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245	1	0	_aModeling and microstructural study of anode-supported solid oxide fuel cells: Experimental and thermodynamic analyses
490	0		_aInternational Journal of Hydrogen Energy. 54, 613-634, 2024, DOI: 10.1016/j.ijhydene.2023.08.296
520	3		_aDeveloping novel solid oxide fuel cells (SOFCs) with high stability running at low temperatures is an important objective in SOFC science. In the current paper, a comprehensive physics-based microstructure modeling using scanning electron microscope (SEM) image analysis was performed on several anode-support SOFCs operating at low temperatures with high stability. To bridge the gap in the literature regarding an accurate and realistic modeling, a new model was developed based on the variable fuel and air utilization factors and updated microstructure values (e.g., tortuosity, porosity, pore size, grain size). The model accuracy was verified by a thorough point-to-point validation for eight different cells with the configuration of Ni-YSZ (anode), YSZ (electrolyte), and GDC/PNO (cathode). Different temperatures, hydrogen, and air mass flow rates were used, for which an average error of less than 3% in the I-V curves was achieved. The microstructure of the cells, including cathode thickness (15-26 ?m), anode-support thickness (350-460 ?m), porosity (39 and 43%), grain size (1.1-1.4 ?m), and pore radius (0.9-1.1 ?m) were varied. Moreover, the effects of the critical operational and design parameters on the overpotential losses and cell performance were studied. The results show that a hydrogen flow rate of 43 sccm was ideal when the cell operated at 0.9 A/cm2 and 700 °C. Moreover, an average anode-support pore radius of 1.75 ?m resulted in the best cell performance. It was also concluded that the electrolyte thickness has a higher effect on the cell performance compared to the cathode thickness. © 2023 Hydrogen Energy Publications LLC
650	1	4	_aFUEL UTILIZATION FACTOR
650	1	4	_aMICROSTRUCTURE
650	1	4	_aMODELING
650	1	4	_aOVERPOTENTIAL LOSSES
650	1	4	_aSOLID OXIDE FUEL CELL
700	1	2	_aRazmi A.R.
700	1	2	_aSharifi S.
700	1	2	_aVafaeenezhad S.
700	1	2	_aHanifi A.R.
700	1	2	_aShahbakhti M.
856	4	0	_uhttps://drive.google.com/file/d/1TeP744rPDIkr0s_cr9Hx1okLIlTg9pCW/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta @cicy.edu.mx
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