Title
TXM-NEXAFS of <tex>$TiO_{2}$</tex>-based nanostructures TXM-NEXAFS of <tex>$TiO_{2}$</tex>-based nanostructures
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
New York ,
Subject
Physics
Chemistry
Source (journal)
AIP conference proceedings / American Institute of Physics. - New York
Volume/pages
1365(2011) , p. 437-440
ISSN
0094-243X
ISI
000298672400103
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In this work, electronic properties of individual TiOx-pristine nanoribbons (NR) prepared by hydrothermal treatment of anatase TiO(2) micro-particles were studied using the HZB transmission x-ray microscope (TXM) at the BESSY II undulator beamline U41-FSGM. NEXAFS is ideally suited to study TiO(2)-based materials because both the O K-edge and Ti L-edge features are very sensitive to the local bonding environment, providing diagnostic information about the crystal structures and oxidation states of various forms of titanium oxides and sub-oxides. TXM-NEXAFS combines full-field x-ray microscopy with spectroscopy, allowing the study of the electronic structure of individual nanostructures with spatial resolution better than 25 nm and a spectral resolution of up to E/Delta E = 10000. The typical image field in TXM-NEXAFS measurements is about 10 mu m. 10 mu m, which is large compared to the individual nanoparticle. Therefore, one image stack already contains statistically significant data. In addition, the directional electric field vector ((E) over bar) of the x-rays can be used as a "search tool" for the direction of chemical bonds of the atom selected by its absorption edge.
E-info
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https://repository.uantwerpen.be/docman/iruaauth/f0bbb7/3c910811.pdf
Full text (open access)
https://repository.uantwerpen.be/docman/irua/e17c3c/113071.pdf
Handle