Further improvement in performances of La0.6Sr0.4Co0.2Fe0.8O3-δ - doped ceria composite oxygen electrodes with infiltrated doped ceria nanoparticles for reversible solid oxide cells

被引：35

作者：

Brito, Manuel E. ^{[1
]}

Morishita, Hiroki ^{[2
]}

Yamada, Junya ^{[2
]}

Nishino, Hanako ^{[3
]}

Uchida, Hiroyuki ^{[1
,3
]}

机构：

[1] Univ Yamanashi, Clean Energy Res Ctr, Takeda 4, Kofu, Yamanashi 4008510, Japan

[2] Univ Yamanashi, Dept Appl Chem, Fac Engn, Takeda 4, Kofu, Yamanashi 4008510, Japan

[3] Univ Yamanashi, Fuel Cell Nanomat Ctr, Takeda 4, Kofu, Yamanashi 4008510, Japan

来源：

JOURNAL OF POWER SOURCES | 2019年 / 427卷

基金：

日本科学技术振兴机构;

关键词：

Oxygen electrode; Reversible solid oxide cells; Nanoparticles infiltration; Samaria-doped ceria; Lanthanum strontium cobalt ferrite; FUEL-CELLS; ELECTROCHEMICAL PERFORMANCE; SDC INTERLAYER; CATHODE; ELECTROLYSIS; DEGRADATION; PROTON;

D O I：

10.1016/j.jpowsour.2019.04.066

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have developed high-performance oxygen electrodes for reversible solid oxide cells. La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) center dot (CeO2)(0.8)(SmO1.5)(0.2) (SDC) composite scaffolds were infiltrated with SDC nanoparticles. The electrode with 30 vol% load of SDC nanoparticles exhibited very low overpotentials, eta <= 0.010 V for anodic and vertical bar eta vertical bar <= 0.030 V for cathodic reactions at 0.7 A cm(-2) and 800 degrees C, which was ascribed to a noticeable increase in the exchange current densities. The electrodes have shown very stable performance under anodic oxygen evolution operation at -0.5 A cm(-2) and 750 degrees C for 400 h. Such electrodes developed are extremely promising oxygen electrodes for R-SOC ever reported.

引用

页码：293 / 298

页数：6

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