High performance yttria-stabilized zirconia based intermediate temperature solid oxide fuel cells with double nano layer composite cathode

2017 ◽  
Vol 42 (2) ◽  
pp. 1093-1102 ◽  
Author(s):  
Xiaoyan Wu ◽  
Yu Tian ◽  
Xiaoliang Zhou ◽  
Xiaowei Kong ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Layer Composite

A Multiphysics Modeling Study of (Pr0.7Sr0.3)MnO3±δ∕8mol% Yttria-Stabilized Zirconia Composite Cathodes for Solid Oxide Fuel Cells

2004 ◽  
Vol 2 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Ke An ◽  
Kenneth L. Reifsnider
Keyword(s):  
Fuel Cells ◽  
Ionic Conductivity ◽  
Solid Oxide Fuel Cells ◽  
Current Density ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Before And After

Solid oxide fuel cells (SOFCs) are expected to be a future power source. Simulation analyses of SOFCs can help to understand well the interactive functions among the multiphysics phenomena in the SOFC system. A three-dimensional multiphysics finite-element model was used to simulate the performance of a half-cell SOFC with (Pr0.7Sr0.3)MnO3±δ∕8mol% yttria-stabilized zirconia (8YSZ) composite cathode on one side of the 8YSZ electrolyte before and after aging. Multiphysics phenomena in the SOFC were considered in the modeling. The current/voltage curves simulated matched the experimental data before and after aging. The average current density was found to have a linear relationship to the logarithm of the effective exchange current density. The effect of the effective ionic conductivity of the composite cathode was more apparent for small total effective ionic conductivity values than for large ones.

A homogeneous grain-controlled ScSZ functional layer for high performance low-temperature solid oxide fuel cells

2018 ◽  
Vol 6 (34) ◽  
pp. 16506-16514 ◽  
Author(s):  
Soonwook Hong ◽  
Jonghyun Son ◽  
Yonghyun Lim ◽  
Hwichul Yang ◽  
Fritz B. Prinz ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Functional Layer ◽  
Cell Systems

Scandia-stabilized zirconia (ScSZ) is employed as a cathodic functional layer onto yttria-stabilized zirconia based fuel cell systems for low-temperature solid oxide fuel cells.

Intermediate-Temperature Solid Oxide Fuel Cells with Y0.25Bi0.75O1.5-Ag Cathodes

2005 ◽  
Vol 475-479 ◽  
pp. 1157-1160 ◽  
Author(s):  
Xing Yan Xu ◽  
Chang Rong Xia ◽  
Shou Guo Huang ◽  
Guang Yao Meng
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Spin Coating ◽  
Polarization Resistance ◽  
Interfacial Polarization ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Stabilized Zirconia

Composites consisting of silver and yttria-stabilized bismuth oxide (YSB) were fabricated and investigated as cathodes for intermediate-temperature solid oxide fuel cells (SOFCs) with thin electrolyte films of yttria-stabilized zirconia (YSZ). The films were deposited using spin coating with YSZ suspension. Comparison of YSB-Ag and conventional La0.8Sr0.2MnO3 (LSM) based cathodes showed that the YSB-Ag composite has better electrochemical performance; Interfacial polarization resistance of YSB-Ag cathode is 0.13 Ωcm2 at 750oC. Power density of the single cell with YSB-Ag cathode was about 535 mW/cm2 at 750oC, while that with LSM-Sm0.2Ce0.8O1.9 cathode was only 329 mW/cm2.

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