Performance variation with SDC buffer layer thickness

Ryan J. Milcarek; Kang Wang; Ryan L. Falkenstein-Smith; Jeongmin Ahn

doi:10.1016/j.ijhydene.2016.04.113

Performance variation with SDC buffer layer thickness

Ryan J. Milcarek, Kang Wang, Ryan L. Falkenstein-Smith, Jeongmin Ahn

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	9500-9506
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	41
Issue number	22
DOIs	https://doi.org/10.1016/j.ijhydene.2016.04.113
State	Published - Jun 15 2016
Externally published	Yes

Keywords

Anode-supported solid oxide fuel cell
Buffer layer
Interlayer
Intermediate temperature solid oxide fuel cell

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

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10.1016/j.ijhydene.2016.04.113

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title = "Performance variation with SDC buffer layer thickness",

abstract = "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.",

keywords = "Anode-supported solid oxide fuel cell, Buffer layer, Interlayer, Intermediate temperature solid oxide fuel cell",

author = "Milcarek, {Ryan J.} and Kang Wang and Falkenstein-Smith, {Ryan L.} and Jeongmin Ahn",

note = "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: {\textcopyright} 2016 Hydrogen Energy Publications LLC.",

year = "2016",

month = jun,

day = "15",

doi = "10.1016/j.ijhydene.2016.04.113",

language = "English (US)",

volume = "41",

pages = "9500--9506",

journal = "International Journal of Hydrogen Energy",

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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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EP - 9506

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 22

ER -

Performance variation with SDC buffer layer thickness

Abstract

Keywords

ASJC Scopus subject areas

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