Electrochemical performance of a Ni and YSZ composite synthesised by ultrasonic spray pyrolysis as an anode for SOFCs

H. J. Park, Z. Shao, W. Wang, K. S. Moon

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The electrochemical performance of an anode material for a solid oxide fuel cell (SOFC) depends highly on microstructure in addition to composition. In this study, a NiO-yttria-stabilised zirconia (NiO-YSZ) composite with a highly dispersed microstructure and large pore volume/surface area has been synthesised by ultrasonic spray pyrolysis (USP) and its electrochemical characteristics has been investigated. For comparison, the electrochemical performance of a conventional NiO-YSZ is also evaluated. The power density of the zirconia electrolyte-supported SOFC with the synthesised anode is ∼392mWcm -2 at 900°C and that of the SOFC with the conventional NiO-YSZ anode is ∼315mWcm-2. The improvement is ∼24%. This result demonstrates that the synthesised NiO-YSZ is a potential alternative anode material for SOFCs fabricated with a zirconia solid electrolyte.

Original languageEnglish
Pages (from-to)654-660
Number of pages7
JournalFuel Cells
Volume11
Issue number5
DOIs
StatePublished - Oct 2011

Keywords

  • Anode
  • Nanocomposite
  • Ni-YSZ
  • Power Density
  • Solid Oxide Fuel Cell
  • Ultrasonic Spray Pyrolysis

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