Performance evaluation of anode-supported Gd 0.1 Ce 0.9 O 1.95 cell with electrospun La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 cathode

Jin Goo Lee, Chan Min Lee, Myeong Geun Park, Sang Jin Jung, Yong-Gun Shul

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A cathode performance is considered as a key factor to enhance the power efficiency of intermediate temperature solid oxide fuel cells (IT-SOFCs). In order to improve the cathode performance, La 0.6 GSr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 (LSCF-GDC) cathode is fabricated by electrospinning method. The three-dimensional fiber network cathode has high porosity, continuous pathway for charge transfer and increased triple phase boundary sites (TPB). The electrospun cathode is applied to Ni-GDC anode-supported Gd 0.1 Ce 0.9 O 1.95 cell. The electrical properties of the electrospun LSCF-GDC cathode are compared with the conventional LSCF-GDC powder cathode. The polarization resistance and maximum power density of the cell with the electrospun cathode are about 0.08 Ω cm 2 and 0.85 Wcm -2 at 650 °C, respectively. The power density of the cell with the electrospun cathode is approximately two times higher than o.45Wcm -2 (at 650°C) of the cell with the conventional LSCF-GDC cathode. This result demonstrates that the application of the electrospun LSCF-GDC cathode can be a promising method for enhancing the electrical performance of an anode-supported GDC cell at intermediate temperatures.

Original languageEnglish
Pages (from-to)356-360
Number of pages5
JournalElectrochimica Acta
Volume108
DOIs
Publication statusPublished - 2013 Jan 1

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Anodes
Cathodes
Electrospinning
Phase boundaries
Solid oxide fuel cells (SOFC)
Powders
Charge transfer
Electric properties
Porosity
Polarization
Temperature
Fibers

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

@article{2742ecbb9dfe4da7b327383a76a94624,
title = "Performance evaluation of anode-supported Gd 0.1 Ce 0.9 O 1.95 cell with electrospun La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 cathode",
abstract = "A cathode performance is considered as a key factor to enhance the power efficiency of intermediate temperature solid oxide fuel cells (IT-SOFCs). In order to improve the cathode performance, La 0.6 GSr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 (LSCF-GDC) cathode is fabricated by electrospinning method. The three-dimensional fiber network cathode has high porosity, continuous pathway for charge transfer and increased triple phase boundary sites (TPB). The electrospun cathode is applied to Ni-GDC anode-supported Gd 0.1 Ce 0.9 O 1.95 cell. The electrical properties of the electrospun LSCF-GDC cathode are compared with the conventional LSCF-GDC powder cathode. The polarization resistance and maximum power density of the cell with the electrospun cathode are about 0.08 Ω cm 2 and 0.85 Wcm -2 at 650 °C, respectively. The power density of the cell with the electrospun cathode is approximately two times higher than o.45Wcm -2 (at 650°C) of the cell with the conventional LSCF-GDC cathode. This result demonstrates that the application of the electrospun LSCF-GDC cathode can be a promising method for enhancing the electrical performance of an anode-supported GDC cell at intermediate temperatures.",
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Performance evaluation of anode-supported Gd 0.1 Ce 0.9 O 1.95 cell with electrospun La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 cathode . / Lee, Jin Goo; Lee, Chan Min; Park, Myeong Geun; Jung, Sang Jin; Shul, Yong-Gun.

In: Electrochimica Acta, Vol. 108, 01.01.2013, p. 356-360.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Performance evaluation of anode-supported Gd 0.1 Ce 0.9 O 1.95 cell with electrospun La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 cathode

AU - Lee, Jin Goo

AU - Lee, Chan Min

AU - Park, Myeong Geun

AU - Jung, Sang Jin

AU - Shul, Yong-Gun

PY - 2013/1/1

Y1 - 2013/1/1

N2 - A cathode performance is considered as a key factor to enhance the power efficiency of intermediate temperature solid oxide fuel cells (IT-SOFCs). In order to improve the cathode performance, La 0.6 GSr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 (LSCF-GDC) cathode is fabricated by electrospinning method. The three-dimensional fiber network cathode has high porosity, continuous pathway for charge transfer and increased triple phase boundary sites (TPB). The electrospun cathode is applied to Ni-GDC anode-supported Gd 0.1 Ce 0.9 O 1.95 cell. The electrical properties of the electrospun LSCF-GDC cathode are compared with the conventional LSCF-GDC powder cathode. The polarization resistance and maximum power density of the cell with the electrospun cathode are about 0.08 Ω cm 2 and 0.85 Wcm -2 at 650 °C, respectively. The power density of the cell with the electrospun cathode is approximately two times higher than o.45Wcm -2 (at 650°C) of the cell with the conventional LSCF-GDC cathode. This result demonstrates that the application of the electrospun LSCF-GDC cathode can be a promising method for enhancing the electrical performance of an anode-supported GDC cell at intermediate temperatures.

AB - A cathode performance is considered as a key factor to enhance the power efficiency of intermediate temperature solid oxide fuel cells (IT-SOFCs). In order to improve the cathode performance, La 0.6 GSr 0.4 Co 0.2 Fe 0.8 O 3-δ -Gd 0.1 Ce 0.9 O 1.95 (LSCF-GDC) cathode is fabricated by electrospinning method. The three-dimensional fiber network cathode has high porosity, continuous pathway for charge transfer and increased triple phase boundary sites (TPB). The electrospun cathode is applied to Ni-GDC anode-supported Gd 0.1 Ce 0.9 O 1.95 cell. The electrical properties of the electrospun LSCF-GDC cathode are compared with the conventional LSCF-GDC powder cathode. The polarization resistance and maximum power density of the cell with the electrospun cathode are about 0.08 Ω cm 2 and 0.85 Wcm -2 at 650 °C, respectively. The power density of the cell with the electrospun cathode is approximately two times higher than o.45Wcm -2 (at 650°C) of the cell with the conventional LSCF-GDC cathode. This result demonstrates that the application of the electrospun LSCF-GDC cathode can be a promising method for enhancing the electrical performance of an anode-supported GDC cell at intermediate temperatures.

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