Structural determination of titanium-oxide nanoparticles by x-ray absorption spectroscopy
Wu, Z. Y. ; Zhang, J. ; Ibrahim, K. ; Xian, D. C. ; Li, G. ; Tao, Y. ; Hu, T. D.
Woodbury, NY : American Institute of Physics (AIP)
Published 2002
Woodbury, NY : American Institute of Physics (AIP)
Published 2002
ISSN: |
1077-3118
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Source: |
AIP Digital Archive
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Topics: |
Physics
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Notes: |
To understand and improve the applications of titanium-oxide nanoparticles, it is extremely important to perform a detailed investigation of the surface and the interior structural properties of nanocrystalline materials, such as rutile and anatase with diameter of few nanometers. Here, x-ray absorption spectroscopy has been used to identify the local Ti environment and characterize the related electronic structure. We combine experimental results at the Ti K edge in both bulk and nanocrystal samples to determine the lattice distortion via the characteristic pre-edge features and the variation in the multiple-scattering region of the x-ray absorption near-edge structure spectra. The correlation between peak intensities and surface-to-volume ratio of nanoparticles is also discussed. © 2002 American Institute of Physics.
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Type of Medium: |
Electronic Resource
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URL: |