SrCo0.85Fe0.1P0.05O3-delta perovskite as a cathode for intermediate-temperature solid oxide fuel cells

Li, Mengran, Zhou, Wei, Xu, Xiaoyong and Zhu, Zhonghua (2013) SrCo0.85Fe0.1P0.05O3-delta perovskite as a cathode for intermediate-temperature solid oxide fuel cells. Journal of Materials Chemistry A, 1 43: 13632-13639. doi:10.1039/c3ta12781h

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Author Li, Mengran
Zhou, Wei
Xu, Xiaoyong
Zhu, Zhonghua
Title SrCo0.85Fe0.1P0.05O3-delta perovskite as a cathode for intermediate-temperature solid oxide fuel cells
Journal name Journal of Materials Chemistry A   Check publisher's open access policy
ISSN 2050-7488
2050-7496
Publication date 2013-01
Year available 2013
Sub-type Article (original research)
DOI 10.1039/c3ta12781h
Open Access Status Not Open Access
Volume 1
Issue 43
Start page 13632
End page 13639
Total pages 8
Place of publication Cambridge, United Kingdom
Publisher R S C Publications
Collection year 2014
Language eng
Formatted abstract
In this paper a phosphorus doped perovskite, SrCo0.85Fe 0.1P0.05O3-δ (SCFP), is evaluated as a cathode material for intermediate-temperature solid oxide fuel cells. It is observed that the phosphorus dopant can prevent the Sr-Co-Fe-O system from oxygen vacancy ordering and stabilise the crystallite structure of the oxide in the 3C perovskite phase at high temperature as proved by XRD, TGA, O 2-TPD and electrical conductivity characterization. SCFP shows excellent chemical compatibility with Sm0.2Ce0.8O 1.9 (SDC) electrolyte even at 1200 °C. The oxygen reduction reaction (ORR) activity is investigated on a dense SDC pellet in a symmetrical cell configuration, and the area specific resistance (ASRs) of SCFP is as low as 0.097 Ω cm2 at 589 °C, which is comparable to the performance of the benchmark cathode BSCF. The stabilised structure for SCFP also improves the stability of the ORR activity at high temperature.
Keyword Oxygen Stoichiometry
Neutron diffraction
Phase
Conductivity
Cobalt
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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Created: Sun, 24 Nov 2013, 00:17:51 EST by System User on behalf of School of Chemical Engineering