3D Visualization of the Iron Oxidation State in FeO/Fe3O4 Core-Shell Nanocubes from Electron Energy Loss Tomography

dc.contributor.author
Torruella, Pau
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Arenal, Raúl
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Peña, Francisco de la
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Saghi, Zineb
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Yedra Cardona, Lluís
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Eljarrat Ascunce, Alberto
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López Conesa, Lluís
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Estrader i Bofarull, Marta
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López-Ortega, Alberto
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Salazar Álvarez, Germán
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Nogués, Josep
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Ducati, Caterina
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Midgley, Paul A.
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Peiro, Francesca
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Estrade, Sonia
dc.date.issued
2016
dc.identifier
https://ddd.uab.cat/record/206946
dc.identifier
urn:10.1021/acs.nanolett.6b01922
dc.identifier
urn:oai:ddd.uab.cat:206946
dc.identifier
urn:scopus_id:84981502005
dc.identifier
urn:articleid:15306992v16n8p5068
dc.identifier
urn:wos_id:000381331900047
dc.identifier
urn:oai:egreta.uab.cat:publications/7c9b44c6-52c6-4a9a-9236-9839e8cb3265
dc.identifier
urn:icn2uab:4083581
dc.description.abstract
The physicochemical properties used in numerous advanced nanostructured devices are directly controlled by the oxidation states of their constituents. In this work we combine electron energy-loss spectroscopy, blind source separation, and computed tomography to reconstruct in three dimensions the distribution of Fe and Fe ions in a FeO/FeO core/shell cube-shaped nanoparticle with nanometric resolution. The results highlight the sharpness of the interface between both oxides and provide an average shell thickness, core volume, and average cube edge length measurements in agreement with the magnetic characterization of the sample.
dc.format
application/pdf
dc.language
eng
dc.publisher
dc.relation
Ministerio de Economía y Competitividad MAT2013-41506
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Ministerio de Economía y Competitividad MAT2013-48628-R
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Ministerio de Economía y Competitividad FIS2013-46159-C3-3-P
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Ministerio de Economía y Competitividad CSD2009-00013
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Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-672
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Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1015
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European Commission 312483
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Ministerio de Economía y Competitividad SEV-2013-0295
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European Commission 259619
dc.relation
Nano letters ; Vol. 16, Issue 8 (August 2016), p. 5068-5073
dc.rights
open access
dc.rights
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dc.rights
https://rightsstatements.org/vocab/InC/1.0/
dc.subject
Compressed sensing
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EELS
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Electron tomography
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ELNES
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Iron oxide
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Oxidation states
dc.title
3D Visualization of the Iron Oxidation State in FeO/Fe3O4 Core-Shell Nanocubes from Electron Energy Loss Tomography
dc.type
Article


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