| 新型阴极材料Ba0.5Sr0.5Co0.8Fe0.2O3-σ制备与性能研究 |
| Synthesis and Properties of New Cathode Material Ba0.5Sr0.5Co0.8Fe0.2O3-σ |
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| 摘要: |
| 关键词: 中低温固体氧化物燃料电池 阴极材料 Ba0.5Sr0.5Co0.8Fe0.2O3-σ 聚丙烯酸法 |
| 基金项目: |
| Abstract: Ba0.5Sr0.5Co0.8Fe0.2O3-σ(BSCF), a new cathode material for solid oxide fuel cell (SOFC), was synthesized by polyacrylicacid (PAA) method. The lattice structures of samples calcined at different temperatures were characte-rized by XRD. Shrinkage, porosity and pore size of the porous BSCF as a function of sintering temperature were investigated. It was found that the cubic perovskite structure could be formed after calcination at 800 ℃ for 2 h, but not well crystallized as seen from some unknown phases, and the pure cubic perovskite structure was formed after calcination at 1 150 ℃ for 2 h. The particle size of BSCF was less than 1～2 μm. The shrinkage of the porous BSCF increased with sintering temperature, but the opposite was true for the porosity. After sintering at 1 100 ℃ for 4 h, the porous BSCF was still in an appropriate structure, with porosity of 29% and electrical conductivity above 400 S·cm-1. |
| Keywords: ITSOFC cathode Ba0.5Sr0.5Co0.8Fe0.2O3-σ polyacrylicacid |
| 投稿时间：2005-01-04 修订日期：2005-04-20 |
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| 李嵩,孙明涛,季世军,孙俊才.新型阴极材料Ba0.5Sr0.5Co0.8Fe0.2O3-σ制备与性能研究[J].无机化学学报,2005,21(8):1265-1269. |
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