%0 Online Multimedia %A Li, Shao-Chun %A Jacobson, Peter %A Zhao, Shu-Lei %A Gong, Xue-Qing %A Diebold, Ulrike %D 2012 %T Trapping Nitric Oxide by Surface Hydroxyls on Rutile TiO2(110) %U https://acs.figshare.com/articles/media/Trapping_Nitric_Oxide_by_Surface_Hydroxyls_on_Rutile_TiO_sub_2_sub_110_/2558011 %R 10.1021/jp209290a.s002 %2 https://acs.figshare.com/ndownloader/files/4201087 %K surface hydroxyl %K Surface Hydroxyls %K room temperature adsorption %K TiO %K oxide surfaces %K Trapping Nitric Oxide %K DFT calculations %K species influence surface chemistry %K STM %K ambient conditions %K XPS %K nitric oxide %K scanning tunneling microscopy %K adsorbate %X Hydroxyls are omnipresent on oxide surfaces under ambient conditions. While they unambiguously play an important role in many catalytic processes, it is not well-understood how these species influence surface chemistry at atomic scale. We investigated the adsorption of nitric oxide (NO) on a hydroxylated rutile TiO2(110) surface with scanning tunneling microscopy (STM), X-ray/ultraviolet photoemission spectroscopy (XPS/UPS), and density functional theory (DFT) calculations. At room temperature adsorption of NO is only possible in the vicinity of a surface hydroxyl, and leads to a change of the local electronic structure. DFT calculations confirm that the surface hydroxyl-induced excess charge is transferred to the NO adsorbate, which results in an electrostatic stabilization of the adsorbate and, consequently, a significantly stronger bonding. %I ACS Publications