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Issue 16, 2016
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Electron energy-loss spectroscopic tomography of FexCo(3−x)O4 impregnated Co3O4 mesoporous particles: unraveling the chemical information in three dimensions

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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.

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

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Publication details

The article was received on 09 Mar 2016, accepted on 07 Jun 2016 and first published on 08 Jun 2016


Article type: Paper
DOI: 10.1039/C6AN00562D
Citation: Analyst, 2016,141, 4968-4972
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    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 and F. Peiró, Analyst, 2016, 141, 4968
    DOI: 10.1039/C6AN00562D

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