Enhancing oxygen reduction reaction of YSZ/La2NiO4+δ using an ultrathin La2NiO4+δ interfacial layer
Enhancing oxygen reduction reaction of YSZ/La2NiO4+δ using an ultrathin La2NiO4+δ interfacial layer
复制标题
利用层状La 2NiO 4 +δ界面层促进YSZ/La 2NiO 4 +δ的氧还原反应
DOI：
10.1016/j.jallcom.2018.02.339
复制
发表时间：
2018-05-25
影响因子：
6.2
通讯作者：
Viricelle, J. P.
中科院分区：
文献类型：
--
作者：
Benamira, M.;Ringuede, A.;Viricelle, J. P.
在这项工作中，La2NiO4+δ被用作中温固体氧化物燃料电池（IT-SOFC）的阴极材料。使用扫描电子显微镜、X射线衍射和电化学阻抗谱研究了通过浸涂或溅射在YSZ/La2NiO4+δ界面处沉积的超薄La(2)NiO4(+δ)层(80 nm)的存在的影响。通过丝网印刷沉积厚的La2NiO4+δ多孔阴极层，并在1000℃烧结2h或1200℃烧结20min，以研究烧结温度对其电化学性能的影响。结果表明，阴极的电化学性能受到沉积技术的影响。使用溅射沉积的纳米薄膜界面层可以获得最佳的电化学性能。在阴极和电解质之间引入纳米颗粒超薄界面是一种很有前途的技术，可以降低与阴极氧还原反应（ORR）相关的极化电阻。 (c) 2018 Elsevier B.V. 保留所有权利。
In this work, La2NiO4+delta is used as cathode material for Intermediate temperature solid oxide fuel cells (IT-SOFC). Scanning electron microscopy, X-ray diffraction, and electrochemical impedance spectroscopy are used to investigate the effect of the presence of an ultrathin La(2)NiO4(+delta) layer (80 nm) deposited by dip-coating or sputtering at the interface YSZ/La2NiO4+delta. The thick porous cathode layer of La2NiO4+delta is deposited by screen-printing, and sintered at 1000 degrees C for 2 h or 1200 degrees C for 20 min in order to study the effect of sintering temperature on the electrochemical properties. The results show that the electrochemical performances of the cathode are influenced by the deposition technique. The best electrochemical properties are obtained with the use of the nano film interface layer deposited by sputtering. The introduction of ultrathin interface with nano grained between the cathode and electrolyte is a promising technique to reduce polarization resistance associated with oxygen reduction reaction (ORR) on the cathode. (c) 2018 Elsevier B.V. All rights reserved.