M.A. Barteau

Center for Catalytic Science and Technology, Department of Chemical Engineering, University of Delaware, Newark DE 19716 

Temperature programmed reaction of cyclohexanone, cyclohexenone and p-benzoquinone. 

Product desorption during 0=CeH4=0 TPD on the reduced TiO2(001) surface  

A small peak at 288.0 eV was also observed and is most likely that of the unperturbed carbonyl of the ketone. Previous results for formaldehyde adsorption at 170 K on fully oxidized TiO2(001) surfaces gave a C(1s) peak at 288.0 [11]. The curve fits of figure 3C (after p-benzoquinone adsorption) gave four peaks centered at 284.5, 286.1, 288.0 and ca. 290.5 eV. These peaks can be tentatively assigned 

The comparison between these three spectra clearly shows that the C-0 region (at 286.1-286.4 eV) is more pronounced in the case of p-benzoquinone (C), since that molecule contains twice the number of carbonyl groups of the other two. 

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I0M.S. Kaba, I.K. Song, and M.A. Barteau, Investigation of Framework and Cation Substitutions in Keggin-type Heteropoly acids Probed by Scanning Tunneling Microscopy and Tunneling Spectroscopy,/ Vac. Sci. Technol. A, 15,1299-1304(1997). 

S. Linic and M. A. Barteau, Journal of the American Chemical Society, 2003,... 

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