TY - JOUR
T1 - Performance variation with SDC buffer layer thickness
AU - Milcarek, Ryan J.
AU - Wang, Kang
AU - Falkenstein-Smith, Ryan L.
AU - Ahn, Jeongmin
N1 - Funding Information:
This work was supported by the National Science Foundation under grant CBET-1403405 and an award from Empire State Development's Division of Science, Technology and Innovation (NYSTAR) through the Syracuse Center of Excellence, under award number # C120183 . This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. 1247399 .
Publisher Copyright:
© 2016 Hydrogen Energy Publications LLC.
PY - 2016/6/15
Y1 - 2016/6/15
N2 - The performance of anode-supported solid oxide fuel cells was investigated as the SDC buffer layer thickness was varied between ∼0.4 μm and ∼2.3 μm. The thickness of the buffer layer has a significant effect with the peak performance varying in magnitude by a factor of almost three. A peak power density of 1106 mW cm-2 was achieved at 800°C and an optimal SDC buffer layer thickness of ∼1.5 μm. The performance variation was complex due to a balance between ohmic and polarization losses, triple phase boundary area, pin holes and interfacial reactions between the BSCF + SDC cathode, SDC buffer layer, and YSZ electrolyte. Understanding this variation is essential in order to compare two fuel cells having a different porous buffer layer thickness.
AB - The performance of anode-supported solid oxide fuel cells was investigated as the SDC buffer layer thickness was varied between ∼0.4 μm and ∼2.3 μm. The thickness of the buffer layer has a significant effect with the peak performance varying in magnitude by a factor of almost three. A peak power density of 1106 mW cm-2 was achieved at 800°C and an optimal SDC buffer layer thickness of ∼1.5 μm. The performance variation was complex due to a balance between ohmic and polarization losses, triple phase boundary area, pin holes and interfacial reactions between the BSCF + SDC cathode, SDC buffer layer, and YSZ electrolyte. Understanding this variation is essential in order to compare two fuel cells having a different porous buffer layer thickness.
KW - Anode-supported solid oxide fuel cell
KW - Buffer layer
KW - Interlayer
KW - Intermediate temperature solid oxide fuel cell
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U2 - 10.1016/j.ijhydene.2016.04.113
DO - 10.1016/j.ijhydene.2016.04.113
M3 - Article
AN - SCOPUS:84965019874
SN - 0360-3199
VL - 41
SP - 9500
EP - 9506
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 22
ER -