Influence of the synthesis conditions on the crystal structure and properties of GdBaCo2−xFexO5+δ oxides as air-electrodes for intermediate temperature solid oxide fuel cells

2017 ◽  
Vol 5 (24) ◽  
pp. 12550-12556 ◽  
Author(s):  
Daniel Muñoz-Gil ◽  
Domingo Pérez-Coll ◽  
Esteban Urones-Garrote ◽  
Ulises Amador ◽  
Susana García-Martín
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Crystal Structures ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Structure And Properties ◽  
Synthesis Conditions

GdBaCo2−xFexO5+δ oxides show crystal structures and ASR values dependent on the composition and synthesis atmosphere. A new modulation of the structure is found for the material with x = 0.6.

scholarly journals Crystal structure, thermal expansion and long-term behaviors of SmBaCoO5+δ as cathode for intermediate-temperature solid oxide fuel cells

2018 ◽  
Vol 215 ◽  
pp. 01026
Author(s):  
Adi Subardi ◽  
Yen-Pei Fu
Keyword(s):  
Crystal Structure ◽  
Thermal Expansion ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Polarization Resistance ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Layered Perovskite ◽  
Oxide Fuel

SmBaCo2O5+δ (SBC) was studied as cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The crystal structure, thermal expansion behavior, and electrochemical performance with long-term operation of SBC were characterized. An orthorhombic layered perovskite structure was observed in SBC cathode by a GSAS program for refinement. The average thermal expansion coefficient (TEC) is 21.6 x 10-6K-1 in the temperature range of 100oC-800oC. For long-term testing, the polarization resistance of SBC cathode increases gradually from 25.77 Ω cm2 for 2 h to 38.77 Ω cm2 for 96 h at 600°C, and an increasing-rate for polarization resistance is around 13,8% h-1. Based on the electrochemical properties, SBC cathode with mixed ionic and electronic conductor (MIEC) behavior is a potential cathode for intermediate temperature solid oxide fuel cells based on a SDC electrolyte.

Praseodymium Cuprate Thin Film Cathodes for Intermediate Temperature Solid Oxide Fuel Cells: Roles of Doping, Orientation, and Crystal Structure

2016 ◽  
Vol 8 (50) ◽  
pp. 34295-34302 ◽  
Author(s):  
Kunal Mukherjee ◽  
Yoshiaki Hayamizu ◽  
Chang Sub Kim ◽  
Liudmila M. Kolchina ◽  
Galina N. Mazo ◽  
...  
Keyword(s):  
Thin Film ◽  
Crystal Structure ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel
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