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

Shou Heng Liu, Jyun Ren Wu

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

The carbons incorporating FeNx electrocatalysts (FeTEPA/C-x) were fabricated via a facile chemical process. The nitrogen-rich species (tetraethylenepentamine) were complexed with iron precursors (FeCl3) 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.

原文English
頁(從 - 到)150-154
頁數5
期刊Microporous and Mesoporous Materials
170
DOIs
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學

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