Zr and Y co-doped perovskite as a stable, high performance cathode for solid oxide fuel cells operating below 500 °C

被引：332

作者：

Duan, Chuancheng ^{[1
]}

Hook, David ^{[2
]}

Chen, Yachao ^{[1
]}

Tong, Jianhua ^{[3
]}

O'Hayre, Ryan ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Met & Mat Engn, 1500 Illinois St, Golden, CO 80401 USA

[2] CoorsTek, 600 9th St, Golden, CO 80401 USA

[3] Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29634 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2017年 / 10卷 / 01期

关键词：

X-RAY-DIFFRACTION; TEMPERATURE; BA0.5SR0.5CO0.8FE0.2O3-DELTA; NANOPARTICLES; CONDUCTIVITY; ATMOSPHERES; STABILITY; EXPANSION; MEMBRANES;

D O I：

10.1039/c6ee01915c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Zr and Y co-doped perovskite BaCo0.4Fe0.4Zr0.1Y0.1O3-delta (BCFZY0.1) was recently developed as a promising new cathode for protonic ceramic fuel cells (PCFCs). Here, it is applied for the first time as a cathode for low-temperature solid oxide fuel cells (LT-SOFCs). It exhibits large lattice parameters, high oxygen reduction reaction (ORR) activity, exceptional low-temperature performance, long-term stability, and excellent chemical compatability with ceria-based SOFC electrolytes. When BCFZY0.1 is used as the cathode in Ce0.8Gd0.2O2-delta (GDC20)-based SOFCs, it enables a peak power density of 0.97 W cm(-2) at 500 degrees C with 2500 hours stable performance and complete recoverability without any degradation after more than 80 fast thermal ramping cycles. Even at 350 degrees C, peak power density reaches 0.13 W cm(-2). It also shows good H2O and CO2 tolerance.

引用

页码：176 / 182

页数：7

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