Trade-off between oxygen reduction reaction activity and CO2 stability in a cation doped Ba0.9Co0.7Fe0.3O3−δ perovskite cathode for solid oxide fuel cells

2020 ◽  
Vol 4 (10) ◽  
pp. 5229-5237
Author(s):  
Yi Lu ◽  
Xinyu Zhao ◽  
Zhihong Wang ◽  
Xifeng Ding
Keyword(s):  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxygen Reduction Reaction Activity ◽  
Trade Off ◽  
New Type

Highly electrochemical performance and CO2 durability are two challenges for exploring cathodes in SOFCs. A new type of Ba0.9Co0.7Fe0.2M0.1O3−δ (M = Zr, Nb, Y) perovskites as promising cathode for IT-SOFCs has been developed with cations doping.

Tailoring defect chemistry at interfaces for promoted oxygen reduction reaction kinetics

2020 ◽  
Vol 8 (44) ◽  
pp. 23313-23322
Author(s):  
Seo Ju Kim ◽  
Ja Yang Koo ◽  
Taeeun Mun ◽  
Mingi Choi ◽  
Wonyoung Lee
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Reaction Kinetics ◽  
Oxygen Reduction ◽  
Defect Chemistry ◽  
Reduction Reaction ◽  
Solid Oxide ◽  
Oxide Fuel

Engineering the defect chemistry at the interface between the electrolyte and the electrode is crucial to facilitate oxygen reduction reaction, thereby improve the electrochemical performance of intermediate temperature solid oxide fuel cells.

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