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 journalpeer-review

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Author(s)

  • Peng Xiao
  • Xiaoming Ge
  • Lan Zhang
  • Jong-Min Lee
  • Jing-Yuan Wang

Detail(s)

Original languageEnglish
Pages (from-to)18349-18356
Journal / PublicationInternational Journal of Hydrogen Energy
Volume37
Issue number23
Publication statusPublished - Dec 2012
Externally publishedYes

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

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

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.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review