Novel cobalt-free cathode materials BaCexFe1-xO3-δ for proton-conducting solid oxide fuel cells

Zetian Tao; Lei Bi; Zhiwen Zhu; Wei Liu

doi:10.1016/j.jpowsour.2009.06.071

Novel cobalt-free cathode materials BaCe_xFe_1-xO_3-δ for proton-conducting solid oxide fuel cells

Zetian Tao, Lei Bi, Zhiwen Zhu, Wei Liu^*

^*Corresponding author for this work

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

100 Scopus citations

Abstract

A series of cobalt-free and low cost BaCe_xFe_1-xO_3-δ (x = 0.15, 0.50, 0.85) materials are successful synthesized and used as the cathode materials for proton-conducting solid oxide fuel cells (SOFCs). The single cell, consisting of a BaZr_0.1Ce_0.7Y_0.2O_3-δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BaCe_xFe_1-xO_3-δ cathode layer, is assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H₂O) as the fuel and the static air as the oxidant. Within all the cathode materials above, the cathode BaCe_0.5Fe_0.5O_3-δ shows the highest cell performance which could obtain an open-circuit potential of 0.99 V and a maximum power density of 395 mW cm^-2 at 700 °C. The results indicate that the Fe-doped barium cerates can be promising cathodes for proton-conducting SOFCs.

Original language	English (US)
Pages (from-to)	801-804
Number of pages	4
Journal	Journal of Power Sources
Volume	194
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2009.06.071
State	Published - Dec 1 2009
Externally published	Yes

Keywords

Doped barium cerate
Functional layer
Perovskite structure
Proton conducting
Solid oxide fuel cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2009.06.071

Cite this

@article{eb9bdce2a3064fdfa34f0a3c750fca27,

title = "Novel cobalt-free cathode materials BaCexFe1-xO3-δ for proton-conducting solid oxide fuel cells",

abstract = "A series of cobalt-free and low cost BaCexFe1-xO3-δ (x = 0.15, 0.50, 0.85) materials are successful synthesized and used as the cathode materials for proton-conducting solid oxide fuel cells (SOFCs). The single cell, consisting of a BaZr0.1Ce0.7Y0.2O3-δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BaCexFe1-xO3-δ cathode layer, is assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H2O) as the fuel and the static air as the oxidant. Within all the cathode materials above, the cathode BaCe0.5Fe0.5O3-δ shows the highest cell performance which could obtain an open-circuit potential of 0.99 V and a maximum power density of 395 mW cm-2 at 700 °C. The results indicate that the Fe-doped barium cerates can be promising cathodes for proton-conducting SOFCs.",

keywords = "Doped barium cerate, Functional layer, Perovskite structure, Proton conducting, Solid oxide fuel cells",

author = "Zetian Tao and Lei Bi and Zhiwen Zhu and Wei Liu",

note = "Funding Information: This work is supported by the Key Program of Chinese Academy of Sciences (Grant No.: KJCX1.YW07) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157).",

year = "2009",

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doi = "10.1016/j.jpowsour.2009.06.071",

language = "English (US)",

volume = "194",

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TY - JOUR

T1 - Novel cobalt-free cathode materials BaCexFe1-xO3-δ for proton-conducting solid oxide fuel cells

AU - Tao, Zetian

AU - Bi, Lei

AU - Zhu, Zhiwen

AU - Liu, Wei

N1 - Funding Information: This work is supported by the Key Program of Chinese Academy of Sciences (Grant No.: KJCX1.YW07) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157).

PY - 2009/12/1

Y1 - 2009/12/1

N2 - A series of cobalt-free and low cost BaCexFe1-xO3-δ (x = 0.15, 0.50, 0.85) materials are successful synthesized and used as the cathode materials for proton-conducting solid oxide fuel cells (SOFCs). The single cell, consisting of a BaZr0.1Ce0.7Y0.2O3-δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BaCexFe1-xO3-δ cathode layer, is assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H2O) as the fuel and the static air as the oxidant. Within all the cathode materials above, the cathode BaCe0.5Fe0.5O3-δ shows the highest cell performance which could obtain an open-circuit potential of 0.99 V and a maximum power density of 395 mW cm-2 at 700 °C. The results indicate that the Fe-doped barium cerates can be promising cathodes for proton-conducting SOFCs.

AB - A series of cobalt-free and low cost BaCexFe1-xO3-δ (x = 0.15, 0.50, 0.85) materials are successful synthesized and used as the cathode materials for proton-conducting solid oxide fuel cells (SOFCs). The single cell, consisting of a BaZr0.1Ce0.7Y0.2O3-δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BaCexFe1-xO3-δ cathode layer, is assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H2O) as the fuel and the static air as the oxidant. Within all the cathode materials above, the cathode BaCe0.5Fe0.5O3-δ shows the highest cell performance which could obtain an open-circuit potential of 0.99 V and a maximum power density of 395 mW cm-2 at 700 °C. The results indicate that the Fe-doped barium cerates can be promising cathodes for proton-conducting SOFCs.

KW - Doped barium cerate

KW - Functional layer

KW - Perovskite structure

KW - Proton conducting

KW - Solid oxide fuel cells

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