Nitrogen-doped mesoporous carbon hollow spheres as a novel carbon support for oxygen reduction reaction

Chun Han Hsu, Jhan Yi Jan, Hong Ping Lin, Ping Lin Kuo

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Novel nitrogen-doped mesoporous carbon hollow spheres (NMCs) as a catalyst support are prepared using polyaniline as both a carbon and a nitrogen source, where the amount of doped nitrogen is controllable (N/C ratio 7.81-16.83 wt%). The prepared NMCs are characterized via scanning electron microscopy, transmission electron microscopy, conductivity and nitrogen adsorption and desorption isotherms. For fuel cell application, a uniform dispersion of Pt nanoparticles with a diameter of 3.8 ± 1.3 nm is anchored on the surface of the NMCs by ethylene glycol reduction. In a single cell test, the Pt/NMC catalyst is found to have superior catalytic activity to better support the oxygen reduction reaction, resulting in an enhancement of about 19% in mass activity compared with that of the commercial Pt/C catalyst, E-TEK.

Original languageEnglish
Pages (from-to)5521-5526
Number of pages6
JournalNew Journal of Chemistry
Volume38
Issue number11
DOIs
Publication statusPublished - 2014 Nov 1

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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