SrCo0.9Sb0.1O3–δ cubic perovskite as a novel cathode for intermediate-to-low temperature SOFCs

✍ Scribed by Bin Lin; Songlin Wang; Huili Liu; Kui Xie; Hanping Ding; Mingfei Liu; Guangyao Meng

• Book ID: 104436996
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 615 KB
• Volume: 2009
• Category: Article
• ISSN: 1464-2859
• DOI: 10.1016/s1464-2859(09)70065-3

✦ Synopsis

SDC/SDC/SCS, not yet optimized for performance, was operated from 500°C to 650°C fed with humidified H 2 (~3% H 2 O). A high open-circuit voltage of 0.86 V and a maximum power density of 354 mW/cm 2 were achieved at 650°C. The polarization resistance of the electrodes was as low as 0.13 Ωcm 2 at 650°C.

These results have indicated that the SCS cubic perovskite cathode is a good candidate for operation at or below 650°C, and that dip coating is a simple and potentially commercial prospective route for preparing the key components of SOFCs.