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Title: Electron energy-loss spectroscopic tomography of FexCo(3-x)O4 impregnated Co3O4 mesoporous particles: unraveling the chemical information in three dimensions
Author: Yedra Cardona, Lluís
Eljarrat Ascunce, Alberto
Arenal, Raúl
López Conesa, Lluís
Pellicer Vilà, Eva M.
López-Ortega, Alberto
Estrader i Bofarull, Marta
Sort, Jordi
Baró, M. D.
Estradé Albiol, Sònia
Peiró Martínez, Francisca
Keywords: Tomografia
Espectroscòpia de pèrdua d'energia d'electrons
Electron energy loss spectroscopy
Issue Date: 1-Jan-2016
Publisher: Royal Society of Chemistry
Abstract: Electron energy-loss spectroscopy-spectrum image (EELS-SI) tomography is a powerful tool to investigate the three dimensional chemical configuration in nanostructures. Here, we demonstrate, for the first time, the possibility to characterize the spatial distribution of Fe and Co cations in a complex FexCo(3-x)O4/Co3O4 ordered mesoporous system. This hybrid material is relevant because of the ferrimagnetic/antiferromagnetic coupling and high surface area. We unambiguously prove that the EELS-SI tomography shows a sufficiently high resolution to simultaneously unravel the pore structure and the chemical signal.
Note: Versió postprint del document publicat a:
It is part of: Analyst, 2016, vol. 141, num. 16, p. 4968-4972
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ISSN: 0003-2654
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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