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Synthesis of Platinum Nanoparticles and Then Self-Assembly on Nafion Membrane to Give a Catalyst Coated Membrane
- Source :
- Journal of Chemical Research; July 2005, Vol. 2005 Issue: 7 p449-451, 3p
- Publication Year :
- 2005
-
Abstract
- A catalyst-coated membrane (CCM) for a proton exchange membrane fuel cell (PEMFC) with Pt loading of 2.8 μg/cm2have been prepared by self-assembling charged Pt particles on a sulfonic acid function group, SO3-, on the membrane surface. Proton conductivity of the as-obtained CCM is 0.0932 S/cm. Half-cell polarisation showed that the self-assembled membrane is electrochemical active. Electrochemical characterisation of the self-assembled electrode showed that the Pt-PDDA nanoparticles were electrocatalytic active. The performance of self-assembled MEA with a Pt loading of 2.8 μg/cm2achieved 2.3 mW/cm2. This corresponds to Pt utilisation of 821 W per 1 g Pt. The results demonstrated the feasibility of the formation of monolayered Pt nanoparticle structure on the membrane interface. Such a monolayered structure could offer a powerful tool in fundamental studies of polymer electrolyte systems.
Details
- Language :
- English
- ISSN :
- 17475198 and 20476507
- Volume :
- 2005
- Issue :
- 7
- Database :
- Supplemental Index
- Journal :
- Journal of Chemical Research
- Publication Type :
- Periodical
- Accession number :
- ejs48766830
- Full Text :
- https://doi.org/10.3184/030823405774309104