Department of Energy Science and Engineering
Advanced Energy Materials Laboratory
1. Journal Articles
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, Sangaraju ; Sanetuntikul, Jakkid ; Momma, Toshiyuki ; Osaka, Tetsuya
- Issued Date
- 2014-08-10
- Citation
- Electrochimica Acta, v.137, pp.41 - 48
- Type
- Article
- Author Keywords
- Electrocatalyst ; Oxygen reduction ; Nitrogen-doped Carbon ; Fuel cells ; Pt nanoparticles
- Keywords
- HIGH-PERFORMANCE ; MESOPOROUS CARBON ; CATALYST SUPPORT ; O-2 REDUCTION ; PT-ALLOY ; ELECTROCATALYSTS ; NANOTUBE ; CO ; ELECTROREDUCTION ; DURABILITY
- 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.
- Publisher
- Elsevier Ltd
- Related Researcher
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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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- Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles
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