Abstract
Two types of Pt nanoparticle electrocatalysts were composited on Pt nanowires and their electrocatalytic activities for methanol electro-oxidation in direct methanol fuel cells were investigated. The high-resolution transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy results indicate that the metallic Pt nanoparticles with the polycrystalline property are uniformly composited on the electro-spun Pt nanowires. The cyclic voltammetry and chronoamperometry results demonstrate that electrodes containing 40 wt% Pt nanoparticles exhibit the best catalytic activity for methanol electro-oxidation and the highest electrochemical stability among the three samples studied for use in direct methanol fuel cells.
| Original language | English |
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| State | Published - 2011 |
| Event | 18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of Duration: 21 Aug 2011 → 26 Aug 2011 |
Conference
| Conference | 18th International Conference on Composites Materials, ICCM 2011 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Jeju |
| Period | 21/08/11 → 26/08/11 |
Keywords
- Catalytic activity
- Electrospinning
- Fuel cells
- Methanol electro-oxidation
- Nanowires
- Pt catalysts
- Stability