منابع مشابه
Surface Structure of TiO2 Rutile (011) Exposed to Liquid Water
The rutile TiO2(011) surface exhibits a (2 × 1) reconstruction when prepared by standard techniques in ultrahigh vacuum (UHV). Here we report that a restructuring occurs upon exposing the surface to liquid water at room temperature. The experiment was performed in a dedicated UHV system, equipped for direct and clean transfer of samples between UHV and liquid environment. After exposure to liqu...
متن کاملThe effects of antimony doping on the surface structure of rutile TiO2(110).
Titanium dioxide represents a very important wide bandgap photocatalyst that is known to be sensitized to visible light by transition metal doping. Antimony doping has been demonstrated to provide photocatalytic activity when codoped with chromium at an optimum dopant ratio [Sb]/[Cr] of about 1.5. Here, the role of antimony doping on the surface structure of rutile TiO(2)(110) is studied using ...
متن کاملSurface evolution of rutile TiO2 (100) in an oxidizing environment
Transmission electron microscopy (TEM) has been used to study the rutile TiO2 (100) surface in an oxidizing environment. By changing annealing conditions, TiO2 surfaces with different morphologies are obtained. We report a new centered (2 · 2) surface reconstruction on this surface. Our experimental data indicates that this is a meta-stable, oxygen deficient structure formed as the disordered s...
متن کاملSurface protonation at the rutile (110) interface: explicit incorporation of solvation structure within the refined MUSIC model framework.
The detailed solvation structure at the (110) surface of rutile (alpha-TiO2) in contact with bulk liquid water has been obtained primarily from experimentally verified classical molecular dynamics (CMD) simulations of the ab initio-optimized surface in contact with SPC/E water. The results are used to explicitly quantify H-bonding interactions, which are then used within the refined MUSIC model...
متن کاملSurface and interstitial Ti diffusion at the rutile TiO(2)(110) surface.
Diffusion of Ti through the TiO(2)(110) rutile surface plays a key role in the growth and reactivity of TiO(2). To understand the fundamental aspects of this important process, we present an analysis of the diffusion of Ti ad-species at the stoichiometric TiO(2)(110) surface using complementary computational methodologies of density functional theory corrected for on-site Coulomb interactions (...
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ژورنال
عنوان ژورنال: Hyomen Kagaku
سال: 2004
ISSN: 0388-5321,1881-4743
DOI: 10.1380/jsssj.25.548