Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

Makoto Yuasa; Kenichi Oyaizu; Hidenori Murata; Mizuki Kitao; Kenji Fujita

doi:10.1295/koron.63.607

Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

Makoto Yuasa^*, Kenichi Oyaizu, Hidenori Murata, Mizuki Kitao, Kenji Fujita

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

meso-Substituted cobalt and Interface Science, Tokyo University of Science (Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan) phyrin and various carbon materials. These electrocatalysts gave rise to electroreduction of O₂ at a remarkably positive potential (E_p= 0.44 V versus saturated calomel electrode (SCE) and showed a high selectivity for the four-electron reduction (n=3.9). The catalyst heat-treated at 600°C showed higher potential (E_p=0.44 V vs. SCE). Electrochemical study and X-ray photo spectroscopy (XPS) analysis revealed that the adsorbed amount of cobalt-porphyrin molecules caused highly effective catalysts for electroreduction of O₂.

Original language	English
Pages (from-to)	607-612
Number of pages	6
Journal	KOBUNSHI RONBUNSHU
Volume	63
Issue number	9
DOIs	https://doi.org/10.1295/koron.63.607
Publication status	Published - 2006 Sept
Externally published	Yes

Keywords

Electrocatalyst
Heat-treatment
Oxygen reduction
Porphyrin complex

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Materials Science (miscellaneous)
Environmental Science(all)
Polymers and Plastics

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10.1295/koron.63.607

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title = "Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells",

abstract = "meso-Substituted cobalt and Interface Science, Tokyo University of Science (Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan) phyrin and various carbon materials. These electrocatalysts gave rise to electroreduction of O2 at a remarkably positive potential (Ep= 0.44 V versus saturated calomel electrode (SCE) and showed a high selectivity for the four-electron reduction (n=3.9). The catalyst heat-treated at 600°C showed higher potential (Ep=0.44 V vs. SCE). Electrochemical study and X-ray photo spectroscopy (XPS) analysis revealed that the adsorbed amount of cobalt-porphyrin molecules caused highly effective catalysts for electroreduction of O2.",

keywords = "Electrocatalyst, Heat-treatment, Oxygen reduction, Porphyrin complex",

author = "Makoto Yuasa and Kenichi Oyaizu and Hidenori Murata and Mizuki Kitao and Kenji Fujita",

year = "2006",

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doi = "10.1295/koron.63.607",

language = "English",

volume = "63",

pages = "607--612",

journal = "Kobunshi Ronbunshu",

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TY - JOUR

T1 - Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

AU - Yuasa, Makoto

AU - Oyaizu, Kenichi

AU - Murata, Hidenori

AU - Kitao, Mizuki

AU - Fujita, Kenji

PY - 2006/9

Y1 - 2006/9

N2 - meso-Substituted cobalt and Interface Science, Tokyo University of Science (Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan) phyrin and various carbon materials. These electrocatalysts gave rise to electroreduction of O2 at a remarkably positive potential (Ep= 0.44 V versus saturated calomel electrode (SCE) and showed a high selectivity for the four-electron reduction (n=3.9). The catalyst heat-treated at 600°C showed higher potential (Ep=0.44 V vs. SCE). Electrochemical study and X-ray photo spectroscopy (XPS) analysis revealed that the adsorbed amount of cobalt-porphyrin molecules caused highly effective catalysts for electroreduction of O2.

AB - meso-Substituted cobalt and Interface Science, Tokyo University of Science (Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan) phyrin and various carbon materials. These electrocatalysts gave rise to electroreduction of O2 at a remarkably positive potential (Ep= 0.44 V versus saturated calomel electrode (SCE) and showed a high selectivity for the four-electron reduction (n=3.9). The catalyst heat-treated at 600°C showed higher potential (Ep=0.44 V vs. SCE). Electrochemical study and X-ray photo spectroscopy (XPS) analysis revealed that the adsorbed amount of cobalt-porphyrin molecules caused highly effective catalysts for electroreduction of O2.

KW - Electrocatalyst

KW - Heat-treatment

KW - Oxygen reduction

KW - Porphyrin complex

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IS - 9

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Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

Abstract

Keywords

ASJC Scopus subject areas

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