INOR Stephen Koch, Nora Radu  Monday, April 08, 2013 

514 - Tethered catalysts: Self-assembled monolayers of phosphonates as a platform for heterogeneous catalysis

Karmel James, Eric Johnson, Sarah Almahdali, Katherine N. Crowder, ncrowder@umw.edu. Department of Chemistry, University of Mary Washington, Fredericksburg, Virginia 22401, United States

Phosphonic acids can be used to modify bulk metal oxide surfaces through reaction with the native oxide layer, which results in comprehensive coverage of the metal surface by the phosphonate compound. Through selection of the terminal functional group of the phosphonic acid, various synthetic pathways are available to derivatize the surface with a desired catalyst. Covalently binding the catalyst directly to the electrode surface is a viable method for increasing catalytic efficiency, and the use of a heterogeneous system eliminates the need for timely and costly recovery of the catalyst from a reaction solution. Synthetic routes to functionalized metal surfaces will be presented. The sequential surface modification reactions are confirmed by specular reflectance infrared spectroscopy; surface coverage by the various phosphonate monolayers and catalysts are quantitatively determined via quartz crystal microgravimetry.


Monday, April 8, 2013 03:25 PM
Undergraduate Research at the Frontiers of Inorganic Chemistry (02:45 PM - 05:05 PM)
Location: Morial Convention Center
Room: 337

 

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