Multiscale model for solid oxide fuel cell with electrode containing mixed conducting material

AIChE Journal ◽  
2015 ◽  
Vol 61 (11) ◽  
pp. 3786-3803 ◽  
Author(s):  
Daifen Chen ◽  
Hanzhi Wang ◽  
Shundong Zhang ◽  
Moses O. Tade ◽  
Zongping Shao ◽  
...  
Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 253 ◽  
Author(s):  
Marcin Mozdzierz ◽  
Katarzyna Berent ◽  
Shinji Kimijima ◽  
Janusz S. Szmyd ◽  
Grzegorz Brus

The models of solid oxide fuel cells (SOFCs), which are available in the open literature,may be categorized into two non-overlapping groups: microscale or macroscale. Recent progressin computational power makes it possible to formulate a model which combines both approaches,the so-called multiscale model. The novelty of this modeling approach lies in the combination ofthe microscale description of the transport phenomena and electrochemical reactions’ with thecomputational fluid dynamics model of the heat and mass transfer in an SOFC. In this work,the mathematical model of a solid oxide fuel cell which takes into account the averaged microstructureparameters of electrodes is developed and tested. To gain experimental data, which are used toconfirm the proposed model, the electrochemical tests and the direct observation of the microstructurewith the use of the focused ion beam combined with the scanning electron microscope technique(FIB-SEM) were conducted. The numerical results are compared with the experimental data fromthe short stack examination and a fair agreement is found, which shows that the proposed modelcan predict the cell behavior accurately. The mechanism of the power generation inside the SOFC isdiscussed and it is found that the current is produced primarily near the electrolyte–electrode interface.Simulations with an artificially changed microstructure does not lead to the correct prediction of thecell characteristics, which indicates that the microstructure is a crucial factor in the solid oxide fuelcell modeling.


2016 ◽  
Vol 4 (40) ◽  
pp. 15390-15399 ◽  
Author(s):  
Julia Lyagaeva ◽  
Nikolay Danilov ◽  
Gennady Vdovin ◽  
Junfu Bu ◽  
Dmitry Medvedev ◽  
...  

The present work describes the features of the synthesis and physicochemical and electrical properties of a new Dy-doped BaCeO3–BaZrO3 proton-conducting electrolyte as well as its application in a reversible solid oxide fuel cell.


2008 ◽  
Vol 128 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Yoshitaka Inui ◽  
Tadashi Tanaka ◽  
Tomoyoshi Kanno

2015 ◽  
Vol 30 (12) ◽  
pp. 1291
Author(s):  
ZHANG Yu-Yue ◽  
LIN Jie ◽  
MIAO Guo-Shuan ◽  
GAO Jian-Feng ◽  
CHEN Chu-Sheng ◽  
...  

2019 ◽  
Vol 21 (18) ◽  
pp. 9407-9418 ◽  
Author(s):  
Emilia Olsson ◽  
Jonathon Cottom ◽  
Xavier Aparicio-Anglès ◽  
Nora H. de Leeuw

The effect of Co-site doping on the electronic, magnetic, and physical properties of next-generation SOFC cathode SmCoO3.


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