Investigation of cobalt-free cathode material Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ for intermediate temperature solid oxide fuel cell

Yihan Ling; Ling Zhao; Bin Lin; Yingchao Dong; Xiaozhen Zhang; Guangyao Meng; Xingqin Liu

doi:10.1016/j.ijhydene.2010.04.021

Investigation of cobalt-free cathode material Sm_0.5Sr _0.5Fe_0.8Cu_0.2O_3-δ for intermediate temperature solid oxide fuel cell

Yihan Ling, Ling Zhao, Bin Lin, Yingchao Dong, Xiaozhen Zhang, Guangyao Meng, Xingqin Liu^*

^*Corresponding author for this work

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

100 Scopus citations

Abstract

A cobalt-free cubic perovskite oxide Sm_0.5Sr _0.5Fe_0.8Cu_0.2O_3-δ (SSFCu) was investigated as a novel cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The thermal expansion coefficient (TEC) of SSFCu was close to that of Sm_0.2Ce_0.8O_1.9(SDC) electrolyte and the electrical conductivity of SSFCu sample reached 72-82 S cm^-1 in the commonly operated temperatures of IT-SOFCs (400-600 °C). Symmetrical electrochemical cell with the configuration of SSFCu/SDC/SSFCu was applied for the impedance study and area specific resistance (ASR) of SSFCu cathode material was as low as 0.085 Ω cm² at 700 °C. Laboratory-sized tri-layer cells of NiO-SDC/SDC/SSFCu were operated from 450 to 700 °C with humidified hydrogen (∼3% H₂O) as fuel and the static air as oxidant. A maximum power density of 808 mW cm² was obtained at 700 °C for the single cell.

Original language	English (US)
Pages (from-to)	6905-6910
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	35
Issue number	13
DOIs	https://doi.org/10.1016/j.ijhydene.2010.04.021
State	Published - Jul 2010
Externally published	Yes

Keywords

Cobalt-free cathode
Intermediate-temperature solid oxide fuel cell
Symmetrical electrochemical cell
Thermal expansion coefficient

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2010.04.021

Cite this

@article{78832d84c4534935b9cdb573f149d3f2,

title = "Investigation of cobalt-free cathode material Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ for intermediate temperature solid oxide fuel cell",

abstract = "A cobalt-free cubic perovskite oxide Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ (SSFCu) was investigated as a novel cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The thermal expansion coefficient (TEC) of SSFCu was close to that of Sm0.2Ce0.8O1.9(SDC) electrolyte and the electrical conductivity of SSFCu sample reached 72-82 S cm-1 in the commonly operated temperatures of IT-SOFCs (400-600 °C). Symmetrical electrochemical cell with the configuration of SSFCu/SDC/SSFCu was applied for the impedance study and area specific resistance (ASR) of SSFCu cathode material was as low as 0.085 Ω cm2 at 700 °C. Laboratory-sized tri-layer cells of NiO-SDC/SDC/SSFCu were operated from 450 to 700 °C with humidified hydrogen (∼3% H2O) as fuel and the static air as oxidant. A maximum power density of 808 mW cm2 was obtained at 700 °C for the single cell.",

keywords = "Cobalt-free cathode, Intermediate-temperature solid oxide fuel cell, Symmetrical electrochemical cell, Thermal expansion coefficient",

author = "Yihan Ling and Ling Zhao and Bin Lin and Yingchao Dong and Xiaozhen Zhang and Guangyao Meng and Xingqin Liu",

year = "2010",

month = jul,

doi = "10.1016/j.ijhydene.2010.04.021",

language = "English (US)",

volume = "35",

pages = "6905--6910",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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T1 - Investigation of cobalt-free cathode material Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ for intermediate temperature solid oxide fuel cell

AU - Ling, Yihan

AU - Zhao, Ling

AU - Lin, Bin

AU - Dong, Yingchao

AU - Zhang, Xiaozhen

AU - Meng, Guangyao

AU - Liu, Xingqin

PY - 2010/7

Y1 - 2010/7

N2 - A cobalt-free cubic perovskite oxide Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ (SSFCu) was investigated as a novel cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The thermal expansion coefficient (TEC) of SSFCu was close to that of Sm0.2Ce0.8O1.9(SDC) electrolyte and the electrical conductivity of SSFCu sample reached 72-82 S cm-1 in the commonly operated temperatures of IT-SOFCs (400-600 °C). Symmetrical electrochemical cell with the configuration of SSFCu/SDC/SSFCu was applied for the impedance study and area specific resistance (ASR) of SSFCu cathode material was as low as 0.085 Ω cm2 at 700 °C. Laboratory-sized tri-layer cells of NiO-SDC/SDC/SSFCu were operated from 450 to 700 °C with humidified hydrogen (∼3% H2O) as fuel and the static air as oxidant. A maximum power density of 808 mW cm2 was obtained at 700 °C for the single cell.

AB - A cobalt-free cubic perovskite oxide Sm0.5Sr 0.5Fe0.8Cu0.2O3-δ (SSFCu) was investigated as a novel cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The thermal expansion coefficient (TEC) of SSFCu was close to that of Sm0.2Ce0.8O1.9(SDC) electrolyte and the electrical conductivity of SSFCu sample reached 72-82 S cm-1 in the commonly operated temperatures of IT-SOFCs (400-600 °C). Symmetrical electrochemical cell with the configuration of SSFCu/SDC/SSFCu was applied for the impedance study and area specific resistance (ASR) of SSFCu cathode material was as low as 0.085 Ω cm2 at 700 °C. Laboratory-sized tri-layer cells of NiO-SDC/SDC/SSFCu were operated from 450 to 700 °C with humidified hydrogen (∼3% H2O) as fuel and the static air as oxidant. A maximum power density of 808 mW cm2 was obtained at 700 °C for the single cell.

KW - Cobalt-free cathode

KW - Intermediate-temperature solid oxide fuel cell

KW - Symmetrical electrochemical cell

KW - Thermal expansion coefficient

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