Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1622882 | Journal of Alloys and Compounds | 2009 | 6 Pages |
Abstract
BaZr0.1Ce0.7Y0.2O3âδ (BZCY7) perovskite oxide was prepared by gel-casting and solid-state reaction techniques as proton-conducting electrolyte for low-temperature solid oxide fuel cells (LT-SOFCs). X-ray diffraction analysis indicated that the phase formation temperature of BZCY7 powder synthesized by gel-casting was 100-150 °C lower than that by solid-state reaction method. The BZCY7 electrolytes prepared by gel-casting exhibited better sintering activity and higher electrical conductivity. After sintering at 1550 °C for 5 h, the relative density and electrical conductivity of the gel-casting derived BZCY7 reached 95% and 5 Ã 10â3 S/cm in H2 (â¼3% H2O) at 500 °C. However, for the solid-state reaction method, the sample had a relative density of 86% and electrical conductivity of 2 Ã 10â3 S/cm under the same condition.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Hanping Ding, Bin Lin, Daru Fang, Yingchao Dong, Songlin Wang, Xingqin Liu, Guangyao Meng,