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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.

Other publications of the same journal or congress with authors from the University of Cantabria

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

Publisher: American Chemical Society

 Year of publication: 2016

No. of pages: 6

Publication type: Artículo de Revista

 DOI: 10.1021/acs.inorgchem.5b02320

ISSN: 0020-1669,1520-510X

Publication Url: https://doi.org/10.1021/acs.inorgchem.5b02320

Authorship

LEAL, BÁRBARA CAROLINE

SCHOLTEN, JACKSON D.

ALVES, MARIA C. M.

MORAIS, JONDER

DUPONT, JAIRTON