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Enhanced Oxygen Reduction Activities of Pt Supported on Nitrogen-Doped Carbon Nanocapsules
- Enhanced Oxygen Reduction Activities of Pt Supported on Nitrogen-Doped Carbon Nanocapsules
- Shanmugam, S[Shanmugam, Sangaraju]; Sanetuntikul, J[Sanetuntikul, Jakkid]; Momma, T[Momma, Toshiyuki]; Osaka, T[Osaka, Tetsuya]
- DGIST Authors
- Shanmugam, S[Shanmugam, Sangaraju]; Sanetuntikul, J[Sanetuntikul, Jakkid]
- Issue Date
- Electrochimica Acta, 137, 41-48
- Article Type
- Acid Electrolytes; Carbon; Commercial Catalyst; Doping (Additives); Electrocatalyst; Electrocatalysts; Electrolytic Reduction; Fuel Cells; High Resolution Transmission Electron Microscopy; Metal Nanoparticles; Nanocapsules; Nitrogen-Doped Carbon; Nitrogen-Doped Carbons; Oxygen Reduction; Oxygen Reduction Reaction; Particles Sizes; Physicochemical Techniques; Platinum; Pt Nanoparticles; Scanning Electron Microscopy; X Ray Diffraction; X Ray Photoelectron Spectroscopy
- 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.
- Elsevier Ltd
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- Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles
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