Ferrofluid containing highly conductive polyaniline (PANI) was prepared
in which soluble PANI solutions dopedwith 10-camphorsulfonic acid (CSA) and dodecyl benzenesulfonic acid (DBSA) were used as the basic solution and Fe3O4nanoparticles (d = 10 nm) as the magnetic material. Moreover
the freestanding films of the resulting ferrofluid can beobtained by an evaporation method. The electrical and magnetic properties of the ferrofluid or its films can be adjusted through changing the content of PANI and Fe3O4.High saturated magnetization (≈ 30 emu/g) and high conductivity (≈250 S/cm) of thecomposite films can be achieved when the composite film contains 26.6 wt% of Fe3O4.In particular
it was found that the composite films exhibit a super-paramagnetic behavior(Hc=0)attributed to the size of Fe3O4 particles on the nanometer scale.
Abstract
Ferrofluid containing highly conductive polyaniline (PANI) was prepared
in which soluble PANI solutions dopedwith 10-camphorsulfonic acid (CSA) and dodecyl benzenesulfonic acid (DBSA) were used as the basic solution and Fe3O4nanoparticles (d = 10 nm) as the magnetic material. Moreover
the freestanding films of the resulting ferrofluid can beobtained by an evaporation method. The electrical and magnetic properties of the ferrofluid or its films can be adjusted through changing the content of PANI and Fe3O4.High saturated magnetization (≈ 30 emu/g) and high conductivity (≈250 S/cm) of thecomposite films can be achieved when the composite film contains 26.6 wt% of Fe3O4.In particular
it was found that the composite films exhibit a super-paramagnetic behavior(Hc=0)attributed to the size of Fe3O4 particles on the nanometer scale.
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