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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1799-1802
Number of pages4
JournalElectrochemistry Communications
Volume11
Issue number9
DOIs
Publication statusPublished - 1 Sep 2009

Keywords

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

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