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

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

*この研究の対応する著者

研究成果査読

18 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)41-48
ページ数8
ジャーナルElectrochimica Acta
137
DOI
出版ステータスPublished - 2014 8 10

ASJC Scopus subject areas

  • 化学工学(全般)
  • 電気化学

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