期刊
NANO LETTERS
卷 11, 期 6, 页码 2202-2205出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl104417n
关键词
Yttria-doped ceria; low-temperature solid oxide fuel cells; interlayer; atomic layer deposition; impedance spectroscopy; oxide ion incorporation kinetics
Interlayering 17.5 nm of Yttria-doped ceria (YDC) thin films between bulk yttria-stabilized-zirconia electrolyte and a porous Pt cathode enhanced the performance of low-temperature solid oxide fuel cells. The added YDC interlayer (14.11% doped Y(2)O(3)) was fabricated by atomic layer deposition and reduced the cathode/electrolyte interfacial resistances while increasing the exchange current density j(0) by a factor of 4 at operating temperatures between 300-500 degrees C. Tafel plots and the fitted impedance data suggest that the charge transfer coefficient a of interlayered SOFCs was 1.25 times higher, and the electrode/interfacial activation energy was reduced from 0.85 to 0.76 eV.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据