Electrode performance of a new La0.6Sr0.4Co 0.2Fe0.8O3 coated cathode for molten carbonate fuel cells

Shin Ae Song, Seong Cheol Jang, Jonghee Han, Sung Pil Yoon, Suk Woo Nam, In Hwan Oh, Seong Geun Oh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To improve the cathode performance in molten carbonate fuel cells (MCFCs), Lanthanum Strontium Cobalt Ferrite (La0.6Sr0.4Co 0.2Fe0.8O3, LSCF) of perovskite structure was coated on a porous Ni plate by a vacuum suction method. The electrochemical performance of modified cathode was examined and compared with that of uncoated conventional cathode via single cell operation and electrochemical impedance analysis (EIS). The cell voltage of the single cell using the LSCF coated cathode, measured at 650 °C with current density of 150 mA/cm2 is 0.837 V and it is higher than that of the cell with uncoated conventional cathode, 0.805 V. The higher performance and the lower charge transfer resistance were obtained at 600-700 °C after LSCF coating. The lower activation energy of oxygen reduction reaction was also obtained. The lower activation energy of oxygen reduction reaction after LSCF coating shows that LSCF on lithiated NiO cathode plays a role of catalyst on the oxygen reduction reaction in cathode.

Original languageEnglish
Pages (from-to)19304-19311
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number24
DOIs
Publication statusPublished - 2012 Dec

Keywords

  • High performance
  • LSCF coated cathode
  • Lowering cathode polarization
  • Molten carbonate fuel cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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