Electron energy-loss spectroscopic tomography of FexCo(3-x)O4 impregnated Co3O4 mesoporous particles: unraveling the chemical information in three dimensions

L. Yedra, A. Eljarrat, R. Arenal, L. López-Conesa, E. Pellicer, A. López-Ortega, M. Estrader, J. Sort, M. D. Baró, S. Estradé, F. Peiró

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Resum

© The Royal Society of Chemistry 2016. 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.
Idioma originalEnglish
Pàgines (de-a)4968-4972
RevistaThe Analyst
Volum141
DOIs
Estat de la publicacióPublicada - 21 d’ag. 2016

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