Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 14, Issue 9, Pages 7027-7031Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2014.8971
Keywords
N-Doping; Carbon; Catalyst; PEM Fuel Cell; Electrochemical Durability
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51372186]
- National Basic Research Development Program of China (973 Program) [2012CB215500]
- NSFC [50972112]
- WUT [2012-YB-05]
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Carbon nanospheres is wildly used to support noble metal nanocatalysts in proton exchange membrane (PEM) fuel cells, however they show a low resistance to electrochemical corrosion. In this study, the N-doped treatment of carbon nanospheres (Vulcan XC-72) is carried out in ammonia gas. The effect of heating treatment (up to 1000 degrees C) on resistances to electrochemical oxidation of the N-doped carbon nanospheres (HNC) is investigated. The resistance to electrochemical oxidation of carbon supports and stability of the catalysts are investigated with potentiostatic oxidation and accelerated durability test by simulating PEM fuel cell environment. The HNC exhibit a higher resistance to electrochemical oxidation than traditional Vulcan XC-72. The results show that the N-doped carbon nanospheres have a great potential application in REM fuel cells.
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