Bimetallic (Ni-Fe) anode-supported solid oxide fuel cells with gadolinia-doped ceria electrolyte
Bimetallic (Ni-Fe) anode-supported solid oxide fuel cells with gadolinia-doped ceria electrolyte
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DOI：
10.1016/j.jpowsour.2008.09.080
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发表时间：
2009-01-01
影响因子：
9.2
通讯作者：
Virkar, Anil V.
中科院分区：
文献类型：
--
作者：
Park, Hyeon Cheol;Virkar, Anil V.
制造了包含镍+铁阳极支撑体和组成为Gd0.1Ce0.9O2-δ的氧化钆二氧化铈(GDC)的阳极支撑固体氧化物燃料电池(SOFC)，并评估了它们的性能。阳极载体中Fe 2 O 3 与NiO的摩尔比为3比7。将 Fe2O3 和 NiO 粉末按所需比例混合，然后模压圆盘。将所有其他层依次施加到阳极支撑体上。电池结构由五个不同的层组成：阳极支撑 - Ni + Fe；阳极功能层——Ni+CDC；电解液——CDC；阴极功能层——LSC(La0.6Sr0.4CoO3-delta)+CDC；和阴极集流体-LSC。制造了具有三种不同电解质变化的电池：（1）薄CDC电解质（类似于15μm）； (2)厚CDC电解液(约25μm)； (3)三层GDC/薄氧化钇稳定氧化锆(YSZ)/GDC电解质(类似于25μm)。使用氢气作为燃料和空气作为氧化剂对电池进行测试，温度高达 650 摄氏度。在 650 摄氏度下测得的最大开路电压与 0.83 V 相似，测得的最大功率密度与 0.68 Wcm(-2) 相似。目前的工作表明，可以成功制造带有含 Fe + Ni 阳极支撑的电池。 (c) 2008 Elsevier B.V. 保留所有权利。
Anode-supported solid oxide fuel cells (SOFC) comprising nickel + iron anode support and gadolinia-cloped ceria (GDC) of composition Gd0.1Ce0.9O2-delta thin film electrolyte were fabricated, and their performance was evaluated. The ratio of Fe2O3 to NiO in the anode support was 3 to 7 on a molar basis. Fe2O3 and NiO powders were mixed in the desired proportions and discs were die-pressed. All other layers were sequentially applied on the anode support. The cell structure consisted of five distinct layers: anode support - Ni + Fe; anode functional layer - Ni + CDC; electrolyte - CDC; cathode functional layer - LSC (La0.6Sr0.4CoO3-delta) + CDC; and cathode current collector - LSC. Cells with three different variations of the electrolyte were made: (1) thin CDC electrolyte (similar to 15 mu m); (2) thick CDC electrolyte (similar to 25 mu m); and (3) trilayer GDC/thin yttria-stabilized zirconia (YSZ)/GDC electrolyte (similar to 25 mu m). Cells were tested with hydrogen as fuel and air as oxidant up to 650 degrees C. The maximum open circuit voltage measured at 650 degrees C was similar to 0.83 V and maximum power density measured was similar to 0.68 Wcm(-2). The present work shows that cells with Fe + Ni containing anode support can be Successfully made. (c) 2008 Elsevier B.V. All rights reserved.