Potentiality of cobalt-free perovskite Ba0.5Sr 0.5Fe0.9Mo0.1O3-δ as a single-phase cathode for intermediate-to-low-temperature solid oxide fuel cells

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

22 Scopus Citations
View graph of relations

Author(s)

  • Yihan Ling
  • Xiaozhen Zhang
  • Songlin Wang
  • Ling Zhao
  • Xingqin Liu
  • Bin Lin

Detail(s)

Original languageEnglish
Pages (from-to)14323-14328
Journal / PublicationInternational Journal of Hydrogen Energy
Volume38
Issue number33
Publication statusPublished - 4 Nov 2013
Externally publishedYes

Abstract

Cobalt-free perovskite Ba0.5Sr0.5Fe 0.9Mo0.1O3-δ (BSFMo) was investigated as a single-phase cathode for intermediate-to-low-temperature solid oxide fuel cells (IL-SOFCs). The X-ray diffraction (XRD) Rietveld refinement, electrical conductivity, thermogravimetric (TG) measurements, the phase reaction were investigated. The doping of high-valence Mo cations into Fe-site obviously enhanced the electrical conductivity of BSFMo sample with the maximum value of 174 S cm-1. XRD results showed that BSFMo cathode was chemically compatible with the BaZr0.1Ce0.7Y0.1Yb 0.1O3-δ (BZCYYb) electrolyte for temperatures up to 1000 C. Laboratory-sized tri-layer cells of NiO-BZCYYb/BZCYYb/BSFMo were operated from 550 to 700 C with humidified hydrogen (∼3% H2O) as fuel and the static air as oxidant, respectively. An open-circuit potential of 1.001 V, the maximum power density of 428 mW cm-2, and a low electrode polarization resistance of 0.148 Ω cm2 were achieved at 700 C. The experimental results indicated that the single-phase BSFMo is a promising candidate as cathode material for IL-SOFCs. © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Chemically compatible, Intermediate-to-low-temperature solid oxide fuel cells, Polarization resistance, Single-phase cathode

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)

Potentiality of cobalt-free perovskite Ba0.5Sr 0.5Fe0.9Mo0.1O3-δ as a single-phase cathode for intermediate-to-low-temperature solid oxide fuel cells. / Ling, Yihan; Zhang, Xiaozhen; Wang, Zhenbin et al.
In: International Journal of Hydrogen Energy, Vol. 38, No. 33, 04.11.2013, p. 14323-14328.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review