Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10267000 | Electrochemistry Communications | 2005 | 6 Pages |
Abstract
A novel structured membrane-electrode-assembly (MEA) of polymer electrolyte fuel cells (PEFC) has been successfully fabricated by the electrostatic self-assembly between the positively charged Pt-poly(diallyldimethylammonium chloride) (Pt-PDDA) nanoparticles and the sulfonic acid group, SO3-, at the Nafion membrane surface. The Pt loading of the self-assembled MEA was 2.8 μg cmâ2 and the power density achieved was 2.3 mW cmâ2 under H2/O2 at room temperature. This corresponds to a power output of 821 W per 1 g of Pt. The results indicate that the charged Pt-PDDA nanoparticles most likely formed a monolayer on the Nafion surface and such self-assembly monolayer structure could be very useful in the development of PEFC with controlled interface.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Mu Pan, Hao Lin Tang, San Ping Jiang, Zengcai Liu,