Effects of Anode Microstructure on Mechanical and Electrochemical Properties for Anode-Supported Microtubular Solid Oxide Fuel Cells

2013 ◽  
Vol 96 (11) ◽  
pp. 3584-3588 ◽  
Author(s):  
Hirofumi Sumi ◽  
Toshiaki Yamaguchi ◽  
Koichi Hamamoto ◽  
Toshio Suzuki ◽  
Yoshinobu Fujishiro
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Properties ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Microstructure

scholarly journals Oxygen permeation, thermal expansion behavior and electrochemical properties of LaBa0.5Sr0.5Co2O5+δ cathode for SOFCs

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14487-14495 ◽  
Author(s):  
Adi Subardi ◽  
Kun-Yu Liao ◽  
Yen-Pei Fu
Keyword(s):  
Thermal Expansion ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Properties ◽  
Double Perovskite ◽  
Oxygen Permeation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior

In this study, the double perovskite LaBa0.5Sr0.5Co2O5+δ (LBSC55) is investigated as a potential cathode for solid oxide fuel cells (SOFCs).

Microstructure, Sinterability and Electrochemical Properties of a Sm-Sr-(Co,Fe,Ni)-O Cathode System for Solid Oxide Fuel Cells

2009 ◽  
Author(s):  
Seung-Wook Baek ◽  
Joongmyeon Bae
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Properties ◽  
Electrochemical Impedance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Sofc Cathode ◽  
Low Thermal Expansion ◽  
Temperature Operating ◽  
The Relationship

Samarium (Sm) is a rare earth material that shows promise for use in cathodes of intermediate temperature-operating solid oxide fuel cells (IT-SOFCs). Perovskite-structured oxide containing Sm has very attractive electrocatalytic properties, and spinel-structured oxide generally exhibits low thermal expansion, indicating its suitability for application as a SOFC cathode. In this paper, the characteristics of the various Sm-based oxide materials (Sm-Sr-(Co,Fe,Ni)-O) deposited on Sm0.2Ce0.8O1.9 (SDC) electrolyte pellets were investigated in terms of their microstructure, sinterability and electrochemical properties. The relationship between the composition and the sintering temperature was studied and discussed. Results show that the substitution of iron (Fe) and nickel (Ni) in Co-sites affects the sinterability, adhesion to the electrolyte and electrochemical activity, such that the different sintering temperatures for these compositions should be considered. The microstructure and sinterability of the cathodes were investigated using a scanning electron microscope (SEM). Area specific resistance (ASR) values for all cathode compositions were measured using AC electrochemical impedance spectroscopy (EIS).

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