COLL 135 |
| Metal nanoparticles are of fundamental interest and technological importance due to their special electronic, catalytic and optical properties. In this study, PDDA stabilized Au and Pt nanoparticles and polyoxometalates were used to form hybrid thin films on glassy carbon substrates using layer-by-layer (LbL) assembly. These modified electrodes were employed as cathodes for the oxygen reduction reaction (ORR). The influence of film thickness, metal nanoparticle (Au or Pt) and polyoxometalate (transition metal substitution) on the kinetics of the ORR will be discussed. The films formed by LbL assembly are very stable and are very promising materials for a wide variety of applications. |
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Electrochemistry-Enabled Nano S&T
2:00 PM-5:00 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. 227, Oral
Division of Colloid & Surface Chemistry |