منابع مشابه
Hydrogen Impurity Defects in Rutile TiO2
Hydrogen-related defects play crucial roles in determining physical properties of their host oxides. In this work, we report our systematic experimental and theoretical (based on density functional theory) studies of the defect states formed in hydrogenated-rutile TiO2 in gaseous H2 and atomic H. In gas-hydrogenated TiO2, the incorporated hydrogen tends to occupy the oxygen vacancy site and neg...
متن کاملImaging of the hydrogen subsurface site in rutile TiO2.
From an interplay between simultaneously recorded noncontact atomic force microscopy and scanning tunneling microscopy images and simulations based on density functional theory, we reveal the location of single hydrogen species in the surface and subsurface layers of rutile TiO2. Subsurface hydrogen atoms (H(sub)) are found to reside in a stable interstitial site as subsurface OH groups detecta...
متن کاملIntrinsic diffusion of hydrogen on rutile TiO2(110).
The combined experimental and theoretical study of intrinsic hydrogen diffusion on bridge-bonded oxygen (BBO) rows of TiO 2(110) is presented. Sequences of isothermal scanning tunneling microscopy images demonstrate a complex behavior of hydrogen formed by water dissociation on BBO vacancies. Different diffusion rates are observed for the two hydrogens in the original geminate OH pair suggestin...
متن کاملComment on "Imaging of the hydrogen subsurface site in rutile TiO2".
Please cite the original version: Enevoldsen, Georg H. & Pinto, Henry P. & Foster, Adam S. & Jensen, Mona C. R. & Hofer, Werner A. & Hammer, Bjørk & Lauritsen, Jeppe V. & Besenbacher, Flemming. 2010. Reply to the comment on "Imaging of the Hydrogen Subsurface Site in Rutile TiO2''. Physical Review Letters. Volume 104, Issue 11. 119604/1. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.104.11...
متن کاملAcetone Chemistry On Oxidized Rutile TiO2(110)
Surface defects are known to dominate both the electronic and chemical properties of metal oxide surfaces, an object of much study for use in catalytic processes. In order to study surface chemistry in detail, an ultra-high vacuum (UHV) chamber was designed to combine a LEED and STM system. Construction is underway, with a reported initial base pressure of 10−9 Torr revealing no major leaks. On...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2017
ISSN: 2045-2322
DOI: 10.1038/s41598-017-16660-3