Synthesis of the nitrogen-doped carbon nanotube (NCNT) bouquets and their electrochemical properties

• The NCNT bouquets have been synthesized by using ion-exchange resin.
• The nitrogen is in situ doped into NCNTs bouquets.
• Pt on NCNTs bouquets show better oxygen reduction performance compared with Pt/C.

The nitrogen-doped carbon nanotube (NCNT) bouquets have been synthesized by the pyrolysis of nitrogen-containing ion-exchange resin. The material shows excellent oxygen reduction performance after being supported by the Pt nanoparticles (Pt/NCNTs) compared with commercial Pt/C (46.7 wt.% Pt, TKK, Japan) in terms of the onset potential, half-wave potential, mass activity and durability. The better ORR performance of the Pt/NCNTs indicates potential applications in PEMCs.

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