Skip to main content Accessibility help
×
Home

Preparation and characterization of self-formed CoFe2O4 ferrofluid

  • Jian Li (a1), Dalin Dai (a2), Xiaodong Liu (a1), Yueqiang Lin (a1), Yan Huang (a1) and Lang Bai (a1)...

Abstract

An ionic ferrofluid is prepared using coprecipitation and acid treatment techniques. In the ferrofluid, Co3+ and Fe2+ dissolved from CoFe2O4 nanoparticles via suitable acid attack, are absorbed on the surface of the magnetic particles and thus prevent them from aggregating. We call this self-formed ferrofluid. The colloidal particles in the ferrofluid are constructed with a magnetic core and a nonmagnetic surface layer about 2 nm. The size and the volume fraction of particles in the ferrofluid are described with geometric diameter d and volume fraction ϕv, as well as magnetic diameter dm and magnetic volume fraction ϕm. The viscous and magnetic properties of this ferrofluid depend on these parameters. The viscosity can be tunable for any volume fraction of particles by adding poly(ethylene glycol) into the carrier liquid.

Copyright

Corresponding author

a) Address all correspondence to this author. e-mail: aizhong@swu.edu.cn

References

Hide All
1Rosensweig, R.E.: Fluidmagnetic buoyancy. AIAAJ 4, 1751 (1966).
2Popplewell, J. and Charles, S.W.: Ferromagnetic liquid—Their magnetic properties. IEEE Trans. Mag. MAG-17, 2923 (1981).
3Sutariya, G.M., Upadhyay, R.V., and Mehta, R.V.: Preparation and properties of stable magnetic fluid using Mn substituted ferrite particles. J. Colloid. Inter. Sci. 155, 152 (1993).
4Massart, R.: Preparation of aqueous magnetic liquids in alkaline and acidic media. IEEE Trans. Mag. MAG-17, 1247 (1981).
5Tourinho, F.A., Franck, R., and Massart, R.: Aqueous ferrofluids based on manganese and cobalt ferrites. J. Mater. Sci. 25, 3249 (1990).
6Sousa, M.H., Tourinho, F.A., Depeyrot, J., Silva, G.J., and Lara, M.C.F.L.: New electric double-layered magnetic liquid based on copper, nickel, and zinc ferrite nanostructure. J. Phys. Chem. B 105, 1168 (2001).
7Bacri, J.C., Perzynski, R., and Salin, D.: Ionic ferrofluids: A crossing of chemistry and physics. J. Magn. Magn. Mater. 85, 27 (1990).
8Fauconnier, N., Pons, J.N., Roger, J., and Bee, A.: Thiolation of maghemite nanoparticles by dimercaptosuccinic acid. J. Colloid. Inter. Sci. 194, 427 (1997).
9Halbreich, A., Roger, J., Pons, J.N., Geldwerth, D., Silva, M.F. da, Roudier, M., and Bacri, J.C.: Biomedical applications of maghemite ferrofluid. Biochimie 80, 379 (1998).
10Campos, A.F.C., Tourinho, F.A., Silva, G.J. da, Lara, M.C.F.L., and Depeyrot, J.: Nanoparticles superficial density of charge in electric double-layered magnetic fluid: A conductimetric and potentiometric approach. Eur. Phys. J. E. 6, 29 (2001).
11Li, J., Dai, D.L., Zhao, Z.G., Lin, Y.Q., and Lin, C.Y.: Properties of ferrofluid nanoparticles prepared by coprecipitation and acid treatment. J. Nanoparticle Res. 4, 261 (2002).
12Li, J. and Dai, D.L.: No. ZL021338647, Patent of PR China. ( 2005).
13Kodama, T., OoKubo, M., Miura, S., and Kitayama, Y.: Synthesis and characterization of ultrafine Mn(II)-bearing ferrite of type MnxFe3−xO4 by coprecipitation. Mater. Res. Bull. 31, 1501 (1996).
14Popplewell, J. and Sakhnini, L.: The dependence of the physical and magnetic properties of magnetic fluids on particles size. J. Magn. Magn. Mater. 149, 72 (1995).
15Hasmonay, E., Deperyot, J., Sousa, M.H., Tourinho, F.A., Bacri, J-C., Perzynski, R., Raikher, L.Yu, and Rosenman, I.: Magnetic and optical properties of ionic ferrofluids based on nickel ferrite nanoparticles. J. Appl. Phys. 88, 6628 (2000).
16Jamon, D., Donatini, F., Monin, J., Rasa, M., Socoliuc, V., Filip, O., Bica, D., and Sofonea, V.: Concentration dependence of magnetisation and magneto-optical effects in a ferrofluid with double layer stabilized particles. J. Magn. Magn. Mater. 201, 174 (1999).
17Berkowitz, A.E., Lahut, J.A., and VanBurn, C.E.: Properties of magnetic fluid particles. IEEE Trans. Mag. MAG-16, 184 (1980).
18Li, J., Liu, C.Y., Zhao, B.G., Lin, Y.Q., and Den, Z.J.: Structure and properties of Fe–C fine particles prepared by AC arc discharge. J. Magn. Magn. Mater. 195, 470 (1999).
19Farris, R.J.: Prediction of the viscosity of multimodal suspensions from unimodal viscosity data. Trans. Soc. Rheol. 12, 181 (1968).
20Dababnch, M.S., Ayoub, N.Y., Odeh, I., and Laham, N.M.: Viscosity, resistivity and surface tension measurement of Fe3O4 ferrofluid. J. Magn. Magn. Mater. 125, 34 (1993).
21Choi, H.J., Kim, C.A., Kwon, T.M., and Jhon, M.S.: Viscosity of magnetic particle suspensions. J. Magn. Magn. Mater. 209, 228 (2000).
22Shaw, D.J.: Introduction to Colloid and Surface Chemistry, 4th ed, (Butterworth-Heinemann, Oxford, 1999), pp. 181, 217.
23Bizdoaca, E.L., Spasova, M., Farle, M., Hilgendorff, M., and Caruso, F.: Magnetically directed self-assembly of submicron spheres with a Fe3O4 nanoparticle shell. J. Magn. Magn. Mater. 240, 44 (2002).
24Li, J., Zhao, B.G., Lin, Y.Q., Qiu, X.Y., and Ma, X.J.: Transmission of light in ionic ferrofluid. J. Appl. Phys. 92, 1128 (2002).
25Li, J., Liu, X.D., Lin, Y.Q., Qiu, X.Y., Ma, X.J., and Hang, Y.: Field-induced transmission of light in ionic ferrofluid of tunable viscosity. J. Phys. D: Appl. Phys. 37, 3357 (2004).

Keywords

Preparation and characterization of self-formed CoFe2O4 ferrofluid

  • Jian Li (a1), Dalin Dai (a2), Xiaodong Liu (a1), Yueqiang Lin (a1), Yan Huang (a1) and Lang Bai (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed