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

Sangaraju Shanmugam, Jakkid Sanetuntikul, Toshiyuki Momma, Tetsuya Osaka

Research output: Contribution to journalArticle

16 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 languageEnglish
Pages (from-to)41-48
Number of pages8
JournalElectrochimica Acta
Volume137
DOIs
Publication statusPublished - 2014 Aug 10

Fingerprint

Nanocapsules
Nitrogen
Carbon
Oxygen
Catalysts
Electron microscopes
High resolution transmission electron microscopy
Catalyst supports
Electrolytes
X ray photoelectron spectroscopy
Particle size
Nanoparticles
Scanning
X ray diffraction
Acids

Keywords

  • Electrocatalyst
  • Fuel cells
  • Nitrogen-doped Carbon
  • Oxygen reduction
  • Pt nanoparticles

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

Enhanced oxygen reduction activities of pt supported on nitrogen-doped carbon nanocapsules. / Shanmugam, Sangaraju; Sanetuntikul, Jakkid; Momma, Toshiyuki; Osaka, Tetsuya.

In: Electrochimica Acta, Vol. 137, 10.08.2014, p. 41-48.

Research output: Contribution to journalArticle

@article{703708e29b9d4c909aa24a3d3b02e62c,
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",
year = "2014",
month = "8",
day = "10",
doi = "10.1016/j.electacta.2014.05.145",
language = "English",
volume = "137",
pages = "41--48",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

}

TY - JOUR

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

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

UR - http://www.scopus.com/inward/record.url?scp=84903174004&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903174004&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2014.05.145

DO - 10.1016/j.electacta.2014.05.145

M3 - Article

VL - 137

SP - 41

EP - 48

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -