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首页> 外文会议>Materials for energy conversion and storage >Investigation of Cobalt-free Cathode Material Ba_(0.5)Sr_(0.5)Fe_(0.8)Cu_(0.2)O(3-δ) for Micro-tubular SOFC with Asymmetric Structure Anode
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Investigation of Cobalt-free Cathode Material Ba_(0.5)Sr_(0.5)Fe_(0.8)Cu_(0.2)O(3-δ) for Micro-tubular SOFC with Asymmetric Structure Anode

机译：具有非对称结构阳极的微管SOFC的无钴阴极材料Ba_（0.5）Sr_（0.5）Fe_（0.8）Cu_（0.2）O（3-δ）的研究

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摘要

A cobalt-free perovskite oxide Ba_(0.5)Sr_(0.5)Fe_(0.8)Cu_(0.2)O(3-δ) (BSFCu) is applied as the cathode material for intermediate temperature micro-tubular solid oxide fuel cells (SOFCs) with asymmetric structure anode. The NiO-YSZ hollow fiber anode as support was prepared by the phase inversion technique. The as-prepared fiber anode shows a special asymmetric structure consisting of porous sponge-like structure in the middle and finger-like porous structure on the inner and outer side. Dense thin YSZ electrolyte membrane and SDC transition layer were deposited on the NiO-YSZ hollow fiber anode by a vacuum-assisted dip-coating and co-sintering technique. Laboratory-sized micro-tubular single cells of NiO-YSZ/YSZ+SDC/BSFCu-SDC were tested at 650-750℃ with humidified H_2 as the fuel and static ambient air as the oxidant. The peak power densities of 437.2, 326.5 and 214.4 mWcm~(-2) can be obtained at 750, 700 and 650℃, respectively. The experimental results indicate that the cobalt-free perovskite oxide BSFCu is a promising cathode material candidate for the developed intermediate temperature micro-tubular SOFC with asymmetric hollow fiber anode.
机译：将无钴钙钛矿氧化物Ba_（0.5）Sr_（0.5）Fe_（0.8）Cu_（0.2）O（3-δ）（BSFCu）用作中温微管固体氧化物燃料电池（SOFC）的阴极材料具有不对称结构的阳极。通过相转化技术制备了NiO-YSZ中空纤维阳极作为载体。所制备的纤维阳极显示出特殊的不对称结构，其由中间的多孔海绵状结构和内侧和外侧的指状多孔结构组成。通过真空辅助浸涂和共烧结技术，在NiO-YSZ中空纤维阳极上沉积致密的YSZ电解质薄膜和SDC过渡层。 NiO-YSZ / YSZ + SDC / BSFCu-SDC实验室大小的微管单电池在650-750℃下进行了测试，以加湿的H_2为燃料，以静态环境空气为氧化剂。在750、700和650℃分别可获得437.2、326.5和214.4 mWcm〜（-2）的峰值功率密度。实验结果表明，无钴钙钛矿氧化物BSFCu是开发的具有不对称中空纤维阳极的中温微管SOFC的有希望的阴极材料。

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  • 来源
  • 会议地点 Shenzhen(CN)
  • 作者

    Xiaozhen Zhang; Yongqing Wang; Jing Zhang; Qibing Chang; Yuhua Jiang; Jian-er Zhou;

  • 作者单位

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

    School of Material Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Jiangxi Universities for Inorganic Membranes, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, P.R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    cobalt-free perovskite cathode; micro-tubular solid oxide fuel cell; phase inversion; electrochemical performance;

    机译：无钴钙钛矿阴极；微管固体氧化物燃料电池；相位反转电化学性能;

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