Synthesis of Ba0.3Ca0.7Co0.8Fe0.2O3-δ composite material as novel catalytic cathode for ceria-carbonate electrolyte fuel cells

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Synthesis of Ba0.3Ca0.7Co0.8Fe0.2O3-δ composite material as novel catalytic cathode for ceria-carbonate electrolyte fuel cells. / Afzal, Muhammad; Raza, Rizwan; Du, Shangfeng; Lima, Raquel Bohn; Zhu, Bin.

In: Electrochimica Acta, Vol. 178, 01.10.2015, p. 385-391.

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@article{706ec26a411041e59e02081be891db4b,
title = "Synthesis of Ba0.3Ca0.7Co0.8Fe0.2O3-δ composite material as novel catalytic cathode for ceria-carbonate electrolyte fuel cells",
abstract = "This work reports a new composite BaxCa1-xCoyFe1-yO3-δ (BCCF) cathode material for advanced and low temperature solid oxide fuel cells (SOFCs). The BCCF-based composite material was synthesized by sol gel method and investigated as a catalytic cathode for low temperature (LT) SOFCs. XRD analysis of the as-prepared material revealed the dominating BCCF perovskite structure as the main phase accompanied with cobalt and calcium oxides as the secondary phases resulting into an overall composite structure. Structure and morphology of the sample was observed by Field Emission Scanning Electron Microscope (FE-SEM). In particular, the Ba0.3Ca0.7Co0.8Fe0.2O3-δ (BCCF37) showed a maximum conductivity of 143 S cm−1 in air at 550 °C measured by DC 4 probe method. The BCCF at the optimized composition exhibited much higher electrical conductivities than the commercial Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) perovskite cathode material. A maximum power density of 325 mW cm−2 at 550 °C is achieved for the ceria-carbonate electrolyte fuel cell with BCCF37 as the cathode material.",
keywords = "Composite cathode, perovskite oxide, BCCF37, low temperature, SOFC",
author = "Muhammad Afzal and Rizwan Raza and Shangfeng Du and Lima, {Raquel Bohn} and Bin Zhu",
year = "2015",
month = oct,
day = "1",
doi = "10.1016/j.electacta.2015.07.183",
language = "English",
volume = "178",
pages = "385--391",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Synthesis of Ba0.3Ca0.7Co0.8Fe0.2O3-δ composite material as novel catalytic cathode for ceria-carbonate electrolyte fuel cells

AU - Afzal, Muhammad

AU - Raza, Rizwan

AU - Du, Shangfeng

AU - Lima, Raquel Bohn

AU - Zhu, Bin

PY - 2015/10/1

Y1 - 2015/10/1

N2 - This work reports a new composite BaxCa1-xCoyFe1-yO3-δ (BCCF) cathode material for advanced and low temperature solid oxide fuel cells (SOFCs). The BCCF-based composite material was synthesized by sol gel method and investigated as a catalytic cathode for low temperature (LT) SOFCs. XRD analysis of the as-prepared material revealed the dominating BCCF perovskite structure as the main phase accompanied with cobalt and calcium oxides as the secondary phases resulting into an overall composite structure. Structure and morphology of the sample was observed by Field Emission Scanning Electron Microscope (FE-SEM). In particular, the Ba0.3Ca0.7Co0.8Fe0.2O3-δ (BCCF37) showed a maximum conductivity of 143 S cm−1 in air at 550 °C measured by DC 4 probe method. The BCCF at the optimized composition exhibited much higher electrical conductivities than the commercial Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) perovskite cathode material. A maximum power density of 325 mW cm−2 at 550 °C is achieved for the ceria-carbonate electrolyte fuel cell with BCCF37 as the cathode material.

AB - This work reports a new composite BaxCa1-xCoyFe1-yO3-δ (BCCF) cathode material for advanced and low temperature solid oxide fuel cells (SOFCs). The BCCF-based composite material was synthesized by sol gel method and investigated as a catalytic cathode for low temperature (LT) SOFCs. XRD analysis of the as-prepared material revealed the dominating BCCF perovskite structure as the main phase accompanied with cobalt and calcium oxides as the secondary phases resulting into an overall composite structure. Structure and morphology of the sample was observed by Field Emission Scanning Electron Microscope (FE-SEM). In particular, the Ba0.3Ca0.7Co0.8Fe0.2O3-δ (BCCF37) showed a maximum conductivity of 143 S cm−1 in air at 550 °C measured by DC 4 probe method. The BCCF at the optimized composition exhibited much higher electrical conductivities than the commercial Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) perovskite cathode material. A maximum power density of 325 mW cm−2 at 550 °C is achieved for the ceria-carbonate electrolyte fuel cell with BCCF37 as the cathode material.

KW - Composite cathode

KW - perovskite oxide

KW - BCCF37

KW - low temperature

KW - SOFC

U2 - 10.1016/j.electacta.2015.07.183

DO - 10.1016/j.electacta.2015.07.183

M3 - Article

VL - 178

SP - 385

EP - 391

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -