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- Static simulation of bulk and selected surfaces of anatase TiO2
- Univ Jaume 1
- Universidade Estadual Paulista (UNESP)
- Universidade Federal de São Carlos (UFSCar)
- A theoretical investigation has been carried out to characterize bulk and selected surfaces of anatase TiO2. The calculations are performed using a B3LYP hybrid functional and 6-31G basis set within the periodic density functional approximation. Optimization procedures have been employed to determine the equilibrium geometry of the crystal and slab surface models. The compressibility, band structure, and the bulk and surface charge distributions are reported. The surface relative energies are identified to follow the sequence: (001) < (101) < (100) much less than (110) < < < (111), from the most stable surface to the least stable one. Relaxation of (001) and (101) surfaces are moderate, with no displacements exceeding; approximate to0.19 Angstrom. The theoretical results are compared with previous theoretical studies and available experimental data. (C) 2001 Elsevier B.V. B.V. All rights reserved.
- Surface Science. Amsterdam: Elsevier B.V., v. 490, n. 1-2, p. 116-124, 2001.
- Elsevier B.V.
- titanium oxide
- single crystal surfaces
- density functional calculations
- Acesso restrito
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