High Efficiency Hydrogen Membrane Fuel Cells with BaCe0.8Y0.2O3-δ Electrolyte Thin Films and Pd1-xAgx Solid Anodes
High Efficiency Hydrogen Membrane Fuel Cells with BaCe0.8Y0.2O3-δ Electrolyte Thin Films and Pd1-xAgx Solid Anodes
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采用 BaCe0.8Y0.2O3-δ 电解质薄膜和 Pd1-xAgx 固体阳极的高效氢膜燃料电池
DOI：
10.1149/2.0661706jes
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
H. Habazaki
中科院分区：
文献类型：
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作者：
Y. Aoki;T. yamaguchi;S. Kobayashi;C. Zhu;H. Habazaki
采用射频溅射法在Pd 1-xAgx（x= 0，0.2和0.4）固体阳极上沉积BaCe0.8Y0.2O3-δ薄膜电解质（厚度为1 μm），研究了氢膜燃料电池（HMFC）在中温600 ℃下的性能.使用Pd 0.8 Ag 0.2阳极在600 C下的最大功率密度达到1.2 W cm− 2，该值远高于最近阳极支撑的质子传导陶瓷燃料电池（PCFC）的冠军数据。电化学阻抗分析表明，透氢率对HMFC的阳极极化损失起决定性作用，因为透氢率越高，BaCe0.8Y0.2O3-δ/Pd氧化物-金属界面的电荷转移电阻和浓差过电位越大.
Fuel cell performances at intermediate temperature 600 C were examined for the hydrogen membrane fuel cell (HMFC) designed by rf sputter deposition of a BaCe 0.8 Y 0.2 O 3-δ thin film electrolyte (1 μm thickness) on a Pd 1-x Ag x (x= 0, 0.2 and 0.4) solid anode. The maximum power density reached to 1.2 W cm− 2 at 600 C with the Pd 0.8 Ag 0.2 anodes, and this value was much higher than the champion data of the recent anode-supported proton-conducting ceramic fuel cells (PCFCs). By electrochemical impedance analysis, it was demonstrated that the hydrogen permeability was crucial to the anode polarization losses of the HMFC because the charge transfer resistances and concentration overpotentials at BaCe 0.8 Y 0.2 O 3-δ/Pd oxide-metal interfaces are simultaneously improved with the alloys having higher hydrogen permeability.