Foaming of filled polyurethanes for fabrication of porous anode supports for intermediate temperature-solid oxide fuel cells

Alberto Rainer, Francesco Basoli, Silvia Licoccia, Enrico Traversa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The development of a tailored microstructure is considered essential for the development of anode-supported intermediate temperature-solid oxide fuel cells (IT-SOFCs) as it is expected to enhance kinetics at the triple phase boundary. In this study, the application of an in situ foaming technique for the preparation of Ni-yttria-stabilized zirconia (YSZ) cellular solids as an anode support for IT-SOFCs is presented. The cermet microstructure is dependent on the preparative route followed. The presence of contaminants in the commercial template precursor was found to be detrimental for electrical properties. A high-purity polyurethane was then formulated, and tailored Ni-YSZ foams were obtained with 87 porosity. The foam microstructure is characterized by a hierarchical architecture, with interconnected networks of Ni and YSZ particles, large pores related to the open cell structure, and a submicron porosity of the structural trabecular network, with a conductivity value of 80 Scm at 700°C.

Original languageEnglish (US)
Pages (from-to)1795-1800
Number of pages6
JournalJournal of the American Ceramic Society
Volume89
Issue number6
DOIs
StatePublished - Jun 1 2006

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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