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Enhanced Oxygen Reduction Activities of Pt Supported on Nitrogen-Doped Carbon Nanocapsules

Title
Enhanced Oxygen Reduction Activities of Pt Supported on Nitrogen-Doped Carbon Nanocapsules
Author(s)
Shanmugam, SangarajuSanetuntikul, JakkidMomma, ToshiyukiOsaka, Tetsuya
Issued Date
2014-08-10
Citation
Electrochimica Acta, v.137, pp.41 - 48
Type
Article
Author Keywords
ElectrocatalystOxygen reductionNitrogen-doped CarbonFuel cellsPt nanoparticles
Keywords
HIGH-PERFORMANCEMESOPOROUS CARBONCATALYST SUPPORTO-2 REDUCTIONPT-ALLOYELECTROCATALYSTSNANOTUBECOELECTROREDUCTIONDURABILITY
ISSN
0013-4686
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. © 2014 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/3056
DOI
10.1016/j.electacta.2014.05.145
Publisher
Elsevier Ltd
Related Researcher
  • 상가라쥬샨무감 Shanmugam, Sangaraju
  • Research Interests Electrocatalysts for fuel cells; water splitting; metal-air batteries; Polymer electrolyte membranes for fuel cells; flow batteries; Hydrogen generation and utilization
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Appears in Collections:
Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles

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