High-performance low-temperature solid oxide fuel cell with novel BSCF cathode
High-performance low-temperature solid oxide fuel cell with novel BSCF cathode
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DOI：
10.1016/j.jpowsour.2006.03.095
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发表时间：
2006-10
影响因子：
9.2
通讯作者：
Qinglin Liu;K. Khor;S. Chan
中科院分区：
文献类型：
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作者：
Qinglin Liu;K. Khor;S. Chan
成功组装了一种由致密10μm Gd0.1Ce0.9O1.95（GDC）电解质、多孔ba0.5 sr0.5 co0.8 fe0.3 2o3−δ(BSCF)阴极和多孔Ni-GDC金属陶瓷阳极组成的阳极支撑固体氧化物燃料电池（SOFC），并对其进行了电化学表征。以加湿（3%水蒸气）的氢气为燃料，空气为氧化剂，电池在600℃和500℃下分别表现出0.903和0.984V的开路电压。该电池在600、550、500、450和400°C时的峰值功率密度分别为1329、863、454,208和83mWcm−2。这些结果令人印象深刻，并证明了BSCF作为正极材料在以GDC作为电解质的新一代sofc中的潜力。此外，在低于600°C的温度下的持续性能保证了该SOFC在固定和移动应用中的商业开发。
An anode-supported solid oxide fuel cell (SOFC), consisting of a dense 10μm Gd0.1Ce0.9O1.95(GDC) electrolyte, a porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ(BSCF) cathode and a porous Ni–GDC cermet anode, is successfully assembled and electrochemically characterized. With humidified (3% water vapour) hydrogen as the fuel and air as the oxidant, the cell exhibits open-circuit voltages of 0.903 and 0.984V when operating at 600 and 500°C, respectively. The cell produces peak power densities of 1329, 863, 454, 208 and 83mWcm−2at 600, 550, 500, 450 and 400°C, respectively. These results are impressive and demonstrate the potential of BSCF for use as the cathode material in new-generation SOFCs with GDC as the electrolyte. In addition, the sustained performance at temperatures below 600°C warrants commercial exploitation of this SOFC in stationary and mobile applications.