Study of titanate nanotubes by X-ray and electron diffraction and electron microscopy

0427377 - ÚMCH 2015 RIV US eng J - Journal Article
Brunátová, T. - Popelková, Daniela - Wan, W. - Oleynikov, P. - Daniš, S. - Zou, X. - Kužel, R.
Study of titanate nanotubes by X-ray and electron diffraction and electron microscopy.
Materials Characterization. Roč. 87, January (2014), s. 166-171. ISSN 1044-5803. E-ISSN 1873-4189
Institutional support: RVO:61389013
Keywords : computer simulations * transmission electron microscopy * electron diffraction
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 1.845, year: 2014

The structure of titanate nanotubes (Ti-NTs) was studied by a combination of powder X-ray diffraction (PXRD), electron diffraction and high resolution transmission electron microscopy (HRTEM). Ti-NTs are prepared by hydrothermal treatment of TiO2 powder. The structure is identified by powder X-ray diffraction as the one based on the structure of H2Ti2O5·H2O phase. The same structure is obtained by projected potential from HRTEM through-focus image series. The structure is verified by simulated PXRD pattern with the aid of the Debye formula. The validity of the model is tested by computing Fourier transformation of a single nanotube which is proportional to measured electron diffraction intensities. A good agreement of this calculation with measured precession electron diffraction data is achieved.
Permanent Link: http://hdl.handle.net/11104/0235080