H 2 and CH 4 oxidation on Gd 0.2Ce 0.8O 1.9 infiltrated SrMoO 3-yttria-stabilized zirconia anode for solid oxide fuel cells
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 18349-18356 |
Journal / Publication | International Journal of Hydrogen Energy |
Volume | 37 |
Issue number | 23 |
Publication status | Published - Dec 2012 |
Externally published | Yes |
Link(s)
Abstract
Strontium molybdate (SrMoO 3) as an electronic conductor was incorporated with yttria-stabilized zirconia (YSZ) to form an anode scaffold for solid oxide fuel cells. Gd 0.2Ce 0.8O 1.9 (GDC) nanoparticles were introduced by wet impregnation to complete the Ni-free GDC infiltrated SrMoO 3-YSZ anode fabrication. The effects of SrMoO 3 on the electrode conductivity and GDC infiltration on the catalytic activity were examined. A pronounced performance improvement was observed both on wet H 2 and CH 4 oxidation for the 56 wt.% GDC infiltrated SrMoO 3-YSZ. In particular, the polarization resistance decreased from 8 Ω cm 2 to 0.5 Ω cm 2 under wet H 2 (3% H 2O) at 800 °C with the introduction of GDC. Under wet CH 4 at 900 °C, a maximum power density of 160 mW cm -2 was obtained and no carbon deposition was observed on the anode. It was found that the addition of H 2O in the anode caused an increase of electrode ohmic resistance and a decrease of open circuit voltage. Redox cycling stability was investigated and only a slight drop in cell performance was observed after 5 cycles. These results suggest that GDC infiltrated SrMoO 3-YSZ is a promising anode material for solid oxide fuel cells. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Research Area(s)
- Gadolinia doped ceria, Methane oxidation, Nickel-free anode, Solid oxide fuel cells, Strontium molybdate, Wet impregnation
Bibliographic Note
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Citation Format(s)
H 2 and CH 4 oxidation on Gd 0.2Ce 0.8O 1.9 infiltrated SrMoO 3-yttria-stabilized zirconia anode for solid oxide fuel cells. / Xiao, Peng; Ge, Xiaoming; Zhang, Lan et al.
In: International Journal of Hydrogen Energy, Vol. 37, No. 23, 12.2012, p. 18349-18356.
In: International Journal of Hydrogen Energy, Vol. 37, No. 23, 12.2012, p. 18349-18356.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review