Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9761671 | Solid State Ionics | 2005 | 5 Pages |
Abstract
Zirconia stabilized with 8 mol% scandia (8ScSZ) powder was synthesized using glycine nitrate process (GNP) for use as the electrolyte of an intermediate temperature solid oxide fuel cell (IT-SOFC). The powder was compacted into a disc and sintered at 1600 °C for 6 h in air for characterization. 8ScSZ consisted of a mixture of cubic and tetragonal phases after sintering. It showed four times as high electrical conductivity (0.159 S/cm) as 8YSZ (0.039 S/cm) at 800 °C. The reactivity of 8ScSZ in contact with La0.6Sr0.4Co0.2Fe0.8O3 turned out to be fairly good. Its linear thermal expansion coefficient was measured to be 11.9Ã10â6/°C. The performance of a single cell was considerably improved when the 8ScSZ electrolyte was substituted for 8YSZ with other conditions kept unaltered.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Dokyol Lee, Insung Lee, Youngsuck Jeon, Rakhyun Song,