A liquid-solid Reaction Method to Synthesize La0.7Sr0.3MnO3 Powder as Cathode for SOFC

• 作 者: Jingyu Si Weitao Bao
• 机 构: Department of Chemistry and Materials Engineering, Hefei University, Hefei, 230022, China
• 出 处: 2012中国国际粉体技术与应用论坛暨全国粉体技术产品商贸交流会
• 发表日期: 2012年5期
• 关键词: cathode LSM SOFC

La0.7Sr0.3MnO3 (LSM) powders were prepared by liquid-solid reaction method using humidified (3％ H2O) hydrogen as fuel and ambient air as oxidant. These powders were evaluated in terms of phase structure,morphology and fuel cell performances. An electrolyte-supported solid oxide fuel cell (SOFC) was prepared in a conventional manner. The results showed that the formation of LSM perovskite phase was acquired at 1100℃ for 5 h. The particles of the powders were uniform and were about 0.1-0.3μm. At 750 ℃,the maximum power density of a single cell with LSM powder were 135 mWcm-2.