Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 37, Pages 15448-15453Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02427c
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Funding
- Major International (Regional) Joint Research Project [51210002]
- National Natural Science Foundation of China
- Guangdong Province [U1034003]
- National Natural Science Foundation of China [21073241, 21201058]
- Australian Research Council [DP120102325, DP120104932]
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A nitrogen and phosphorus-dual-doped carbon nanotube (N, P-CNT) array has been successfully synthesized by a novel one-pot method, using an aminophosphonic acid resin as the N, P and C sources. The N, P-CNTs are open with large inner channels, allowing oxygen molecules to access a large number of catalytically active sites on the inner walls. The N, P-CNTs are not only comparable to Pt/C in electrocatalytic activity for the oxygen reduction reaction (ORR) in 0.1 M KOH, but are also highly stable and tolerant to methanol and CO poisoning. An onset potential of 0.95 V close to that of Pt/C and a well-defined limiting current plateau for the ORR are observed. Moreover, there is almost no visible current density decrease on N, P-CNTs after 5000 cycles.
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