I&EC 150 |
| In recent years, the focus of catalysis research has shifted from increasing activity to achieving 100% selectivity, as well as to performing reactions using “greener” processes. One area of particular interest is the chemoselective hydrogenation of carbonyl (C=O) bonds in unsaturated ketones, a reaction lying at the heart of various chemical industries. Our efforts in this research area take advantage of colloidal platinum nanoparticles synthesized in the 1-10 nm size range using solution-based methods that allow for fine control over particle sizes. These platinum nanocatalysts are then used in the hydrogenation of selected ketones in the “green” solvent water, which reduces the use of harmful organic solvents for the reaction. Through measurement of turnover rates we are connecting reaction selectivity with catalyst properties (particle size) and reaction conditions (temperature, pressure, and reactant concentrations). By combining this knowledge together, we hope to enhance environmentally-friendly and efficient routes for manufacturing desired chemical commodities. |
|
Nanotechnology and the Environment: Emphasis on Green Nanotechnology
8:30 AM-12:30 PM, Thursday, April 10, 2008 Morial Convention Center -- Rm. 231, Oral
Division of Industrial & Engineering Chemistry |