Enhanced oxygen reduction activities of pt supported on nitrogen-doped carbon nanocapsules

Sangaraju Shanmugam*, Jakkid Sanetuntikul, Toshiyuki Momma, Tetsuya Osaka


研究成果: Article査読

18 被引用数 (Scopus)


The nitrogen-doped carbon nanocapsules (NCNCs) were explored as catalyst support for oxygen reduction reaction (ORR) in acid electrolyte. The deposition of Pt particles on NCNCs support was characterized using various physico-chemical techniques, such as scanning electron microscope, transmission electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy. The high resolution transmission electron microscopy reveals that Pt particles are uniformly dispersed onto the NCNCs and particles size of about 2.2 nm was observed. The electrochemical ORR activities of the Pt supported on NCNCs catalysts were studied and compared with a commercial catalyst. Pt/NCNC showed enhanced ORR activity and better stability than a commercial Pt/C catalyst. The enhanced performance of Pt supported NCNCs can be attributed to the better dispersion and utilization of Pt nanoparticles.

ジャーナルElectrochimica Acta
出版ステータスPublished - 2014 8月 10

ASJC Scopus subject areas

  • 化学工学一般
  • 電気化学


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