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Microarchitectured solid oxide fuel cells with improved energy efficiency (Part II): Fabrication and characterization
- Source :
- Journal of Power Sources. 293:883-891
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- Part I of this study presented a computational model-based approach for enhancing the performance of solid oxide fuel cells (SOFCs) with designed microarchitecture. The performance of such SOFCs was predicted to greatly improve through a systematic computational design and optimization approach. Part II here proves through experimental fabrication and characterization that microarchitectured SOFC performance can be improved as predicted by the model. A real and specific SOFC is chosen, fabricated and characterized to demonstrate the proof-of-concept. Fabrication techniques using sintering and laser ablation are demonstrated. Pore size and geometry are characterized by interferometry-based surface profilometry and scanning electron microscopy. SOFC button cell performance testing including power output performance and electrochemical impedance spectroscopy are performed. The results show that SOFC performance in a microarchitectured cell can be improved over a baseline button cell by 9–17% in current density and by 7–19% in power density.
- Subjects :
- Laser ablation
Materials science
Fabrication
Renewable Energy, Sustainability and the Environment
business.industry
Scanning electron microscope
Oxide
Analytical chemistry
Energy Engineering and Power Technology
Sintering
Dielectric spectroscopy
chemistry.chemical_compound
chemistry
Optoelectronics
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
business
Current density
Power density
Subjects
Details
- ISSN :
- 03787753
- Volume :
- 293
- Database :
- OpenAIRE
- Journal :
- Journal of Power Sources
- Accession number :
- edsair.doi...........fcd37b7910bd4b6d8f237c37dc2c548a