COLL 76 |
| Rene J. LeBlanc, Ivelisse Ortiz-Hernandez, Michael R. Strunk, and Christopher T. Williams. Department of Chemical Engineering, University of South Carolina, Swearingen Engineering Center, Columbia, SC 29208 |
| The application of in-situ vibrational spectroscopy to the study of solid-liquid catalytic interfaces is providing previously unavailable information regarding the surface chemistry of such systems. In this talk, the techniques of surface-enhanced Raman spectroscopy (SERS), attenuated total reflection infrared spectroscopy (ATR-IRS), and sum-frequency spectroscopy (SFS) will be discussed. Two specific examples from our laboratory will be used to highlight the utility of these approaches. The first involves the adsorption of a chiral modifier cinchonidine onto platinum for the enantioselective hydrogenation of C=O bonds. The second involves the interaction of aliphatic nitriles with both metal and oxide surfaces used in heterogeneous nitrile hydrogenation. In both cases, in-situ measurements have provided new insight into the surface environment present under reaction conditions. The prospects and challenges of using these approaches in the future for other solid-catalyzed liquid-phase reactions will be discussed. |
|
Electrochemistry and Surface Science Symposium in Memory of Mike Weaver
Division of Colloid and Surface Chemistry |