One-Dimensional CuCo2O4-Er0.4Bi1.6O3 Composite Fiber as Cathode of Intermediate Temperature Solid Oxide Fuel Cells

Yu Kong; Chengzhi Sun; Xian Wu; Kening Sun; Xiaoju Yin; Naiqing Zhang

doi:10.1021/acssuschemeng.9b07727

One-Dimensional CuCo₂O₄-Er_0.4Bi_1.6O₃ Composite Fiber as Cathode of Intermediate Temperature Solid Oxide Fuel Cells

Yu Kong
, Chengzhi Sun
, Xian Wu
, Kening Sun
, Xiaoju Yin^*
, Naiqing Zhang

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

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

31 Scopus citations

Abstract

The reduced operating temperature is requisite for the wide application of the solid oxide fuel cells owing to the lower cost and longer lifetime. Nevertheless, in the intermediate temperature range, the significantly increased polarization loss appears in the solid oxide fuel cells, reducing the final performance. In order to solve this issue, here we report the one-dimensional CuCo₂O₄-Er_0.4Bi_1.6O₃ composite fibers, which are synthesized via electrospun method and utilized as cathodes of intermediate-temperature solid oxide fuel cells. The optimal Er_0.4Bi_1.6O₃ mass ratio of 35 wt % has been ascertained, possessing the lowest cathode polarization resistance of 0.021 ω cm² at 800 °C, which is 3.3 times lower than those of the CuCo₂O₄-Er_0.4Bi_1.6O₃ nanoparticle-structured composite cathode. All of the results demonstrate the potential of the CuCo₂O₄-Er_0.4Bi_1.6O₃ composite nanofiber serving as an efficient cathode for the intermediate temperature solid oxide fuel cells.

Original language	English
Pages (from-to)	3950-3958
Number of pages	9
Journal	ACS Sustainable Chemistry and Engineering
Volume	8
Issue number	9
DOIs	https://doi.org/10.1021/acssuschemeng.9b07727
State	Published - 9 Mar 2020

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

CuCoO-ErBiO composite cathode
Electrospun
Extended TPBs
IT-SOFCs
Lower sintering temperature
One-dimensional nanofiber
Oxygen reduction reaction
Sufficient adhesion

Access to Document

10.1021/acssuschemeng.9b07727

Cite this

@article{c6b0fd0216af4887a90e092aea9c2dbe,

title = "One-Dimensional CuCo2O4-Er0.4Bi1.6O3 Composite Fiber as Cathode of Intermediate Temperature Solid Oxide Fuel Cells",

abstract = "The reduced operating temperature is requisite for the wide application of the solid oxide fuel cells owing to the lower cost and longer lifetime. Nevertheless, in the intermediate temperature range, the significantly increased polarization loss appears in the solid oxide fuel cells, reducing the final performance. In order to solve this issue, here we report the one-dimensional CuCo2O4-Er0.4Bi1.6O3 composite fibers, which are synthesized via electrospun method and utilized as cathodes of intermediate-temperature solid oxide fuel cells. The optimal Er0.4Bi1.6O3 mass ratio of 35 wt \% has been ascertained, possessing the lowest cathode polarization resistance of 0.021 ω cm2 at 800 °C, which is 3.3 times lower than those of the CuCo2O4-Er0.4Bi1.6O3 nanoparticle-structured composite cathode. All of the results demonstrate the potential of the CuCo2O4-Er0.4Bi1.6O3 composite nanofiber serving as an efficient cathode for the intermediate temperature solid oxide fuel cells.",

keywords = "CuCoO-ErBiO composite cathode, Electrospun, Extended TPBs, IT-SOFCs, Lower sintering temperature, One-dimensional nanofiber, Oxygen reduction reaction, Sufficient adhesion",

author = "Yu Kong and Chengzhi Sun and Xian Wu and Kening Sun and Xiaoju Yin and Naiqing Zhang",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = mar,

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doi = "10.1021/acssuschemeng.9b07727",

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T1 - One-Dimensional CuCo2O4-Er0.4Bi1.6O3 Composite Fiber as Cathode of Intermediate Temperature Solid Oxide Fuel Cells

AU - Kong, Yu

AU - Sun, Chengzhi

AU - Wu, Xian

AU - Sun, Kening

AU - Yin, Xiaoju

AU - Zhang, Naiqing

PY - 2020/3/9

Y1 - 2020/3/9

N2 - The reduced operating temperature is requisite for the wide application of the solid oxide fuel cells owing to the lower cost and longer lifetime. Nevertheless, in the intermediate temperature range, the significantly increased polarization loss appears in the solid oxide fuel cells, reducing the final performance. In order to solve this issue, here we report the one-dimensional CuCo2O4-Er0.4Bi1.6O3 composite fibers, which are synthesized via electrospun method and utilized as cathodes of intermediate-temperature solid oxide fuel cells. The optimal Er0.4Bi1.6O3 mass ratio of 35 wt % has been ascertained, possessing the lowest cathode polarization resistance of 0.021 ω cm2 at 800 °C, which is 3.3 times lower than those of the CuCo2O4-Er0.4Bi1.6O3 nanoparticle-structured composite cathode. All of the results demonstrate the potential of the CuCo2O4-Er0.4Bi1.6O3 composite nanofiber serving as an efficient cathode for the intermediate temperature solid oxide fuel cells.

AB - The reduced operating temperature is requisite for the wide application of the solid oxide fuel cells owing to the lower cost and longer lifetime. Nevertheless, in the intermediate temperature range, the significantly increased polarization loss appears in the solid oxide fuel cells, reducing the final performance. In order to solve this issue, here we report the one-dimensional CuCo2O4-Er0.4Bi1.6O3 composite fibers, which are synthesized via electrospun method and utilized as cathodes of intermediate-temperature solid oxide fuel cells. The optimal Er0.4Bi1.6O3 mass ratio of 35 wt % has been ascertained, possessing the lowest cathode polarization resistance of 0.021 ω cm2 at 800 °C, which is 3.3 times lower than those of the CuCo2O4-Er0.4Bi1.6O3 nanoparticle-structured composite cathode. All of the results demonstrate the potential of the CuCo2O4-Er0.4Bi1.6O3 composite nanofiber serving as an efficient cathode for the intermediate temperature solid oxide fuel cells.

KW - CuCoO-ErBiO composite cathode

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KW - Extended TPBs

KW - IT-SOFCs

KW - Lower sintering temperature

KW - One-dimensional nanofiber

KW - Oxygen reduction reaction

KW - Sufficient adhesion

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DO - 10.1021/acssuschemeng.9b07727

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