电极
材料科学
氧化剂
电化学
烧结
电解质
氧化物
钛
固体氧化物燃料电池
化学工程
分析化学(期刊)
冶金
化学
有机化学
物理化学
工程类
色谱法
作者
Javier Zamudio‐García,José M. Porras-Vázquez,E. Minaya Ramirez,D. Marrero-López
出处
期刊:ECS transactions
[The Electrochemical Society]
日期:2021-07-09
卷期号:103 (1): 1601-1606
标识
DOI:10.1149/10301.1601ecst
摘要
New strategies are necessary to enhance the efficiency of the electrodes for solid oxide fuel cells (SOFC) applications. Most of the preparation techniques require high sintering temperatures that drastically increases the grain size, leading to a very poor electrochemical activity. On this way, titanium doped ferrites have demonstrated to be promising electrodes, showing high redox stability and acceptable performance. In this study, spray-pyrolysis has been used to prepare nanostructured electrodes of La 0.8 Sr 0.2 Fe 1- x Ti x O 3-δ (x= 0.2 and 0.4) in a single deposition step. An infiltrated electrode architecture was obtained by depositing the electrodes directly on a porous Ce 0.9 Gd 0.1 O 1.95 (CGO) backbone previously screen-printed onto a Zr 0.84 Y 0.16 O 1.92 (YSZ) electrolyte. The properties of this electrode, in comparison with the traditional electrode, are investigated in both oxidizing and reducing conditions for the implementation of these electrodes in Symmetrical Solid Oxide Fuel Cells (SSOFC).
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