Artículos de revistas
One Step Chemical Synthesis Of Ag-fe3o4 Heterodimer Nanoparticles: Optical, Structure, And Magnetic Properties
Registro en:
Ieee Transactions On Magnetics. , v. 49, n. 8, p. 4606 - 4609, 2013.
189464
10.1109/TMAG.2013.2259148
2-s2.0-84881048801
Autor
Muraca D.
Odio O.F.
Reguera E.
Pirota K.R.
Institución
Resumen
Optical, magnetic and structural properties of one-step chemical decomposition approach Ag-Fe3O4 heterodimer structures are reported. We synthesized Ag-Fe3O4 nanoparticles where the Ag nanoparticles of less than 10 nm are physically attached to Fe 3O4 nanoparticles also less than 10 nm. The structural properties of the samples were characterized from X-ray diffraction (XRD) and transmission electron microscopy (TEM) data, which confirmed the existence of heterodimer structures in solution along with isolated magnetite nanoparticles. Optical properties of the obtained samples were studied using UV/vis spectra and compared with Fe3O4 reference nanoparticles in absence of metallic component. Magnetization hysteresis loops for the obtained samples along with Fe3O4 reference sample at 2 K (blocked regime), 50 K (intermediate regime) and 300 K (superparamagnetic regime) and with maximum applied field of ± 20 kOe were performed and correlated to the structural data. Also, magnetization versus temperature curves (Field Cooling-Zero Field Cooling) with static magnetic field of 50 Oe were measured, from which the blocking temperature of the heterodimer sample was about 77 K and for the reference less than 20 K. © 1965-2012 IEEE. 49 8 4606 4609 Jain, P.K., El Sayed, I.H., El Sayed, M.A., Au nanoparticles target cancer (2007) Nanotoday, V21, p. 18 Arruebo, M., Ferńndez-Pacheco, R., Ibarra, M.R., Santamaría, J., Magnetic nanoparticles for drug delivery (2007) Nanotoday, 2 (3), p. 22 Pankhurst, Q.A., Connolly, J., Jones, S.K., Dobson, J., Applications of magnetic nanoparticles in biomedicine (2003) J. Phys. D: App. Phys., 36, pp. R167 Lee, H., Jang, J.T., Choi, J.S., Moon, S.H., Noh, S.H., Kim, J.W., Kim, J.G., Cheon, J., Exchange-coupled magnetic nanoparticles for efficient heat induction (2011) Nat. Nanot., 6, p. 418 Wang, C., Yin, H.F., Dai, S., Sun, S., A general approach to noble Metal-Oxide dumbbell nanoparticles and their catalytic application for CO oxidation (2010) Chem. Mater., 22, p. 3277 Lopes, G., Vargas, J.M., Sharma, S.K., Béron, F., Pirota, K.R., Knobel, M., Rettori, C., Zysler, R.D.J., Ag-Fe O dimer colloidal nanoparticles: Synthesis and enhancement of magnetic properties (2010) Phys. Chem., C114, p. 10148 Muraca, D., Sharma, S.K., Socolovsky, L.M., De Siervo, A., Lopes, G., Pirota, K.R., Influence of silver concentrations on structural and magnetic properties of Ag-Fe O heterodimer nanoparticles (2012) J. Nanosci. Nanotech., 12, p. 6961 Huang, J., Sun, Y., Huang, S., Yu, K., Zhao, Q., Peng, F., Yu, H., Yang, J., (2011) J. Mater. Chem, 21, p. 17930 Jones, M.R., Osberg, K.D., Macfarlane, R.J., Langille, M.R., Mirkin, C.A., Templated techniques for the synthesis and assembly of plasmonic nanostructures (2011) Chem. Rev., 111, p. 3736 Lin, X.Z., Teng, X., Yang, H., Direct synthesis of narrowly dispersed silver nanoparticles using a single-source precursor (2003) Langmuir, 19, p. 10081 Mayer, K.M., Hafner, J.H., Localized surface plasmon resonance sensors (2011) Chem. Rev., 111, p. 3828 Lermé, J., Size evolution of the surface plasmon resonance damping in silver nanoparticles: Confinement and dielectric effects (2011) J. Phys. Chem. C, 115, p. 14098 Wiley, B.J., Sang, H.I., Zhi-Yuan, L., McLellan, J., Siekkinen, A., Younan, X., Maneuvering the surface plasmon resonance of silver nanostructures through shape-controlled synthesis (2006) J. Phys. Chem. B., 110, p. 15666 Goya, G.F., Berquó, T.S., Fonseca, F.C., Morales, M.P., Static and dynamic magnetic properties of spherical magnetite nanoparticles (2003) J. Appl. Phys., 94 (3520) Morales, M.P., Veintemillas-Verdaguer, S., Montero, M.I., Serna, C.J., Surface and internal spin canting in -Fe O nanoparticles (1999) Chem. Mater., 11, p. 3058 Muraca, D., De Siervo, A., Pirota, K.R., From quenched to unquenched orbital magnetic moment on metallic-oxide nanoparticles: DC magnetic properties and electronic correlation (2013) J. Nanopart. Res., 15, p. 1375