Preparation of a tetraphenylporphyrinatocobalt(II)-poly(3,4-azopyridylene) complex and its oxygen enrichment effect at an oxygen electrode

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Abstract

The reversible oxygen-binding properties of tetraphenylporphyrinatocobalt(II) (CoTPP) complexed with poly(3,4-azopyridylene) (PAP) were established. The CoTPP complexes functioned as oxygen carriers at the surface of a cathode to enhance the current for the reduction of oxygen. PAP was synthesized by the oxidative polymerization of 3,4-diaminopyridine in a DMF solution at 25 °C using a Cu/pyridine catalyst. The combination of the CoTPP complex and the conventional Pt/C catalyst resulted in a significant increase in the steady-state current for the four-electron reduction of O 2, particularly at small overpotentials where typical fuel cells operate, based on the facilitated transport of O2 from the atmosphere to the catalyst at the electrode surface.

Original languageEnglish
Pages (from-to)3308-3311
Number of pages4
JournalJournal of Materials Chemistry
Volume14
Issue number22
DOIs
Publication statusPublished - 2004 Nov 21

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Oxygen
catalysts
preparation
Electrodes
Catalysts
electrodes
oxygen
Pyridine
fuel cells
Fuel cells
pyridines
Cathodes
polymerization
cathodes
Polymerization
atmospheres
Electrons
electrons
3,4-diaminopyridine
pyridine

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Materials Science(all)

Cite this

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title = "Preparation of a tetraphenylporphyrinatocobalt(II)-poly(3,4-azopyridylene) complex and its oxygen enrichment effect at an oxygen electrode",
abstract = "The reversible oxygen-binding properties of tetraphenylporphyrinatocobalt(II) (CoTPP) complexed with poly(3,4-azopyridylene) (PAP) were established. The CoTPP complexes functioned as oxygen carriers at the surface of a cathode to enhance the current for the reduction of oxygen. PAP was synthesized by the oxidative polymerization of 3,4-diaminopyridine in a DMF solution at 25 °C using a Cu/pyridine catalyst. The combination of the CoTPP complex and the conventional Pt/C catalyst resulted in a significant increase in the steady-state current for the four-electron reduction of O 2, particularly at small overpotentials where typical fuel cells operate, based on the facilitated transport of O2 from the atmosphere to the catalyst at the electrode surface.",
author = "Baoqing Shentu and Kenichi Oyaizu and Hiroyuki Nishide",
year = "2004",
month = "11",
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doi = "10.1039/b405992a",
language = "English",
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journal = "Journal of Materials Chemistry",
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publisher = "Royal Society of Chemistry",
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T1 - Preparation of a tetraphenylporphyrinatocobalt(II)-poly(3,4-azopyridylene) complex and its oxygen enrichment effect at an oxygen electrode

AU - Shentu, Baoqing

AU - Oyaizu, Kenichi

AU - Nishide, Hiroyuki

PY - 2004/11/21

Y1 - 2004/11/21

N2 - The reversible oxygen-binding properties of tetraphenylporphyrinatocobalt(II) (CoTPP) complexed with poly(3,4-azopyridylene) (PAP) were established. The CoTPP complexes functioned as oxygen carriers at the surface of a cathode to enhance the current for the reduction of oxygen. PAP was synthesized by the oxidative polymerization of 3,4-diaminopyridine in a DMF solution at 25 °C using a Cu/pyridine catalyst. The combination of the CoTPP complex and the conventional Pt/C catalyst resulted in a significant increase in the steady-state current for the four-electron reduction of O 2, particularly at small overpotentials where typical fuel cells operate, based on the facilitated transport of O2 from the atmosphere to the catalyst at the electrode surface.

AB - The reversible oxygen-binding properties of tetraphenylporphyrinatocobalt(II) (CoTPP) complexed with poly(3,4-azopyridylene) (PAP) were established. The CoTPP complexes functioned as oxygen carriers at the surface of a cathode to enhance the current for the reduction of oxygen. PAP was synthesized by the oxidative polymerization of 3,4-diaminopyridine in a DMF solution at 25 °C using a Cu/pyridine catalyst. The combination of the CoTPP complex and the conventional Pt/C catalyst resulted in a significant increase in the steady-state current for the four-electron reduction of O 2, particularly at small overpotentials where typical fuel cells operate, based on the facilitated transport of O2 from the atmosphere to the catalyst at the electrode surface.

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