Optimization of a direct carbon fuel cell for operation below 700 °c

Xiaoyong Xu; Wei Zhou; Fengli Liang; Zhonghua Zhu

doi:10.1016/j.ijhydene.2013.02.066

Optimization of a direct carbon fuel cell for operation below 700 °c

Xiaoyong Xu, Wei Zhou, Fengli Liang, Zhonghua Zhu

University of Queensland

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

37 Scopus citations

Abstract

Direct carbon fuel cells (DCFCs) are the most efficient technology to convert solid carbon energy to electricity and thus could have a major impact on reducing fuel consumption and CO₂ emissions. The development of DCFCs to commercialisation stage is largely prohibited by their poor power densities due to the high resistive loss from anode. Here, we report a high-performance Sm_0.2Ce_0.8O_1.9 electrolyte-supported hybrid DCFC with Ba_0.5Sr_0.5Co _0.8Fe_0.2O_3-δ cathode and optimised anode configuration. The catalytic oxidation of carbon is improved, which results in an area specific resistance of only 0.41 cm² at 650 °C at the anode. The hybrid DCFC achieves a peak power density of 113.1 mW cm^-2 at 650 °C operating on activated carbon. The stability of the fuel cell has also been improved due to the optimised current collection. Crown

Original language	English
Pages (from-to)	5367-5374
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	13
DOIs	https://doi.org/10.1016/j.ijhydene.2013.02.066
State	Published - 1 May 2013
Externally published	Yes

Keywords

Carbonates
Direct carbon fuel cell
Electrolyte-supported fuel cell
Solid carbon

UN SDGs

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

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10.1016/j.ijhydene.2013.02.066

Cite this

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title = "Optimization of a direct carbon fuel cell for operation below 700 °c",

abstract = "Direct carbon fuel cells (DCFCs) are the most efficient technology to convert solid carbon energy to electricity and thus could have a major impact on reducing fuel consumption and CO2 emissions. The development of DCFCs to commercialisation stage is largely prohibited by their poor power densities due to the high resistive loss from anode. Here, we report a high-performance Sm0.2Ce0.8O1.9 electrolyte-supported hybrid DCFC with Ba0.5Sr0.5Co 0.8Fe0.2O3-δ cathode and optimised anode configuration. The catalytic oxidation of carbon is improved, which results in an area specific resistance of only 0.41 cm2 at 650 °C at the anode. The hybrid DCFC achieves a peak power density of 113.1 mW cm-2 at 650 °C operating on activated carbon. The stability of the fuel cell has also been improved due to the optimised current collection. Crown",

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author = "Xiaoyong Xu and Wei Zhou and Fengli Liang and Zhonghua Zhu",

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T1 - Optimization of a direct carbon fuel cell for operation below 700 °c

AU - Xu, Xiaoyong

AU - Zhou, Wei

AU - Liang, Fengli

AU - Zhu, Zhonghua

PY - 2013/5/1

Y1 - 2013/5/1

N2 - Direct carbon fuel cells (DCFCs) are the most efficient technology to convert solid carbon energy to electricity and thus could have a major impact on reducing fuel consumption and CO2 emissions. The development of DCFCs to commercialisation stage is largely prohibited by their poor power densities due to the high resistive loss from anode. Here, we report a high-performance Sm0.2Ce0.8O1.9 electrolyte-supported hybrid DCFC with Ba0.5Sr0.5Co 0.8Fe0.2O3-δ cathode and optimised anode configuration. The catalytic oxidation of carbon is improved, which results in an area specific resistance of only 0.41 cm2 at 650 °C at the anode. The hybrid DCFC achieves a peak power density of 113.1 mW cm-2 at 650 °C operating on activated carbon. The stability of the fuel cell has also been improved due to the optimised current collection. Crown

AB - Direct carbon fuel cells (DCFCs) are the most efficient technology to convert solid carbon energy to electricity and thus could have a major impact on reducing fuel consumption and CO2 emissions. The development of DCFCs to commercialisation stage is largely prohibited by their poor power densities due to the high resistive loss from anode. Here, we report a high-performance Sm0.2Ce0.8O1.9 electrolyte-supported hybrid DCFC with Ba0.5Sr0.5Co 0.8Fe0.2O3-δ cathode and optimised anode configuration. The catalytic oxidation of carbon is improved, which results in an area specific resistance of only 0.41 cm2 at 650 °C at the anode. The hybrid DCFC achieves a peak power density of 113.1 mW cm-2 at 650 °C operating on activated carbon. The stability of the fuel cell has also been improved due to the optimised current collection. Crown

KW - Carbonates

KW - Direct carbon fuel cell

KW - Electrolyte-supported fuel cell

KW - Solid carbon

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SN - 0360-3199

VL - 38

SP - 5367

EP - 5374

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 13

ER -

Optimization of a direct carbon fuel cell for operation below 700 °c

Abstract

Keywords

UN SDGs

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