Carbon-resistant Ni-YSZ/Cu-CeO₂-YSZ dual-layer hollow fiber anode for micro tubular solid oxide fuel cell

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• 作者：Xiuxia Meng ; Xun Gong ; Naitao Yang ; Yimei Yin ; Xiaoyao Tan ; Zi-Feng Ma
• 关键词：Dual-layer hollow fiber ; Micro tubular solid oxide fuel cell (MT-SOFC) ; Co-spinning-sintering ; Ni-YSZ/Cu&ndash ; CeO2-YSZ anode ; Carbon-resistance
• 刊名：International Journal of Hydrogen Energy
• 出版年：6 March, 2014
• 年：2014
• 卷：39
• 期：8
• 页码：3879-3886
• 全文大小：1886 K

文摘

A NiO-YSZ/porous YSZ dual-layer hollow fiber with an asymmetric structure was fabricated by a co-spinning-sintering method. A dense YSZ electrolyte film was prepared on NiO-YSZ layer by dip-coating method and calcined at 1450聽掳C; subsequently a porous cathode was dip-coated on the dense YSZ electrolyte film using LSM-YSZ (in the weight ratio 4:1) ink to fabricate a micro tubular solid oxide fuel cell (MT-SOFC). Cu-CeO₂ catalyst was impregnated into the porous YSZ layer to form the second anode composition. The power output of the MT-SOFC with Ni-YSZ/Cu-CeO₂-YSZ graded anode was up to 242聽mW聽cm^鈭? operated at 850聽掳C using CH₄ as fuel and air as oxidant. Little carbon deposition was observed on the double anode using methane as the fuel after 60聽h' stable operation.