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 | |
| Publication status | Published - 2014 Aug 10 |
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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 journal › Article
}
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 -