This proposal is a continuation of RB1000003 and RB1110113. The aim of the present experiment is to gain further insight into the mechanism of benzyl alcohol oxidation using supported Au-Pd nanoparticles. Two reactions occur: oxidation to benzaldehyde and disproportionation to benzaldehyde and toluene. Very recently, we have found that Au-Pd supported on ZnO completely switches off the disporportionation reaction, thus toluene formation is prevented and allows us to study each reaction in isolation. In the previous work, we were able to observe adsorbed species on 1%AuPd/ZnO but were unable to do so on 1%AuPd/TiO2 because the temperature of the catalyst was high enough to induce reaction. In this proposal we will use an improved dosing procedure that will allow us to see the initial state of the benzyl alcohol.