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

Takashi Itoh; Masaki Uebayashi; Kazuyuki Tohji; Balachandran Jeyadevan

doi:10.5796/electrochemistry.78.157

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

Takashi Itoh, Masaki Uebayashi, Kazuyuki Tohji, Balachandran Jeyadevan

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

3 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 language	English
Pages (from-to)	157-160
Number of pages	4
Journal	Electrochemistry
Volume	78
Issue number	2
DOIs	https://doi.org/10.5796/electrochemistry.78.157
Publication status	Published - 2010 Feb

Keywords

Alternative catalysts
Fe dissolution
Fe-pt nanoparticles
PEFC

ASJC Scopus subject areas

Electrochemistry

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10.5796/electrochemistry.78.157

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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.",

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AU - Itoh, Takashi

AU - Uebayashi, Masaki

AU - Tohji, Kazuyuki

AU - Jeyadevan, Balachandran

PY - 2010/2

Y1 - 2010/2

N2 - 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.

AB - 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.

KW - Alternative catalysts

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KW - PEFC

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

Abstract

Keywords

ASJC Scopus subject areas

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