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

化工学院

科研成果: 期刊稿件 › 文章 › 同行评审

22 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	1340-1343
页数	4
期刊	Electrochemistry Communications
卷	13
期	12
DOI	https://doi.org/10.1016/j.elecom.2011.08.007
出版状态	已出版 - 12月 2011

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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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SN - 1388-2481

VL - 13

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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

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