scholarly journals Evaluating microstructure evolution in an SOFC electrode using digital volume correlation

2018 ◽  
Vol 2 (12) ◽  
pp. 2625-2635 ◽  
Author(s):  
T. M. M. Heenan ◽  
X. Lu ◽  
D. P. Finegan ◽  
J. Robinson ◽  
F. Iacoviello ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Thermal Cycling ◽  
Microstructure Evolution ◽  
Solid Oxide ◽  
Digital Volume Correlation ◽  
Oxide Fuel ◽  
Degradation Mechanisms ◽  
Start Up

Degradation mechanisms that occur within solid oxide fuel cells (SOFC) during thermal cycling limit operational start-up times and cell lifetime, and must therefore be better understood and mitigated.

Degradation Mechanisms of Solid Oxide Fuel Cells under Various Thermal Cycling Conditions

2021 ◽  
Author(s):  
Ji-Seop Shin ◽  
Muhammad Saqib ◽  
Minkyeong Jo ◽  
Kwangho Park ◽  
Kwang Min Park ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Thermal Cycling ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Degradation Mechanisms

scholarly journals Computational engineering of the oxygen electrode-electrolyte interface in solid oxide fuel cells

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kaiming Cheng ◽  
Huixia Xu ◽  
Lijun Zhang ◽  
Jixue Zhou ◽  
Xitao Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Microstructure Evolution ◽  
Oxygen Electrode ◽  
Solid Oxide ◽  
Ohmic Loss ◽  
Oxide Fuel ◽  
Computational Engineering ◽  
Electrolyte Interface

AbstractThe Ce0.8Gd0.2O2−δ (CGO) interlayer is commonly applied in solid oxide fuel cells (SOFCs) to prevent chemical reactions between the (La1−xSrx)(Co1−yFey)O3−δ (LSCF) oxygen electrode and the Y2O3-stabilized ZrO2 (YSZ) electrolyte. However, formation of the YSZ–CGO solid solution with low ionic conductivity and the SrZrO3 (SZO) insulating phase still happens during cell production and long-term operation, causing poor performance and degradation. Unlike many experimental investigations exploring these phenomena, consistent and quantitative computational modeling of the microstructure evolution at the oxygen electrode–electrolyte interface is scarce. We combine thermodynamic, 1D kinetic, and 3D phase-field modeling to computationally reproduce the element redistribution, microstructure evolution, and corresponding ohmic loss of this interface. The influences of different ceramic processing techniques for the CGO interlayer, i.e., screen printing and physical laser deposition (PLD), and of different processing and long-term operating parameters are explored, representing a successful case of quantitative computational engineering of the oxygen electrode–electrolyte interface in SOFCs.

Fabrication, electrochemical characterization and thermal cycling of anode supported microtubular solid oxide fuel cells

2009 ◽  
Vol 192 (1) ◽  
pp. 120-125 ◽  
Author(s):  
R. Campana ◽  
R.I. Merino ◽  
A. Larrea ◽  
I. Villarreal ◽  
V.M. Orera
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Thermal Cycling ◽  
Electrochemical Characterization ◽  
Solid Oxide ◽  
Oxide Fuel

Understanding longitudinal degradation mechanisms of large-area micro-tubular solid oxide fuel cells

2018 ◽  
Vol 265 ◽  
pp. 232-243 ◽  
Author(s):  
Aneta Slodczyk ◽  
Marc Torrell ◽  
Aitor Hornés ◽  
Alex Morata ◽  
Kevin Kendall ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Degradation Mechanisms ◽  
Large Area

Effects of Thermal Cycling on the Formation of Oxide Scale of Fe-Cr Alloy Interconnects for Solid Oxide Fuel Cells

2011 ◽  
Vol 8 (6) ◽  
pp. 1374-1381 ◽  
Author(s):  
Teruhisa Horita ◽  
Masashi Yoshinaga ◽  
Haruo Kishimoto ◽  
Katsuhiko Yamaji ◽  
Manuel E. Brito ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Thermal Cycling ◽  
Oxide Scale ◽  
Solid Oxide ◽  
Oxide Fuel
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