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

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)5521-5526
頁數6
期刊New Journal of Chemistry
38
發行號11
DOIs
出版狀態Published - 2014 11月 1

All Science Journal Classification (ASJC) codes

  • 催化
  • 化學 (全部)
  • 材料化學

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