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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

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.

Original language	English
Pages (from-to)	41-48
Number of pages	8
Journal	Electrochimica Acta
Volume	137
DOIs	https://doi.org/10.1016/j.electacta.2014.05.145
Publication status	Published - 2014 Aug 10

Keywords

Electrocatalyst
Fuel cells
Nitrogen-doped Carbon
Oxygen reduction
Pt nanoparticles

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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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,

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

language = "English",

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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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JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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