Publication: Electrochemical performance assessment of low-temperature solid oxide fuel cell with YSZ-based and SDC-based electrolytes
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Issued Date
2018
Resource Type
File Type
application/pdf
ISSN
3603199
Other identifier(s)
2-s2.0-85035335791
Rights Holder(s)
Scopus
Bibliographic Citation
International Journal of Hydrogen Energy. Vol 43, No.2 (2018), p.921-931
Suggested Citation
Saebea D., Authayanun S., Patcharavorachot Y., Chatrattanawet N., Arpornwichanop A. Electrochemical performance assessment of low-temperature solid oxide fuel cell with YSZ-based and SDC-based electrolytes. International Journal of Hydrogen Energy. Vol 43, No.2 (2018), p.921-931. doi:10.1016/j.ijhydene.2017.09.173 Retrieved from: https://hdl.handle.net/20.500.14740/3919
Abstract
In this work, solid oxide fuel cells (SOFCs) based on different electrolytes, i.e., the yttria-stabilized zirconia (YSZ) and the samaria-doped ceria (SDC), were investigated to study their performances at low-temperature operation. The predicted performance of both SOFCs was validated with the experimental results. The verified models were implemented to study the impact of operating conditions, i.e., cell temperature, pressure, thicknesses of cathode, anode, and electrolyte, on their performances. The decrease in the operating temperature from intermediate range (800–900 °C) to low range (550–650 °C) has a considerable effect on the performance of the YSZ-based SOFC as conventional type, which dropped from 0.67–1.40 W/cm2 to 0.027–0.13 W/cm2. Under the low operating temperature range, the performance of SDC-based SOFC was superior to that of the YSZ-based SOFC, due to the lower ohmic loss. Nevertheless, the SDC-based SOFC has higher concentration overpotentials than the YSZ-based SOFC. The concentration overpotentials of the SDC-based SOFC can be reduced by the thinner anode and cathode thicknesses. In addition, the SDC-based SOFC at low operating temperature with the pressurized operation could significantly improve its power density, about 20% at 2 bar, which was close to that of YSZ-based SOFC at intermediate temperature of 800 °C. © 2017 Hydrogen Energy Publications LLC
Subject(s)
Anodes
Cathodes
Cerium compounds
Electrodes
Electrolytes
Fuel cells
Low temperature engineering
Low temperature operations
Solid oxide fuel cells (SOFC)
Temperature
Yttria stabilized zirconia
Zirconia
Electrochemical performance
Low temperature solid oxide fuel cells
Low temperatures
Over potential
Performance analysis
Samaria doped cerias (SDC)
Solid oxide fuel cells (SOFCs)
Yttria-stabilized zirconias (YSZ)
Solid electrolytes
Cathodes
Cerium compounds
Electrodes
Electrolytes
Fuel cells
Low temperature engineering
Low temperature operations
Solid oxide fuel cells (SOFC)
Temperature
Yttria stabilized zirconia
Zirconia
Electrochemical performance
Low temperature solid oxide fuel cells
Low temperatures
Over potential
Performance analysis
Samaria doped cerias (SDC)
Solid oxide fuel cells (SOFCs)
Yttria-stabilized zirconias (YSZ)
Solid electrolytes