Journal
CATALYSIS COMMUNICATIONS
Volume 16, Issue 1, Pages 35-38Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2011.08.038
Keywords
Fuel cells; Electrocatalysis; Oxygen-reduction reaction; Carbon nanotube; Phosphorus-doping
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Funding
- New Century Excellent Talents in University of China [NCET-08-0205]
- Fundamental Research Funds for the Central Universities of China [2011ZG0010]
- Guangdong Provincial Natural Science Foundation of China [9251064101020]
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Phosphorus-doped multiwalled carbon nanotubes (MCNTs) were synthesized by the thermolysis and characterized by electron microscopy and microanalysis technique and evaluated with electrochemical methods. The results revealed that carbon nanotube length became shorter, the tube diameters increased and the yield of MCNTs reduced gradually with the increase of the concentration of triphenylphosphine in toluene solution, and the tube diameters increased with the increase of the synthesis temperature. Moreover, the phosphorus doping significantly improved the electrocatalytic activity of carbon nanotubes for the oxygen-reduction reaction in alkaline media, and the carbon nanotubes doped with small amounts of phosphorus exhibited higher electrocatalytic activity and stability than Pt/C catalyst. (C) 2011 Elsevier B.V. All rights reserved.
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