Bibliographic Details
| Title: |
Synthesis and Evaluation of LaBaCo 2− x Mo x O 5+ δ Cathode for Intermediate-Temperature Solid Oxide Fuel Cells. |
| Authors: |
He, Shoucheng1 (AUTHOR) hesc@ycit.edu.cn, Zhang, Lanqing1 (AUTHOR), Cai, Jiantao1 (AUTHOR), Wu, Xingyu1 (AUTHOR), Sun, Hanxi1 (AUTHOR), Du, Tao1 (AUTHOR) |
| Source: |
Materials (1996-1944). Sep2022, Vol. 15 Issue 17, p5858. 11p. |
| Subject Terms: |
*SOLID oxide fuel cells, *CATHODES, *THERMAL expansion |
| Abstract: |
LaBaCo2−xMoxO5+δ (LBCMx, x = 0–0.08) cathodes synthesized by a sol-gel method were evaluated for intermediate-temperature solid oxide fuel cells. The limit of the solid solubility of Mo in LBCMx was lower than 0.08. As the content of Mo increased gradually from 0 to 0.06, the thermal expansion coefficient decreased from 20.87 × 10−6 K−1 to 18.47 × 10−6 K−1. The introduction of Mo could increase the conductivity of LBCMx, which varied from 464 S cm−1 to 621 S cm−1 at 800 °C. The polarization resistance of the optimal cathode LBCM0.04 in air at 800 °C was 0.036 Ω cm2, reduced by a factor of 1.67 when compared with the undoped Mo cathode. The corresponding maximum power density of a single cell based on a YSZ electrolyte improved from 165 mW cm−2 to 248 mW cm−2 at 800 °C. [ABSTRACT FROM AUTHOR] |
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