Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12935
ชื่อเรื่อง: Electrochemical performance assessment of low-temperature solid oxide fuel cell with YSZ-based and SDC-based electrolytes
ผู้แต่ง: Saebea D.
Authayanun S.
Patcharavorachot Y.
Chatrattanawet N.
Arpornwichanop A.
Keywords: 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
วันที่เผยแพร่: 2018
บทคัดย่อ: 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
URI: https://ir.swu.ac.th/jspui/handle/123456789/12935
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035335791&doi=10.1016%2fj.ijhydene.2017.09.173&partnerID=40&md5=964d81401a9c382ec7c352e9394af027
ISSN: 3603199
Appears in Collections:Scopus 1983-2021

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