Fabrication of metal-supported tubular solid oxide fuel cell by phase-inversion method and in situ reduction

Fabrication of metal-supported tubular solid oxide fuel cell by phase-inversion method and in situ reduction
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相转化法和原位还原法制备金属支撑管式固体氧化物燃料电池

DOI:
10.1016/j.ijhydene.2016.04.253
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发表时间:
2016-07
影响因子:
7.2
通讯作者:
Han Minfang
Han Minfang
中科院分区:
工程技术2区
文献类型:
--
作者:
Han Zongying;Yang Zhibin;Han Minfang

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采用相转化、共烧结和原位还原等简单工艺,成功制备了Ni-Fe合金支撑的管状固体氧化物燃料电池(SOFC)。管状金属支撑体具有由均匀分布的海绵状孔隙组成的特殊结构。结果表明,将所制备的管状支撑体与半电池(阳极和电解质层)共烧结有利于获得无裂纹的YSZ电解质膜。Ni-Fe合金管除了作为SOFC的支撑体外,还在完全原位还原后作为阳极侧的集流体。在800 °C下,以湿氢为燃料,环境空气为氧化剂,Ni-Fe合金支撑的管状SOFC的最大功率密度为0.26 W cm− 2。目前的工作证明了使用经济的技术制造具有可接受的性能的金属支撑SOFC的可行性。
Ni–Fe alloy supported tubular solid oxide fuel cells (SOFCs) were successfully fabricated by a low cost and simple process involving phase-inversion, co-sintering and in situ reduction. The tubular metal supports have a special structure consisting of uniformly distributed sponge-like pores. It has proven that co-sintering the as-prepared tubular supports together with half cells (anode and electrolyte layers) is in favor of obtaining the YSZ crack-free electrolyte film. In addition to the support for SOFC, the Ni–Fe alloy tube also serves as current collector at the anode side after fully in situ reduction. The maximum power densities of the Ni–Fe alloy supported tubular SOFCs are 0.26 W cm−2at 800 °C, using moist hydrogen as fuel and ambient air as oxidant. The present work demonstrates the feasibility for the fabrication of metal-supported SOFCs with acceptable performance using economical techniques.
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