Title
Quantification of crystalline and amorphous content in porous <tex>$TiO_{2}$</tex> samples from electron energy loss spectroscopy Quantification of crystalline and amorphous content in porous <tex>$TiO_{2}$</tex> samples from electron energy loss spectroscopy
Author
Faculty/Department
Faculty of Sciences. Chemistry
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Chemistry
Source (journal)
Ultramicroscopy. - Amsterdam
Volume/pages
106(2006) :7 , p. 630-635
ISSN
0304-3991
ISI
000238479300011
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present an efficient method for the quantification of crystalline versus amorphous phase content in mesoporous materials, making use of electron energy loss spectroscopy. The method is based on fitting a superposition of core-loss edges using the maximum likelihood method with measured reference spectra. We apply the method to mesoporous TiO2 samples. We show that the absolute amount of the crystalline phase can be determined with an accuracy below 5%. This method takes also the amorphous phase into account, where standard X-ray diffraction is only quantitative for crystalline phases and not for amorphous phase. (c) 2006 Elsevier B.V.. All rights reserved.
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