Artículo
Assembly of magnetic nanoparticles at a liquid/liquid interface: Catalytic effect on ion transfer process
Fecha de publicación:
01/11/2015
Editorial:
Elsevier Science Sa
Revista:
Journal of Electroanalytical Chemistry
ISSN:
1572-6657
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The adsorption of cobalt (Co) and cobalt–boron (CoxB) magnetic nanoparticles (NPs) at a liquid/liquid interface is examined. The Co NPs have a remanent magnetization while the CoxB is completely demagnetized in the absence of an external magnetic field. Cyclic voltammetry experiments reveal that the adsorption of these NPs at the interface shifts the positive potential limit toward lower values showing that a catalytic effect on the ion transfer process is occurring, while electrochemical impedance spectroscopy demonstrates that their mode of self-assembly is directed by their magnetic properties. CoxB NPs form a homogeneous film while Co segregates in macroscopic patches, leaving some areas of the interface uncovered.
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Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Cámara, Candelaria Inés; Monzon, Lorena Maria Aranzazu; Coey, Michael; Yudi, Lidia Mabel; Assembly of magnetic nanoparticles at a liquid/liquid interface: Catalytic effect on ion transfer process; Elsevier Science Sa; Journal of Electroanalytical Chemistry; 756; 1-11-2015; 77-83
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