ReaxFF Reactive Force-Field Modeling of the Triple-Phase Boundary in a Solid Oxide Fuel Cell

2014 ◽  
Vol 5 (22) ◽  
pp. 4039-4043 ◽  
Author(s):  
Boris V. Merinov ◽  
Jonathan E. Mueller ◽  
Adri C. T. van Duin ◽  
Qi An ◽  
William A. Goddard
Keyword(s):  
Fuel Cell ◽  
Force Field ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Reactive Force ◽  
Triple Phase Boundary ◽  
Field Modeling ◽  
Reaxff Reactive Force Field

Effects of Electrode Microstructure on Intermediate Temperature Solid Oxide Fuel Cell Performance

2010 ◽  
Vol 7 (5) ◽  
Author(s):  
Edward J. Naimaster ◽  
A. K. Sleiti
Keyword(s):  
Grain Size ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Pore Size ◽  
Current Density ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Triple Phase Boundary ◽  
Microstructure Parameters

In this study, the effects of electrode microstructure and electrolyte parameters on intermediate temperature solid oxide fuel cell (ITSOFC) performance were investigated using a one-dimensional solid oxide fuel cell model from the Pacific Northwest National Laboratory (PNNL). The activation overpotential was investigated through the exchange current density term, which is dependent on the cathode activation energy, the cathode porosity, and the pore size and grain size at the cathode triple phase boundary. The cathode pore size, grain size, and porosity were not integrated in the PNNL model, therefore, an analytical solution for exchange current density from Deng and Petric (2005, “Geometric Modeling of the Triple-Phase Boundary in Solid Oxide Fuel Cells,” J. Power Sources, 140, pp. 297–303) was utilized to optimize their effects on performance. Through parametric evaluation and optimization of the electrode microstructure parameters, the activation overpotential was decreased by 29% and the overall ITSOFC maximum power density was increased by almost 400% from the benchmark PNNL case. The effects and importance of electrode microstructure parameters on ITSOFC performance were defined. Optimization of such parameters will be the key in creating viable ITSOFC systems. Although this was deemed successful for this project, future research should be focused on numerically quantifying and modeling the electrode microstructure in two- and three-dimensions for more accurate results, as the electrode microstructure may be highly multidimensional in nature.

scholarly journals Calculation of contact angles at triple phase boundary in solid oxide fuel cell anode using the level set method

2014 ◽  
Vol 96 ◽  
pp. 100-107 ◽  
Author(s):  
Xiaojun Sun ◽  
Yosuke Hasegawa ◽  
Haruhiko Kohno ◽  
Zhenjun Jiao ◽  
Koji Hayakawa ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Level Set ◽  
Contact Angles ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Triple Phase Boundary ◽  
Cell Anode ◽  
Fuel Cell Anode

Contribution of Triple-Phase Boundary Reaction in Cathodic Reaction of Solid Oxide Fuel Cell

2017 ◽  
Vol 78 (1) ◽  
pp. 847-853 ◽  
Author(s):  
Yoshinobu Fujimaki ◽  
Keita Mizuno ◽  
Yuta Kimura ◽  
Takashi Nakamura ◽  
Katherine Develos- Bagarinao ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Cathodic Reaction ◽  
Oxide Fuel ◽  
Triple Phase Boundary ◽  
Boundary Reaction ◽  
Phase Boundary Reaction

Designing an optimal 3D microstructure for three-phase solid oxide fuel cell anodes with maximal active triple phase boundary length (TPBL)

2015 ◽  
Vol 40 (45) ◽  
pp. 15585-15596 ◽  
Author(s):  
Mohsen Mazrouei Sebdani ◽  
Majid Baniassadi ◽  
Jalil Jamali ◽  
Mohammad Ahadiparast ◽  
Karen Abrinia ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Triple Phase Boundary ◽  
3D Microstructure ◽  
Boundary Length ◽  
Three Phase ◽  
Fuel Cell Anodes

Local Evolution of Triple Phase Boundary in Solid Oxide Fuel Cell Stack After Long-term Operation

Fuel Cells ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 545-548 ◽  
Author(s):  
G. Brus ◽  
H. Iwai ◽  
Y. Otani ◽  
M. Saito ◽  
H. Yoshida ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Triple Phase Boundary ◽  
Fuel Cell Stack ◽  
Term Operation
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