Novel co-extruded electrolyte-anode hollow fibres for solid oxide fuel cells

Nicolas Droushiotis; Mohd Hafiz Dzarfan Othman; Uttam Doraswami; Zhentao Wu; Geoff Kelsall; Kang Li

doi:10.1016/j.elecom.2009.07.022

Novel co-extruded electrolyte-anode hollow fibres for solid oxide fuel cells

Nicolas Droushiotis, Mohd Hafiz Dzarfan Othman, Uttam Doraswami, Zhentao Wu, Geoff Kelsall, Kang Li^*

^*Corresponding author for this work

Chemical Engineering & Applied Chemistry

Imperial College London

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

55 Citations (Scopus)

Abstract

Novel CGO/NiO-CGO dual-layer hollow fibres (HFs) have been fabricated in a single-step co-extrusion and co-sintering process. LSCF-CGO cathodes layers were then deposited onto the dual-layer HFs to construct micro-tubular SOFCs. The NiO in the micro-tubular HF-SOFCs was reduced at 550 °C using hydrogen gas to form Ni anodes. Scanning electron microscope images showed that the dual-layer HFs have porous anodes and dense electrolyte layers. Preliminary measurements with a HF-SOFC fed with H₂ and atmospheric oxygen, produced maximum power densities of 420 W m^-2 and 800 W m^-2 at 450 °C and 550 °C, respectively.

Original language	English
Pages (from-to)	1799-1802
Number of pages	4
Journal	Electrochemistry Communications
Volume	11
Issue number	9
DOIs	https://doi.org/10.1016/j.elecom.2009.07.022
Publication status	Published - 1 Sept 2009

Funding

The authors acknowledge the UK EPSRC for grant EP/E00136X, the Ministry of Higher Education of Malaysia and Universiti Teknologi Malaysia, the British Council, Chiao Chien Wei and Dr. Wang Bo for their support and contribution to this project.

Keywords

CGO
Co-extrusion
Hollow fibres
LSCF
Micro-tubular SOFC
Ni

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10.1016/j.elecom.2009.07.022

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title = "Novel co-extruded electrolyte-anode hollow fibres for solid oxide fuel cells",

abstract = "Novel CGO/NiO-CGO dual-layer hollow fibres (HFs) have been fabricated in a single-step co-extrusion and co-sintering process. LSCF-CGO cathodes layers were then deposited onto the dual-layer HFs to construct micro-tubular SOFCs. The NiO in the micro-tubular HF-SOFCs was reduced at 550 °C using hydrogen gas to form Ni anodes. Scanning electron microscope images showed that the dual-layer HFs have porous anodes and dense electrolyte layers. Preliminary measurements with a HF-SOFC fed with H2 and atmospheric oxygen, produced maximum power densities of 420 W m-2 and 800 W m-2 at 450 °C and 550 °C, respectively.",

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author = "Nicolas Droushiotis and Othman, {Mohd Hafiz Dzarfan} and Uttam Doraswami and Zhentao Wu and Geoff Kelsall and Kang Li",

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AU - Droushiotis, Nicolas

AU - Othman, Mohd Hafiz Dzarfan

AU - Doraswami, Uttam

AU - Wu, Zhentao

AU - Kelsall, Geoff

AU - Li, Kang

PY - 2009/9/1

Y1 - 2009/9/1

N2 - Novel CGO/NiO-CGO dual-layer hollow fibres (HFs) have been fabricated in a single-step co-extrusion and co-sintering process. LSCF-CGO cathodes layers were then deposited onto the dual-layer HFs to construct micro-tubular SOFCs. The NiO in the micro-tubular HF-SOFCs was reduced at 550 °C using hydrogen gas to form Ni anodes. Scanning electron microscope images showed that the dual-layer HFs have porous anodes and dense electrolyte layers. Preliminary measurements with a HF-SOFC fed with H2 and atmospheric oxygen, produced maximum power densities of 420 W m-2 and 800 W m-2 at 450 °C and 550 °C, respectively.

AB - Novel CGO/NiO-CGO dual-layer hollow fibres (HFs) have been fabricated in a single-step co-extrusion and co-sintering process. LSCF-CGO cathodes layers were then deposited onto the dual-layer HFs to construct micro-tubular SOFCs. The NiO in the micro-tubular HF-SOFCs was reduced at 550 °C using hydrogen gas to form Ni anodes. Scanning electron microscope images showed that the dual-layer HFs have porous anodes and dense electrolyte layers. Preliminary measurements with a HF-SOFC fed with H2 and atmospheric oxygen, produced maximum power densities of 420 W m-2 and 800 W m-2 at 450 °C and 550 °C, respectively.

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KW - LSCF

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KW - Ni

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Novel co-extruded electrolyte-anode hollow fibres for solid oxide fuel cells

Abstract

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Keywords

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