TY - JOUR
T1 - Porous carbon supported Fe-N-C for applications as cathodic electrocatalysts in fuel cells
AU - Liu, Shou Heng
AU - Wu, Jyun Ren
N1 - Funding Information:
The financial support of the Taiwan National Science Council is gratefully acknowledged.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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U2 - 10.1016/j.micromeso.2012.12.003
DO - 10.1016/j.micromeso.2012.12.003
M3 - Article
AN - SCOPUS:84872092919
SN - 1387-1811
VL - 170
SP - 150
EP - 154
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
ER -