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A symmetrical solid oxide fuel cell prepared by dry-pressing and impregnating methods

  • Harbin Institute of Technology
  • CAS - International Center for Material Physics

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a simple and cost-effective dry-pressing method has been used to fabricate a symmetrical solid oxide fuel cell (SOFC) where the dense yttria-stabilized zirconia (YSZ) electrolyte film is sandwiched between two symmetrical porous YSZ layers in which La0.75Sr0.25Cr 0.5Mn0.5O3-δ (LSCM) based anode and cathode are incorporated using wet impregnation techniques. The maximum power densities (Pmax) of a single cell with 32 wt.% LSCM impregnated YSZ anode and cathode reach 333 and 265 mW cm-2 at 900 °C in dry H2 and CH4, respectively. The cell performance is further improved with additional impregnation of a small amount of Sm-doped CeO 2 (SDC) or Ni. When 6 wt.% Ni as catalyst is added to both the anode and cathode, Pmax values of 559 and 547 mW cm-2 can be achieved, which are better than with SDC. The effect of Ni on the cathode performance is also investigated by impedance spectra analysis.

Original languageEnglish
Pages (from-to)729-733
Number of pages5
JournalJournal of Power Sources
Volume196
Issue number2
DOIs
StatePublished - 15 Jan 2011

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Dry-pressing
  • Nickel/ceria catalyst
  • Perovskite oxide
  • Symmetrical solid oxide fuel cells
  • Wet impregnation

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