| Autor: |
Chanmin Lee, Sang Jin Jung, Yong Gun Shul, Jin Goo Lee, Myeong Geun Park |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Electrochimica Acta. 108:356-360 |
| ISSN: |
0013-4686 |
| DOI: |
10.1016/j.electacta.2013.06.091 |
| Popis: |
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 Sr 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 W cm −2 at 650 °C, respectively. The power density of the cell with the electrospun cathode is approximately two times higher than 0.45 W cm −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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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