Abstract
Significant enhancement in the electrocatalytic activity of Pt particles toward oxygen reduction reaction (ORR) has been achieved by depositing them on a single wall carbon nanotubes (SWCNT) support. Compared to a commercial Pt/carbon black catalyst, Pt/SWCNT films cast on a rotating disk electrode exhibit a lower onset potential and a higher electron-transfer rate constant for oxygen reduction. Improved stability of the SWCNT support is also confirmed from the minimal change in the oxygen reduction current during repeated cycling over a period of 36 h. These studies open up ways to utilize SWCNT/Pt electrocatalyst as a cathode in the proton-exchange-membrane-based hydrogen and methanol fuel cells.
Keywords
ElectrocatalystCatalysisCarbon nanotubeProton exchange membrane fuel cellCarbon blackMethanolPlatinumOxygenCarbon fibersCathodeChemical engineeringNanoparticleInorganic chemistryMaterials scienceChemistryReversible hydrogen electrodeOxygen reduction reactionElectrodeNanotechnologyElectrochemistryWorking electrodeOrganic chemistryComposite materialPhysical chemistry
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Publication Info
- Year
- 2006
- Type
- article
- Volume
- 22
- Issue
- 5
- Pages
- 2392-2396
- Citations
- 302
- Access
- Closed
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Cite This
Anusorn Kongkanand,
Susumu Kuwabata,
G. Girishkumar
et al.
(2006).
Single-Wall Carbon Nanotubes Supported Platinum Nanoparticles with Improved Electrocatalytic Activity for Oxygen Reduction Reaction.
Langmuir
, 22
(5)
, 2392-2396.
https://doi.org/10.1021/la052753a
Identifiers
- DOI
- 10.1021/la052753a