Improved controllability of wet infiltration technique for fabrication of solid oxide fuel cell anodes
Improved controllability of wet infiltration technique for fabrication of solid oxide fuel cell anodes
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提高湿法渗透技术制造固体氧化物燃料电池阳极的可控性
DOI：
10.1016/j.scriptamat.2017.06.054
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发表时间：
2017
影响因子：
6
通讯作者：
Yoshida Hideo
中科院分区：
文献类型：
--
作者：
Kishimoto Masashi;Kawakami Yuki;Otani Yuki;Iwai Hiroshi;Yoshida Hideo
采用湿法浸渗技术制备了固体氧化物燃料电池Ni/钇稳定氧化锆阳极，并通过详细的三维微观结构分析定量地证明了浸渗技术控制阳极微观结构的能力。微观结构分析揭示了渗透阳极的有利方面，例如较大的三相边界密度和足够大的孔径，并且它们大多是通过常规粉末混合和烧结方法无法实现的。渗透技术的改进的可控性预计将有助于定制多孔微结构，以满足阳极内的运输和电化学反应的多种要求。
Ni/yttria-stabilized zirconia anodes of solid oxide fuel cells are fabricated by a wet infiltration technique and the ability of the infiltration technique to control the anode microstructure is quantitatively demonstrated by a detailed three-dimensional microstructural analysis. The microstructural analysis reveals favorable aspects of the infiltrated anodes, such as larger triple-phase boundary density and sufficiently large pore size, and they are mostly unachievable by the conventional powder-mixing and sintering approaches. The improved controllability of the infiltration technique is expected to be useful to tailor porous microstructures to meet the multiple requirements for transport and electrochemical reactions within the anodes.