Tradeoff optimization of electrochemical performance and thermal expansion for Co-based cathode material for intermediate-temperature solid oxide fuel cells

2014 ◽  
Vol 125 ◽  
pp. 683-690 ◽  
Author(s):  
Seonhye Park ◽  
Sihyuk Choi ◽  
Jeeyoung Shin ◽  
Guntae Kim
Keyword(s):  
Thermal Expansion ◽  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel

scholarly journals PrBaCo2O6−δ-Ce0.8Sm0.2O1.9 Composite Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells: Stability and Cation Interdiffusion

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 417 ◽  
Author(s):  
Dmitry Tsvetkov ◽  
Nadezhda Tsvetkova ◽  
Ivan Ivanov ◽  
Dmitry Malyshkin ◽  
Vladimir Sereda ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Chemical Interaction ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Composite Cathodes ◽  
Cation Interdiffusion

The single-phase oxide PrBaCo2O6−δ and composites (100 − y)PrBaCo2O6−δ-yCe0.8Sm0.2O1.9 (y = 10–30 wt.%) were investigated as cathode materials for intermediate-temperature solid oxide fuel cells. The chemical compatibility, cation interdiffusion, thermal expansion and dc conductivity were studied. As a result, strong interdiffusion of Pr and Sm was found between PrBaCo2O6−δ and Ce0.8Sm0.2O1.9. This leads to only insignificantly decreasing thermal expansion coefficient of composite with increasing fraction of Ce0.8Sm0.2O1.9 and, thus, mixing PrBaCo2O6−δ with Ce0.8Sm0.2O1.9 does not improve thermal expansion behavior of the cathode material. Moreover, formation of poorly-conducting BaCeO3, caused by chemical interaction between the double perovskite and doped ceria, was shown to lead to pronounced drop in the electrical conductivity of the composite cathode material with increasing Ce0.8Sm0.2O1.9 content.

Structural, electrical and electrochemical characteristics of La0.1Sr0.9Co1−xNbxO3−δ as a cathode material for intermediate temperature solid oxide fuel cells

RSC Advances ◽  
2014 ◽  
Vol 4 (36) ◽  
pp. 18710-18717 ◽  
Author(s):  
Seonyoung Yoo ◽  
Jiyoun Kim ◽  
Seung Yoon Song ◽  
Dong Woo Lee ◽  
Jeeyoung Shin ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Structural Stability ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Electrochemical Characteristics ◽  
Oxide Fuel ◽  
Nb Doping

Nb doping significantly improves the structural stability and electrochemical performance of La0.1Sr0.9Co1−xNbxO3−δ.

Synthesis and thermal expansion property of (Ba0.5Sr0.5)0.9Bi0.1Co0.8Fe0.2O3−δ cathode materials for IT-SOFCs

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51653-51657
Author(s):  
Dechuan Li ◽  
Guangping Zhu ◽  
Yong-xing Zhang ◽  
Yijun Yang ◽  
Changbao Han
Keyword(s):  
Thermal Expansion ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Cathode Materials ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Thermal Expansion Property ◽  
Expansion Property

Perovskite cathode material, (Ba0.5Sr0.5)0.9Bi0.1Co0.8Fe0.2O3−δ (BSBCF-0.1), was synthesized by a combined citrate–EDTA complexing method for intermediate temperature solid oxide fuel cells.

(Bi0.15La0.27Sr0.53)(Co0.25Fe0.75)O3-δ perovskite: A novel cathode material for intermediate temperature solid oxide fuel cells

2016 ◽  
Vol 334 ◽  
pp. 137-145 ◽  
Author(s):  
Deni S. Khaerudini ◽  
Guoqing Guan ◽  
Peng Zhang ◽  
Pairuzha Xiaoketi ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel
Sign in / Sign up

Export Citation Format

Share Document