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

Mengran Li; Wei Zhou; Xiaoyong Xu; Zhonghua Zhu

doi:10.1039/c3ta12781h

SrCo_0.85Fe_0.1P_0.05O_3-δ perovskite as a cathode for intermediate-temperature solid oxide fuel cells

Mengran Li, Wei Zhou, Xiaoyong Xu, Zhonghua Zhu

University of Queensland

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

In this paper a phosphorus doped perovskite, SrCo_0.85Fe _0.1P_0.05O_3-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 Sm_0.2Ce_0.8O _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.

Original language	English
Pages (from-to)	13632-13639
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	43
DOIs	https://doi.org/10.1039/c3ta12781h
State	Published - 21 Nov 2013
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/c3ta12781h

Cite this

@article{281240b986404c60938648fa24c07caa,

title = "SrCo0.85Fe0.1P0.05O3-δ perovskite as a cathode for intermediate-temperature solid oxide fuel cells",

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.",

author = "Mengran Li and Wei Zhou and Xiaoyong Xu and Zhonghua Zhu",

year = "2013",

month = nov,

day = "21",

doi = "10.1039/c3ta12781h",

language = "英语",

volume = "1",

pages = "13632--13639",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

number = "43",

}

TY - JOUR

T1 - SrCo0.85Fe0.1P0.05O3-δ perovskite as a cathode for intermediate-temperature solid oxide fuel cells

AU - Li, Mengran

AU - Zhou, Wei

AU - Xu, Xiaoyong

AU - Zhu, Zhonghua

PY - 2013/11/21

Y1 - 2013/11/21

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84886935413&partnerID=8YFLogxK

U2 - 10.1039/c3ta12781h

DO - 10.1039/c3ta12781h

M3 - 文章

AN - SCOPUS:84886935413

SN - 2050-7488

VL - 1

SP - 13632

EP - 13639

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 43

ER -

SrCo_0.85Fe_0.1P_0.05O_3-δ perovskite as a cathode for intermediate-temperature solid oxide fuel cells

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this