Functionally graded doped lanthanum cobalt ferrite and ceria-based composite interlayers for advancing the performance stability in solid oxide fuel cell

2016 ◽  
Vol 328 ◽  
pp. 15-27 ◽  
Author(s):  
Koyel Banerjee Ghosh ◽  
Jayanta Mukhopadhyay ◽  
Rajendra N. Basu
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Cobalt Ferrite ◽  
Functionally Graded ◽  
Solid Oxide ◽  
Oxide Fuel

Mass Transfer in Functionally Graded Solid Oxide Fuel Cell Electrodes

2005 ◽  
Author(s):  
Eric S. Greene ◽  
Wilson K. S. Chiu
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Functionally Graded ◽  
Porous Electrodes ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Operational Parameters ◽  
Internal Reforming ◽  
Ohmic Losses ◽  
Physical Phenomena

A 1-D computational model is presented in which performance of a solid oxide fuel cell with functionally graded electrodes can be predicted. The model calculates operational cell voltages with varying geometric and operational parameters. The model accounts for losses from mass transport through the porous electrodes, ohmic losses from current flow through the electrodes and electrolyte, and activation polarization. It also includes a model for the full or partial internal reforming of methane. The model was applied to investigate the effect of electrode porosity distribution on performance. Specifically the physical phenomena that occur when the electrode is designed with a change in microstructure along its thickness is studied. The general trends that occur are investigated to find the arrangement for which the minimal polarization occurs. Both diluted hydrogen fuel and partially reformed methane streams are investigated. It is concluded that performance benefits are seen when the electrodes are given an increase in porosity near the electrolyte interface.

Functionally graded and homogeneous composites of La2NiO4+δ and Lan+1NinO3n+1 (n = 2 and 3) solid oxide fuel cell cathodes

2017 ◽  
Vol 5 (42) ◽  
pp. 22277-22287 ◽  
Author(s):  
R. K. Sharma ◽  
E. Djurado
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Functionally Graded ◽  
Solid Oxide ◽  
Electrical Performance ◽  
Oxide Fuel ◽  
Functionally Graded Composite ◽  
Fuel Cell Cathodes ◽  
Composite Cathodes ◽  
Cell Cathodes

Functionally graded composite cathodes based on Ruddlesden–Popper phases show better electrical performance than homogeneous ones.

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