Performance enhancement of thin film LSCF cathodes by gold current collecting layer

Wonjong Yu; Yeageun Lee; Yoon Ho Lee; Gu Young Cho; Taehyun Park; Waqas Hassan Tanveer; Yusung Kim; Suk Won Cha

doi:10.1007/s40684-016-0024-4

Performance enhancement of thin film LSCF cathodes by gold current collecting layer

Wonjong Yu
, Yeageun Lee
, Yoon Ho Lee
, Gu Young Cho
, Taehyun Park
, Waqas Hassan Tanveer
, Yusung Kim
, Suk Won Cha

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

25 Citations (Scopus)

Abstract

Performance improvement of a thin film lanthanum strontium cobalt iron oxide (La_0.6Sr_0.4Co_0.8Fe_0.2O_1-δ, LSCF) cathode deposited by pulsed laser deposition (PLD) was achieved by utilizing a sputtered gold (Au) film as a current collecting layer. To improve low inplane electric conductivity of the porous LSCF film due to its columnar structure, fabrication of the well-connected and porous current collector is applied by sputtering. The effects of the Au current collecting layer for solid oxide fuel cells (SOFCs) with the LSCF cathode are electrochemically characterized. The cell without the current collecting layer shows 14 Ω·cm² of ohmic resistance, while the cell with the current collecting layer exhibits 5.5 Ω·cm² of ohmic resistance at 550°C. In addition, the cell with the Au layer shows almost four times higher peak power density than the cell without the Au layer. Therefore, the results suggest that the sputtered Au current collecting layer enables fabrication of porous LSCF cathode with enhanced electric conductivity and improves the performance of the fuel cell.

Original language	English
Pages (from-to)	185-188
Number of pages	4
Journal	International Journal of Precision Engineering and Manufacturing - Green Technology
Volume	3
Issue number	2
DOIs	https://doi.org/10.1007/s40684-016-0024-4
Publication status	Published - 1 Apr 2016

Bibliographical note

Publisher Copyright:
© 2016 Korean Society for Precision Engineering.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure

Keywords

Columnar structure
In-Plane conductivity
Lanthanum strontium cobalt ferrite
Pulsed laser deposition
Solid oxide fuel cell
Sputtering

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10.1007/s40684-016-0024-4

Cite this

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title = "Performance enhancement of thin film LSCF cathodes by gold current collecting layer",

abstract = "Performance improvement of a thin film lanthanum strontium cobalt iron oxide (La0.6Sr0.4Co0.8Fe0.2O1-δ, LSCF) cathode deposited by pulsed laser deposition (PLD) was achieved by utilizing a sputtered gold (Au) film as a current collecting layer. To improve low inplane electric conductivity of the porous LSCF film due to its columnar structure, fabrication of the well-connected and porous current collector is applied by sputtering. The effects of the Au current collecting layer for solid oxide fuel cells (SOFCs) with the LSCF cathode are electrochemically characterized. The cell without the current collecting layer shows 14 Ω·cm2 of ohmic resistance, while the cell with the current collecting layer exhibits 5.5 Ω·cm2 of ohmic resistance at 550°C. In addition, the cell with the Au layer shows almost four times higher peak power density than the cell without the Au layer. Therefore, the results suggest that the sputtered Au current collecting layer enables fabrication of porous LSCF cathode with enhanced electric conductivity and improves the performance of the fuel cell.",

keywords = "Columnar structure, In-Plane conductivity, Lanthanum strontium cobalt ferrite, Pulsed laser deposition, Solid oxide fuel cell, Sputtering",

author = "Wonjong Yu and Yeageun Lee and Lee, \{Yoon Ho\} and Cho, \{Gu Young\} and Taehyun Park and Tanveer, \{Waqas Hassan\} and Yusung Kim and Cha, \{Suk Won\}",

note = "Publisher Copyright: {\textcopyright} 2016 Korean Society for Precision Engineering.",

year = "2016",

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doi = "10.1007/s40684-016-0024-4",

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T1 - Performance enhancement of thin film LSCF cathodes by gold current collecting layer

AU - Yu, Wonjong

AU - Lee, Yeageun

AU - Lee, Yoon Ho

AU - Cho, Gu Young

AU - Park, Taehyun

AU - Tanveer, Waqas Hassan

AU - Kim, Yusung

AU - Cha, Suk Won

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Performance improvement of a thin film lanthanum strontium cobalt iron oxide (La0.6Sr0.4Co0.8Fe0.2O1-δ, LSCF) cathode deposited by pulsed laser deposition (PLD) was achieved by utilizing a sputtered gold (Au) film as a current collecting layer. To improve low inplane electric conductivity of the porous LSCF film due to its columnar structure, fabrication of the well-connected and porous current collector is applied by sputtering. The effects of the Au current collecting layer for solid oxide fuel cells (SOFCs) with the LSCF cathode are electrochemically characterized. The cell without the current collecting layer shows 14 Ω·cm2 of ohmic resistance, while the cell with the current collecting layer exhibits 5.5 Ω·cm2 of ohmic resistance at 550°C. In addition, the cell with the Au layer shows almost four times higher peak power density than the cell without the Au layer. Therefore, the results suggest that the sputtered Au current collecting layer enables fabrication of porous LSCF cathode with enhanced electric conductivity and improves the performance of the fuel cell.

AB - Performance improvement of a thin film lanthanum strontium cobalt iron oxide (La0.6Sr0.4Co0.8Fe0.2O1-δ, LSCF) cathode deposited by pulsed laser deposition (PLD) was achieved by utilizing a sputtered gold (Au) film as a current collecting layer. To improve low inplane electric conductivity of the porous LSCF film due to its columnar structure, fabrication of the well-connected and porous current collector is applied by sputtering. The effects of the Au current collecting layer for solid oxide fuel cells (SOFCs) with the LSCF cathode are electrochemically characterized. The cell without the current collecting layer shows 14 Ω·cm2 of ohmic resistance, while the cell with the current collecting layer exhibits 5.5 Ω·cm2 of ohmic resistance at 550°C. In addition, the cell with the Au layer shows almost four times higher peak power density than the cell without the Au layer. Therefore, the results suggest that the sputtered Au current collecting layer enables fabrication of porous LSCF cathode with enhanced electric conductivity and improves the performance of the fuel cell.

KW - Columnar structure

KW - In-Plane conductivity

KW - Lanthanum strontium cobalt ferrite

KW - Pulsed laser deposition

KW - Solid oxide fuel cell

KW - Sputtering

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JF - International Journal of Precision Engineering and Manufacturing - Green Technology

IS - 2

ER -

Performance enhancement of thin film LSCF cathodes by gold current collecting layer

Abstract

Bibliographical note

UN SDGs

Keywords

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