Plasmon Mediated Oxidation of Aromatic Alcohols Using Light Emitting Diodes and Photochemically Generated Supported Au Nanoparticles

G.L. HALLETT-TAPLEY ; J. SILVERO; M. GONZÁLEZ- BÉJAR; J.C. NETTO-FERREIRA ; J.C. SCAIANO

Simposio; 38TH PHYSICAL ORGANIC MINI SYMPOSIUM; 2010

Abstract Preview of ´Alcohol Oxidation Supported AuNP´ This is a summary of your 38th POMS webHermes abstract. Once you have verified that it is correct you should print a copy for your records. Prepared by Geniece Hallett-Tapley geniece@photo.chem.uottawa.ca Preferred Presentation Poster Preview of your webHermes Abstract. Plasmon Mediated Oxidation of Aromatic Alcohols Using Light Emitting Diodes and Photochemically Generated Supported Au Nanoparticles G.L. Hallett-Tapley  , J. Silvero, M. González- Béjar, J.C. Netto-Ferreira and J.C. Scaiano Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa K1N 6N5, Canada Supported Au nanoparticles (AuNP) have gained considerable recognition as environmentally friendly catalysts which can be developed at minimal costs and have been shown to catalyze various organic reactions (such as alcohol oxidations) as effectively or better than the harsh chemicals currently used. Previous work on Au catalyzed alcohol oxidations has focused on the use of thermal bench top methods.1 In this work, Plasmon Mediated Catalysis (PMC) is exploited, whereby excitation of the surface plasmon band of the AuNP (kmax = 520 nm) using 4, 530 nm light emitting diodes (LEDs) results in a highly efficient conversion of light to heat on the nanoparticle surface (photothermal effect). Au supported on hydrotalcite (HT), TiO2 P25, and c-Al2O3 have been successfully used in the oxidation of sec-phenethyl, benzyl and cinnamyl alcohols (Scheme 1) in the presence of H2O2 and in the absence of a solvent. 1. Mitsudome, T.; Noujima, A.; Mizugaki, T.; Jitsukawa, K.; Kaneda, K. Adv. Synth. Catal. 2009, 351, 1890-1896. No text (if any) below this line will be printed in the abstract book.