TiO2-coated Ni powder as a new cathode material for molten carbonate fuel cells

Ming Zi Hong, Hyun Suk Lee, Min Hyuk Kim, Eun Joo Park, Hyung Wook Ha, Keon Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The properties of a new cathode material of nano-sized TiO2-coated Ni powder for application in molten carbonate fuel cells (MCFCs) are investigated. The material is prepared by a sol-gel method. X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM) with energy dispersive X-ray analysis (EDAX), transmission electron microscopy (TEM) and Raman spectroscopy are employed to characterize the cathode material. The nano-sized TiO2 particles are homogenously coated on the surface of the Ni powder. A stable LiTi1-xNixO2 phase is formed on the surface of the Ni powder during immersion in molten carbonate at 650 °C. The solubility of the TiO2-coated Ni cathode is about 50% lower compare with that of a pure Ni cathode.

Original languageEnglish
Pages (from-to)158-165
Number of pages8
JournalJournal of Power Sources
Volume156
Issue number2
DOIs
Publication statusPublished - 2006 Jun 1

Keywords

  • LiTiNiO
  • Molten carbonate fuel cell
  • Sol-gel method
  • Solubility
  • TiO-coated nickel cathode

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

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