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Detalle_Publicacion

Interacting Superparamagnetic Iron(II) Oxide Nanoparticles: Synthesis and Characterization in Ionic Liquids

Abstract: Interacting superparamagnetic iron(II) oxide nanoparticles (NPs) with sizes of 5.3 ± 1.6 nm were prepared by simple decomposition of [Fe(COT)2] (COT = 1,3,5,7-cyclooctatetraene) with 5 bar of H2 in 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (BMI·NTf2) ionic liquid (IL). The static and dynamic magnetic characterization revealed a superparamagnetic behavior with weak dipolar interactions of these NPs. In situ structural studies by X-ray absorption spectroscopy demonstrated that they consist of nanostructured FeO. This approach is an appropriate method to prepare and stabilize nanostructured FeO particles, where the presence of an IL proved to be fundamental to suppress the aggregation and usual overoxidation of the FeO NPs.

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Fuente: Inorg. Chem., 2016, 55 (2), pp 865?870

Editorial: American Chemical Society

Año de publicación: 2016

Nº de páginas: 6

Tipo de publicación: Artículo de Revista

DOI: 10.1021/acs.inorgchem.5b02320

ISSN: 0020-1669,1520-510X

Url de la publicación: https://doi.org/10.1021/acs.inorgchem.5b02320

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Autoría

LEAL, BÁRBARA CAROLINE

SCHOLTEN, JACKSON D.

ALVES, MARIA C. M.

MORAIS, JONDER

MANUEL DE PEDRO DEL VALLE

LUIS FERNANDEZ BARQUIN

DUPONT, JAIRTON

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