Porous carbon supported Fe-N-C for applications as cathodic electrocatalysts in fuel cells

Shou-Heng Liu, Jyun Ren Wu

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The carbons incorporating FeN x electrocatalysts (FeTEPA/C-x) were fabricated via a facile chemical process. The nitrogen-rich species (tetraethylenepentamine) were complexed with iron precursors (FeCl 3 ) on carbon blacks (Vulcan XC-72) and treated under high temperature in a nitrogen atmosphere. These resultant catalysts were characterized by a variety of different spectroscopic and analytical techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) measurements. Experimentally, the electrocatalytic performance of oxygen reduction for FeTEPA/C-2.7, which was found to have an approximate four electron transfer, was observed to be surpassing among all FeTEPA/C-x electrocatalysts. This may be attributed to its unique properties, including the higher nitrogen content, more pyridinic-N sites and probable formation of Fe-N-C active centers which were evidenced by XAS.

Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume170
DOIs
Publication statusPublished - 2013 Jan 14

Fingerprint

electrocatalysts
Electrocatalysts
fuel cells
Fuel cells
X ray absorption spectroscopy
Nitrogen
Carbon
carbon
nitrogen
Soot
absorption spectroscopy
x rays
Carbon black
Iron
X ray photoelectron spectroscopy
Oxygen
X ray diffraction
electron transfer
Catalysts
Electrons

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

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abstract = "The carbons incorporating FeN x electrocatalysts (FeTEPA/C-x) were fabricated via a facile chemical process. The nitrogen-rich species (tetraethylenepentamine) were complexed with iron precursors (FeCl 3 ) on carbon blacks (Vulcan XC-72) and treated under high temperature in a nitrogen atmosphere. These resultant catalysts were characterized by a variety of different spectroscopic and analytical techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) measurements. Experimentally, the electrocatalytic performance of oxygen reduction for FeTEPA/C-2.7, which was found to have an approximate four electron transfer, was observed to be surpassing among all FeTEPA/C-x electrocatalysts. This may be attributed to its unique properties, including the higher nitrogen content, more pyridinic-N sites and probable formation of Fe-N-C active centers which were evidenced by XAS.",
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Porous carbon supported Fe-N-C for applications as cathodic electrocatalysts in fuel cells. / Liu, Shou-Heng; Wu, Jyun Ren.

In: Microporous and Mesoporous Materials, Vol. 170, 14.01.2013, p. 150-154.

Research output: Contribution to journalArticle

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AU - Liu, Shou-Heng

AU - Wu, Jyun Ren

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AB - The carbons incorporating FeN x electrocatalysts (FeTEPA/C-x) were fabricated via a facile chemical process. The nitrogen-rich species (tetraethylenepentamine) were complexed with iron precursors (FeCl 3 ) on carbon blacks (Vulcan XC-72) and treated under high temperature in a nitrogen atmosphere. These resultant catalysts were characterized by a variety of different spectroscopic and analytical techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) measurements. Experimentally, the electrocatalytic performance of oxygen reduction for FeTEPA/C-2.7, which was found to have an approximate four electron transfer, was observed to be surpassing among all FeTEPA/C-x electrocatalysts. This may be attributed to its unique properties, including the higher nitrogen content, more pyridinic-N sites and probable formation of Fe-N-C active centers which were evidenced by XAS.

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