MgO-MgAl2O4 - 支持带超高导电性介层的平板管状细分系列SOFC,以提高性能
Yanan Li1, Xiang-Xiang Pan2, Hui-Yu Zhang1
1State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
ACS applied materials & interfaces
|January 31, 2026
概括
研究人员开发了一种新的NiO-MgAl2O4介层,用于固体氧化物燃料电池 (SOFC). 这种中间层提高了陶支持的SOFC的性能和稳定性,这对于高效的能量转化至关重要.
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
- 能源转换 能源转换
背景情况:
- 高性能固体氧化物燃料电池 (SOFC) 需要先进的介层,以提高导电性和界面兼容性.
- 陶支的SOFC,特别是平面管状细分系列设计,面临着层间稳定性和扩散方面的挑战.
研究的目的:
- 为MGO-MgAl2O4 (MMA) 支持的SOFCs开发一种高导电性和兼容性的中间层.
- 为了提高惰性陶支SOFC的性能和长期稳定性.
主要方法:
- 使用共聚工艺制造一个70体积% NiO-30体积% MgAl2O4介层.
- 介层导电性,界面兼容性和扩散抑制的表征.
- 在850°C测试单细胞和16细胞平管状细分系列SOFC性能.
主要成果:
- NiO-MgAl2O4中间层有效地抑制了从MMA基质到25微米的MgO扩散.
- 在工作温度下,层间导电性超过3400 S cm-1.
- 单个电池实现了1.07V的开放电路电压 (OCV) 和760mWcm-2的功率密度,具有出色的稳定性.
- 一个16个细胞的FT-SIS-SOFC堆显示了17V的OCV和850°C的15W的最大输出功率.
结论:
- 开发的NiO-MgAl2O4中间层具有高度导电性和兼容性,显著提高了SOFC的性能.
- 这种介层技术对于推进惰陶支的FT-SIS-SOFCs至关重要.
- 结果表明,高性能,稳定的固体氧化物燃料电池系统的可行途径.
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