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  1. No Access

    Article

    Hydrothermal synthesis of mixed zinc–cobalt ferrite nanoparticles: structural and magnetic properties

    We synthesize Zn-substituted cobalt ferrite (Zn x Co1−x Fe2O4, with 0 ≤ x ≤ 1) magnetic nanoparticles by a hydrothermal co-precipitation method in ...

    P. Coppola, F. G. da Silva, G. Gomide, F. L. O. Paula… in Journal of Nanoparticle Research (2016)

  2. No Access

    Article

    Influence of the spatial confinement at nanoscale on the structural surface charging in magnetic nanocolloids

    In this work we focus on the surface charging properties of core shell ferrite nanoparticles dispersed in water, namely magnetic nanocolloids. This structural charge results from the Brönsted acid-base behavio...

    A. F. C. Campos, R. Aquino, F. A. Tourinho… in The European Physical Journal E (2013)

  3. No Access

    Chapter and Conference Paper

    Synthesis and room temperature magnetic and magneto-optical characterization of size-controlled nickel nanoferrite based ferrofluids

    Nickel ferrite nanoparticles are synthesized bottom up and then peptized in aqueous media resulting in stable magnetic fluids. X-ray powder diffraction and transmission electronic microscopy permit the investi...

    M. H. Sousa, F. A. Tourinho, J. Depeyrot, E. Dubois… in Surface and Colloid Science (2004)

  4. No Access

    Article

    Nanoparticles superficial density of charge in electric double-layered magnetic fluid: A conductimetric and potentiometric approach

    We analyze potentiometric and conductimetric measurements simultaneously performed on Electric Double-Layer Magnetic Fluid based on cobalt ferrite nanoparticles, in order to obtain the pH-dependence of the partic...

    A.F.C. Campos, F.A. Tourinho, G.J. da Silva… in The European Physical Journal E (2001)

  5. No Access

    Article

    Nanoparticle chain-like formation in electrical double-layered magnetic fluids evidenced by small-angle X-ray scattering

    Small-angle X-ray scattering (SAXS) was performed on a series of Electric Double-Layered Magnetic Fluids (EDL-MF) composed of ferrite type-- CoFe2O4, MnFe2O4, ZnFe2O4, NiFe2O4 and CuFe2O4--nanoparticles of differ...

    R. Itri, J. Depeyrot, F.A. Tourinho, M.H. Sousa in The European Physical Journal E (2001)