A single-step synthesized cobalt-free barium ferrites-based composite cathode for intermediate temperature solid oxide fuel cells

Yingjie Niu; Wei Zhou; Jaka Sunarso; Fengli Liang; Zhonghua Zhu; Zongping Shao

doi:10.1016/j.elecom.2011.08.007

A single-step synthesized cobalt-free barium ferrites-based composite cathode for intermediate temperature solid oxide fuel cells

Yingjie Niu, Wei Zhou, Jaka Sunarso, Fengli Liang, Zhonghua Zhu, Zongping Shao

COLLEGE OF CHEMICAL ENGINEERING

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

22 Scopus citations

Abstract

Cobalt-free perovskite cathode with excellent oxygen reduction reaction (ORR) properties below 800 °C is a key material toward wide implementation of intermediate-temperature solid oxide fuel cells. This work reports the phase structure, microstructure and performance of such cathode based on the composite phases of triclinic Ba_0.9Bi_0.1FeO_3-δ, cubic BaFeO₃ and orthorhombic BaFe₂O₄ prepared by sol-gel route. The resultant barium ferrites composite cathode exhibits uniform particles, pores and elements distribution. In particular, favorable ORR properties of this cathode is demonstrated by very low interfacial resistance of only 0.036 and 0.072 Ω cm2 at 750 and 700 °C and maximum power density of 1295 and 840 mW cm^-2 at 750 and 700 °C.

Original language	English
Pages (from-to)	1340-1343
Number of pages	4
Journal	Electrochemistry Communications
Volume	13
Issue number	12
DOIs	https://doi.org/10.1016/j.elecom.2011.08.007
State	Published - Dec 2011

Keywords

Cobalt-free
Composite cathode
Electrochemical impedance spectroscopy
Solid oxide fuel cells

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10.1016/j.elecom.2011.08.007

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title = "A single-step synthesized cobalt-free barium ferrites-based composite cathode for intermediate temperature solid oxide fuel cells",

abstract = "Cobalt-free perovskite cathode with excellent oxygen reduction reaction (ORR) properties below 800 °C is a key material toward wide implementation of intermediate-temperature solid oxide fuel cells. This work reports the phase structure, microstructure and performance of such cathode based on the composite phases of triclinic Ba0.9Bi0.1FeO3-δ, cubic BaFeO3 and orthorhombic BaFe2O4 prepared by sol-gel route. The resultant barium ferrites composite cathode exhibits uniform particles, pores and elements distribution. In particular, favorable ORR properties of this cathode is demonstrated by very low interfacial resistance of only 0.036 and 0.072 Ω cm2 at 750 and 700 °C and maximum power density of 1295 and 840 mW cm-2 at 750 and 700 °C.",

keywords = "Cobalt-free, Composite cathode, Electrochemical impedance spectroscopy, Solid oxide fuel cells",

author = "Yingjie Niu and Wei Zhou and Jaka Sunarso and Fengli Liang and Zhonghua Zhu and Zongping Shao",

year = "2011",

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doi = "10.1016/j.elecom.2011.08.007",

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T1 - A single-step synthesized cobalt-free barium ferrites-based composite cathode for intermediate temperature solid oxide fuel cells

AU - Niu, Yingjie

AU - Zhou, Wei

AU - Sunarso, Jaka

AU - Liang, Fengli

AU - Zhu, Zhonghua

AU - Shao, Zongping

PY - 2011/12

Y1 - 2011/12

N2 - Cobalt-free perovskite cathode with excellent oxygen reduction reaction (ORR) properties below 800 °C is a key material toward wide implementation of intermediate-temperature solid oxide fuel cells. This work reports the phase structure, microstructure and performance of such cathode based on the composite phases of triclinic Ba0.9Bi0.1FeO3-δ, cubic BaFeO3 and orthorhombic BaFe2O4 prepared by sol-gel route. The resultant barium ferrites composite cathode exhibits uniform particles, pores and elements distribution. In particular, favorable ORR properties of this cathode is demonstrated by very low interfacial resistance of only 0.036 and 0.072 Ω cm2 at 750 and 700 °C and maximum power density of 1295 and 840 mW cm-2 at 750 and 700 °C.

AB - Cobalt-free perovskite cathode with excellent oxygen reduction reaction (ORR) properties below 800 °C is a key material toward wide implementation of intermediate-temperature solid oxide fuel cells. This work reports the phase structure, microstructure and performance of such cathode based on the composite phases of triclinic Ba0.9Bi0.1FeO3-δ, cubic BaFeO3 and orthorhombic BaFe2O4 prepared by sol-gel route. The resultant barium ferrites composite cathode exhibits uniform particles, pores and elements distribution. In particular, favorable ORR properties of this cathode is demonstrated by very low interfacial resistance of only 0.036 and 0.072 Ω cm2 at 750 and 700 °C and maximum power density of 1295 and 840 mW cm-2 at 750 and 700 °C.

KW - Cobalt-free

KW - Composite cathode

KW - Electrochemical impedance spectroscopy

KW - Solid oxide fuel cells

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DO - 10.1016/j.elecom.2011.08.007

M3 - 文章

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VL - 13

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EP - 1343

JO - Electrochemistry Communications

JF - Electrochemistry Communications

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ER -

A single-step synthesized cobalt-free barium ferrites-based composite cathode for intermediate temperature solid oxide fuel cells

Abstract

Keywords

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