Presentation 2013-12-17
Analysis of effective nitrogen chemical species in oxygen reduction catalysts made from iron cobalt complexes with pyridyl ligands as precursors
Masakuni TAKAHASHI, Hidenobu SHIROISHI, Morihiro SAITO, Yumi TANAKA,
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Abstract(in English) Non-platinum oxygen reduction catalysts made from iron cobalt complexes with pyridyl ligands as precursors supported on multi-wall carbon nanotubes were synthesized by heat treatment with ammonia atmospheres. The mechanism of oxygen reduction for the catalysts was investigated by X-ray photoelectron spectroscopy and a rotating ring disk electrode method. The correlation coefficients between effective nitrogen chemical species on the surface of the oxygen reduction catalysts and cathodic current derived from oxygen reduction reaction or 4-electron reduction efficiency were estimated at each potential. It is clarified that the effective nitrogen chemical species depend on the kinds of ligands used in the precursors. The quaternary-type nitrogen species was effective when using 1, 10-phenanthroline as ligands, whereas the pyridine-type nitrogen species was effective when using 2,2'-bipyridine as ligands.
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Keyword(in English) Fuel cell / Oxygen reduction / Non-precious metal catalyst / Effective nitrogen species
Paper # OME2013-78
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Committee OME
Conference Date 2013/12/10(1days)
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Registration To Organic Material Electronics (OME)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Analysis of effective nitrogen chemical species in oxygen reduction catalysts made from iron cobalt complexes with pyridyl ligands as precursors
Sub Title (in English)
Keyword(1) Fuel cell
Keyword(2) Oxygen reduction
Keyword(3) Non-precious metal catalyst
Keyword(4) Effective nitrogen species
1st Author's Name Masakuni TAKAHASHI
1st Author's Affiliation Tokyo National College of Technology()
2nd Author's Name Hidenobu SHIROISHI
2nd Author's Affiliation Tokyo National College of Technology
3rd Author's Name Morihiro SAITO
3rd Author's Affiliation Tokyo University of Agriculture & Technology
4th Author's Name Yumi TANAKA
4th Author's Affiliation Tokyo University of Science
Date 2013-12-17
Paper # OME2013-78
Volume (vol) vol.113
Number (no) 358
Page pp.pp.-
#Pages 6
Date of Issue