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 language | English |
|---|---|
| Pages (from-to) | 356-360 |
| Number of pages | 5 |
| Journal | Electrochimica Acta |
| Volume | 108 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Electrochemistry
Cite this
}
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 journal › Article
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.
UR - http://www.scopus.com/inward/record.url?scp=84884278535&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884278535&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2013.06.091
DO - 10.1016/j.electacta.2013.06.091
M3 - Article
AN - SCOPUS:84884278535
VL - 108
SP - 356
EP - 360
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -