Inhibition of the dissolution of Fe from Fe-Pt nano particles by a structural phase transitions

Takashi Itoh, Masaki Uebayashi, Kazuyuki Tohji, Balachandran Jeyadevan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Fe-Pt nanoparticles fabricated by the polyol process have been reported as a possible alternative material for use in catalytic electrodes for polymer electrolyte fuel cells (PEFCs). Catalytic Fe-Pt alloys suffer from a problem where Fe dissolves from the alloy. Here, we examined the dissolution of Fe into the electrolyte for various composition ratios of Fe to Pt We have also described the characteristics of Fe-Pt nanoparticles on the basis of XRD, XRF, TEM-EDX and electrochemical measurements and have discussed the rinse effect of Fe-Pt nanoparticles in acid solutions and the annealing effect of Fe-Pt caused by structural phase transitions from disordered fee to ordered fct phase structures.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalElectrochemistry
Volume78
Issue number2
DOIs
Publication statusPublished - 2010 Feb

Keywords

  • Alternative catalysts
  • Fe dissolution
  • Fe-pt nanoparticles
  • PEFC

ASJC Scopus subject areas

  • Electrochemistry

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