The effect of oxygen vacancies on water wettability of a ZnO surface.

@article{Hu2013TheEO,
  title={The effect of oxygen vacancies on water wettability of a ZnO surface.},
  author={Han Hu and Hai‐Feng Ji and Ying Sun},
  journal={Physical chemistry chemical physics : PCCP},
  year={2013},
  volume={15 39},
  pages={
          16557-65
        }
}
  • Han Hu, H. Ji, Ying Sun
  • Published 17 September 2013
  • Materials Science, Medicine
  • Physical chemistry chemical physics : PCCP
In this study, the effect of oxygen vacancies on the water wettability of a hydrated ZnO(100) surface has been examined via molecular dynamics simulations with a reactive force field (ReaxFF). The results show that the oxygen vacancies on the ZnO surface change the structures of the ZnO surface and subsequently its water adsorption capability. While a 1 : 1 ratio of water to hydroxyl is observed for a water monolayer absorbed on ZnO(100) without oxygen vacancies, additional water adsorption as… 
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References

SHOWING 1-10 OF 44 REFERENCES
Hydroxylation Structure and Proton Transfer Reactivity at the Zinc Oxide−Water Interface
The hydroxylation structural features of the first adsorption layer and its connection to proton transfer reactivity have been studied for the ZnO-liquid water interface at room temperature.
Water adsorption on ZnO(1010): from single molecules to partially dissociated monolayers.
TLDR
A thermodynamic analysis shows that the full water monolayer is clearly the most stable phase until water starts to desorb and the energy cost involved to form [1210]-oriented domain boundaries between (2x1) patches with different orientation is almost negligible which explains the abundance of such domain boundaries in STM images.
Water adsorption on stepped ZnO surfaces from MD simulation
This work presents a ReaxFF reactive force-field for use in molecular dynamics simulations of the ZnO– water system. The force-field parameters were fitted to a data-set of energies, geometries and
Tunable and reversible surface wettability transition of vertically aligned ZnO nanorod arrays
Vertically aligned zinc oxide (ZnO) nanorods (NRs) with different surface morphology were grown by metal organic chemical vapor deposition (MOCVD) on sapphire substrate. To study the effect of
Theoretical formation energy of oxygen-vacancies in oxides : Special issue on grain boundaries, interfaces, defects and localized quantum structures in ceramics
Formation energies of neutral and charged oxygen vacancies in MgO, ZnO, Al 2 O 3 , In 2 O 3 and SnO 2 have been calculated by a first principles plane-wave pseudopotential method. Two kinds of
Surface morphology effects on the light- controlled wettability of ZnO nanostructures
Abstract ZnO nanostructures of diverse morphology with shapes of corrals and cabbages as well as open and filled hexagons and sheaves prepared by APMOCVD technique, are investigated with water
Photoinduced Surface Wettability Conversion of ZnO and TiO2 Thin Films
The photoinduced surface wettability conversion reactions of ZnO and TiO2 thin films were investigated by means of water contact angle measurement and X-ray photoelectron spectroscopy. Before
Observation of the dynamical change in a water monolayer adsorbed on a ZnO surface.
TLDR
A combined scanning tunneling microscopy and density-functional theory (DFT) study shows a rich structure of water monolayers adsorbed on ZnO(1010) at room temperature, revealing that water molecules repeatedly associate and dissociate in this sustained dynamical process.
Structure, energetics, and dynamics of water adsorbed on the muscovite (001) surface: a molecular dynamics simulation.
Molecular dynamics (MD) computer simulations of liquid water adsorbed on the muscovite (001) surface provide a greatly increased, atomistically detailed understanding of surface-related effects on
Reversible Photoinduced Wettability Transition of Hierarchical ZnO Structures
Control over the wettability of solids as well as the manufacturing of functional surfaces with special wetting properties has aroused much interest because of great advantages given to various
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