A methane-fueled SOFC based on a thin BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3−δ electrolyte film and a LaNi 0.6 Co 0.4 O 3 anode functional layer
A methane-fueled solid oxide fuel cell (SOFC) operating at 500–650 °C was fabricated using a thin BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3−δ (BZCYYb) electrolyte film and a LaNi 0.6 Co 0.4 O 3 anode functional layer. Thin BZCYYb electrolyte films (thickness = 3 μm) and NiO–BZCYYb anode supports were prepare...
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Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 4; no. 14; pp. 5102 - 5106 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
2016
|
Online Access | Get full text |
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Summary: | A methane-fueled solid oxide fuel cell (SOFC) operating at 500–650 °C was fabricated using a thin BaZr
0.1
Ce
0.7
Y
0.1
Yb
0.1
O
3−δ
(BZCYYb) electrolyte film and a LaNi
0.6
Co
0.4
O
3
anode functional layer. Thin BZCYYb electrolyte films (thickness = 3 μm) and NiO–BZCYYb anode supports were prepared by electron beam vapor deposition. A LaNi
0.6
Co
0.4
O
3
catalyst layer was coated onto the anode support. The BZCYYb electrolyte film was characterized by X-ray diffraction and scanning electron microscopy. Current–voltage (
I
–
V
) curves and impedance spectra were measured to characterize the electrochemical performance of the cell. The NiO–BZCYYb anode exhibited a high coking resistance, and the cell was stable for 200 h when operated under methane at 550 °C. The presence of the LaNi
0.6
Co
0.4
O
3
functional catalyst significantly enhanced the cell performance. The maximum power densities of the prepared cells were 0.98, 0.65, 0.51 and 0.40 W cm
−2
at 650, 600, 550 and 500 °C, respectively, under methane fuel. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/C5TA10689C |