Synthesis of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ  cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells

Chao Jin; Yachun Mao; David W. Rooney; Wang Sun; Naiqing Zhang; Kening Sun

doi:10.1016/j.ijhydene.2016.01.005

Synthesis of Pr_0.6Sr_0.4FeO_3-δ-xCe_0.9Pr_0.1O_2-δ cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells

Chao Jin
, Yachun Mao
, David W. Rooney
, Wang Sun
, Naiqing Zhang^*
, Kening Sun

^*Corresponding author for this work

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

29 Citations (Scopus)

Abstract

Cobalt-free composite cathodes consisting of Pr_0.6Sr_0.4FeO_3-δ-xCe_0.9Pr_0.1O_2-δ (PSFO-xCPO, x = 0-50 wt%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R _P) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R _P of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm^-2 at 650, 700, 750 and 800 °C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 °C.

Original language	English
Pages (from-to)	4005-4015
Journal	International Journal of Hydrogen Energy
Volume	41
Issue number	6
Early online date	27 Jan 2016
DOIs	https://doi.org/10.1016/j.ijhydene.2016.01.005
Publication status	Published - 19 Feb 2016

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Cobalt-free composite cathode
Electrochemical performance
Intermediate-temperature solid oxide fuel cells
One-pot method

ASJC Scopus subject areas

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

Access to Document

10.1016/j.ijhydene.2016.01.005Licence: Unspecified

Cite this

@article{6af0c342bf54463ebdcd6eb2014659b9,

title = "Synthesis of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells",

abstract = "Cobalt-free composite cathodes consisting of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ (PSFO-xCPO, x = 0-50 wt\%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R P ) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R P of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm-2 at 650, 700, 750 and 800 °C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 °C.",

keywords = "Cobalt-free composite cathode, Electrochemical performance, Intermediate-temperature solid oxide fuel cells, One-pot method",

author = "Chao Jin and Yachun Mao and Rooney, \{David W.\} and Wang Sun and Naiqing Zhang and Kening Sun",

year = "2016",

month = feb,

day = "19",

doi = "10.1016/j.ijhydene.2016.01.005",

language = "English",

volume = "41",

pages = "4005--4015",

journal = "International Journal of Hydrogen Energy",

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number = "6",

}

TY - JOUR

T1 - Synthesis of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells

AU - Jin, Chao

AU - Mao, Yachun

AU - Rooney, David W.

AU - Sun, Wang

AU - Zhang, Naiqing

AU - Sun, Kening

PY - 2016/2/19

Y1 - 2016/2/19

N2 - Cobalt-free composite cathodes consisting of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ (PSFO-xCPO, x = 0-50 wt%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R P ) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R P of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm-2 at 650, 700, 750 and 800 °C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 °C.

AB - Cobalt-free composite cathodes consisting of Pr0.6Sr0.4FeO 3-δ -xCe0.9Pr0.1O 2-δ (PSFO-xCPO, x = 0-50 wt%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R P ) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R P of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm-2 at 650, 700, 750 and 800 °C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 °C.

KW - Cobalt-free composite cathode

KW - Electrochemical performance

KW - Intermediate-temperature solid oxide fuel cells

KW - One-pot method

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