Manufacturing of anode-supported tubular solid oxide fuel cells by a new shaping technique using aqueous gel-casting

Helena Navarro, X. G. Capdevila, M. Morales, J. J. Roa, M. Segarra

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

A new gel-casting technique has been successfully developed to obtain tubular NiO-SDC anode-supported solid oxide fuel cells (SOFCs). Rheological parameters of the ceramic particle suspensions, directly influencing on casting and production, were investigated as a function of process parameters: solid loading, dispersant and agarose amounts. Afterwards, a SDC (Sm 0.2Ce 0.8O 1.9) electrolyte film was deposited on NiO-SDC tubular anode substrates by colloidal spray-coating technique and co-sintering at 1400 °C for 5 h. The shrinkage and microstructure of the sintered cell components were studied. SEM results revealed high porosities of anode (40%) and cathode (La 0.5Sr 0.5CoO 3, LSC), a dense SDC film electrolyte with a thickness of 30 μm and a good adhesion between the electrolyte, and the anode and cathode.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalJournal of Power Sources
Volume200
DOIs
Publication statusPublished - 15 Feb 2012

Keywords

  • Anode-supported tubular SOFC
  • Doped ceria
  • Extrusion
  • Gel-casting
  • Manufacturing
  • SOFC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

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