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Study of titanate nanotubes by X-ray and electron diffraction and electron microscopy
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
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2014 (English)In: Materials Characterization, ISSN 1044-5803, E-ISSN 1873-4189, Vol. 87, 166-171 p.Article in journal (Refereed) Published
Abstract [en]

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 center dot 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.

Place, publisher, year, edition, pages
2014. Vol. 87, 166-171 p.
Keyword [en]
Computer simulations, Transmission electron microscopy, Electron diffraction, Titanate nanotubes, X-ray powder diffraction, Debye formula
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:su:diva-102092DOI: 10.1016/j.matchar.2013.11.010ISI: 000331421600019OAI: oai:DiVA.org:su-102092DiVA: diva2:707962
Funder
VinnovaSwedish Research CouncilCarl Tryggers foundation Knut and Alice Wallenberg Foundation
Note

AuthorCount:7;

Available from: 2014-03-26 Created: 2014-03-26 Last updated: 2017-12-05Bibliographically approved

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