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

Sangaraju Shanmugam; Jakkid Sanetuntikul; Toshiyuki Momma; Tetsuya Osaka

doi:10.1016/j.electacta.2014.05.145

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
巻	137
DOI	https://doi.org/10.1016/j.electacta.2014.05.145
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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10.1016/j.electacta.2014.05.145

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title = "Enhanced oxygen reduction activities of pt supported on nitrogen-doped carbon nanocapsules",

abstract = "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.",

keywords = "Electrocatalyst, Fuel cells, Nitrogen-doped Carbon, Oxygen reduction, Pt nanoparticles",

author = "Sangaraju Shanmugam and Jakkid Sanetuntikul and Toshiyuki Momma and Tetsuya Osaka",

note = "Funding Information: This work was partly supported by the DGIST R & D Program of the MEST, Korea (14-BD-01) and part of this work was also supported by Grant-in-Aid for Specially Promoted Research by the Establishment of Electrochemical Device Engineering from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.",

year = "2014",

month = aug,

day = "10",

doi = "10.1016/j.electacta.2014.05.145",

language = "English",

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journal = "Electrochimica Acta",

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T1 - Enhanced oxygen reduction activities of pt supported on nitrogen-doped carbon nanocapsules

AU - Shanmugam, Sangaraju

AU - Sanetuntikul, Jakkid

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

N1 - Funding Information: This work was partly supported by the DGIST R & D Program of the MEST, Korea (14-BD-01) and part of this work was also supported by Grant-in-Aid for Specially Promoted Research by the Establishment of Electrochemical Device Engineering from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.

PY - 2014/8/10

Y1 - 2014/8/10

N2 - 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.

AB - 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.

KW - Electrocatalyst

KW - Fuel cells

KW - Nitrogen-doped Carbon

KW - Oxygen reduction

KW - Pt nanoparticles

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DO - 10.1016/j.electacta.2014.05.145

M3 - Article

AN - SCOPUS:84903174004

VL - 137

SP - 41

EP - 48

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -

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

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