15,22,24].…”

“…Recently, Y-doped BaCe x Zr 1−x O 3−ı (BZCY) composites [16][17][18][19][20] also have been studied and some additives were added to improve the sintering behavior [21,22]. Guo et al [23] reported enhanced sinterability of BaZr 0.4 Ce 0.4 Y 0.2 O 3−ı with ZnO as a sintering aid.…”

Two-Step Reactive Aid Sintering of BaZr0.8Y0.2O3−δ Proton-Conducting Ceramics

“…14,15 CuO-doped BZY was also densified at 1600°C with an average grain size of 0.5-1 lm. 16 Bi 2 O 3 was also reported to improve the densification of BZY. 17 Here, in this report, we introduced B 2 O 3 -Li 2 O as a liquid-phase sintering aid for BZYbased ceramics.…”