血喷射 (Bi2O3) 0.705 (Er2O3) 0.245 (WO3) 0.05 电解质用于中温固体氧化物燃料电池 (IT-SOFCs) 的电解质
Rui Chen1, Cheng-Xin Li1, Chang-Jiu Li1
1State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shanxi People's Republic of China.
Journal of thermal spray technology
|July 31, 2023
概括
稳定 bismuth 氧化物电解质显示高离子导电性中等温度固体氧化物燃料电池 (IT-SOFCs). 喷等离子体的EWSB材料为直接应用提供了出色的稳定性和导电性.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 稳定 bismuth 氧化物 (Bi2O3) 与化物结构 (δ-Bi2O3) 是中温固体氧化物燃料电池 (IT-SOFC) 的关键电解质,由于其高氧离子导电性.
- 三元系统Bi2O3-Er2O3-WO3特别以其增强的离子导电性和热稳定性而闻名.
研究的目的:
- 通过使用等离子体喷雾来研究沉积密Bi2O3-Er2O3-WO3 (EWSB) 电解质的可行性.
- 评估用于IT-SOFC应用的等离子喷涂EWSB的结构和电气性能.
主要方法:
- 用于电解质沉积的等离子体喷射技术.
- 用于相结构分析的X射线衍射 (XRD).
- 扫描电子显微镜 (SEM) 用于微观结构的表征.
- 在高温下测量离子导电性.
主要成果:
- 喷等离子体的EWSB具有密集的微观结构,具有良好的粘合层.
- 该材料具有高离子导电性 (在750°C时为0.34 S cm−1) 和出色的稳定性,在长时间的回火后没有降解.
- 沉积的EWSB电解质在750°C时达到0.26 S cm-1的离子导电率,适合直接应用SOFC.
结论:
- 射等离子体是一种可行的方法,用于IT-SOFCs生产密集的EWSB电解质.
- EWSB材料表现出有希望的性能特性,包括高离子导电性和热稳定性.
- 开发的EWSB电解质可以直接用于中温固体氧化物燃料电池.
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