2024-03-29T08:10:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1592832020-12-10T16:23:13Zcom_10261_10252com_10261_3col_10261_10253
3D visualization of the iron oxidation state in FeO/Fe3O4 core-shell nanocubes from electron energy loss tomography
Torruella, Pau
Arenal, Raúl
Peña, Francisco de la
Saghi, Zineb
Yedra, Lluís
Eljarrat, Alberto
López-Conesa, Lluís
Estrader, Marta
López-Ortega, Alberto
Salazar-Álvarez, G.
Nogués, Josep
Ducati, Caterina
Midgley, Paul A.
Peiró, Francesca
Estradé, Sònia
Ministerio de Ciencia e Innovación (España)
Ministerio de Economía y Competitividad (España)
European Commission
European Research Council
Generalitat de Catalunya
Knut and Alice Wallenberg Foundation
Royal Society (UK)
Electron tomography
Compressed sensing
Oxidation states
ELNES
EELS
Iron oxide
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.
2018-01-18T14:14:04Z
2018-01-18T14:14:04Z
2016
2018-01-18T14:14:04Z
artículo
Nano Letters 16(8): 5068-5073 (2016)
http://hdl.handle.net/10261/159283
10.1021/acs.nanolett.6b01922
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100004063
http://dx.doi.org/10.13039/501100002809
http://dx.doi.org/10.13039/501100000781
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100000288
http://dx.doi.org/10.13039/501100003329
27383904
eng
Sí
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2013-0295
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013-41506-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013-48628-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2013-46159-C3-3-P
info:eu-repo/grantAgreement/EC/FP7/312483
info:eu-repo/grantAgreement/EC/FP7/259619
closedAccess
American Chemical Society