کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1283956 | 1497960 | 2014 | 8 صفحه PDF | دانلود رایگان |
• Fully dense BZCLn532 ceramics were synthesized by SSRS method with aid of NiO.
• Sintering temperature could be decreased to 1400 °C, except for BZCY532 (1600 °C).
• Conductivities of the BZCLn532 ceramics were tested in both dry and wet air.
• BZCY532-based electrolyte is promising oxygen ion conductor for ITSOFCs.
• BZCY532-based electrolyte is also an attractive proton conductor for ITSOFCs.
BaZr0.5Ce0.3Ln0.2O3−δ (BZCLn532, Ln = Y, Sm, Gd, Dy) based electrolytes were successfully synthesized by a cost-effective solid-state reactive sintering (SSRS) method while using 1.0 wt.% NiO as a sintering aid. Dense pellets of BZCLn532 compounds can be prepared at sintering temperatures of 1600 °C (BZCY532) and 1400 °C (BZCS532, BZCG532 and BZCD532). The conductivities of the dense BZCLn532 ceramics were tested in dry and wet air at temperatures of 700 °C–200 °C. On the basis of the obtained results, it could be concluded that the BZCY532-based electrolyte show promise for use as oxygen-ion conductors and proton conductors in intermediate temperature solid oxide fuel cells (ITSOFCs).
Journal: Journal of Power Sources - Volume 272, 25 December 2014, Pages 786–793