Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites
Magnetic composites with silver nanoparticles bonded to their surface were successfully prepared using a simple chemical method. By means of a sol-gel technique, nickel ferrite nanoparticles have been prepared and coated with silica to control and avoid their magnetic agglomeration. The structural a...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/678739 |
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| author | I. G. Blanco-Esqueda G. Ortega-Zarzosa J. R. Martínez A. L. Guerrero |
| author_facet | I. G. Blanco-Esqueda G. Ortega-Zarzosa J. R. Martínez A. L. Guerrero |
| author_sort | I. G. Blanco-Esqueda |
| collection | DOAJ |
| description | Magnetic composites with silver nanoparticles bonded to their surface were successfully prepared using a simple chemical method. By means of a sol-gel technique, nickel ferrite nanoparticles have been prepared and coated with silica to control and avoid their magnetic agglomeration. The structural and magnetic properties of the nanoparticles were studied in function of the annealing temperature. Then, silver nanoparticles were incorporated by hydrolysis-condensation of tetraethyl orthosilicate, which contains silver nitrate on the surface of the nickel ferrite-SiO2 core/shell. Samples were characterized using X-ray diffraction, IR spectroscopy, SEM, and magnetometry. Results show that the silica covered the nickel ferrite nanoparticles and the silver nanoparticles remain stable in the surface of the composite. |
| format | Article |
| id | doaj-art-3b446b40a10144b6bfba779a57848b37 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-3b446b40a10144b6bfba779a57848b372025-02-03T07:25:38ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/678739678739Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell NanocompositesI. G. Blanco-Esqueda0G. Ortega-Zarzosa1J. R. Martínez2A. L. Guerrero3Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, Álvaro Obregón No. 64, Colonia Centro, 78000 San Luis Potosí, SLP, MexicoFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, Álvaro Obregón No. 64, Colonia Centro, 78000 San Luis Potosí, SLP, MexicoFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, Álvaro Obregón No. 64, Colonia Centro, 78000 San Luis Potosí, SLP, MexicoInstituto de Física, Universidad Autónoma de San Luis Potosí, Álvaro Obregón No. 64, Colonia Centro, 78000 San Luis Potosí, SLP, MexicoMagnetic composites with silver nanoparticles bonded to their surface were successfully prepared using a simple chemical method. By means of a sol-gel technique, nickel ferrite nanoparticles have been prepared and coated with silica to control and avoid their magnetic agglomeration. The structural and magnetic properties of the nanoparticles were studied in function of the annealing temperature. Then, silver nanoparticles were incorporated by hydrolysis-condensation of tetraethyl orthosilicate, which contains silver nitrate on the surface of the nickel ferrite-SiO2 core/shell. Samples were characterized using X-ray diffraction, IR spectroscopy, SEM, and magnetometry. Results show that the silica covered the nickel ferrite nanoparticles and the silver nanoparticles remain stable in the surface of the composite.http://dx.doi.org/10.1155/2015/678739 |
| spellingShingle | I. G. Blanco-Esqueda G. Ortega-Zarzosa J. R. Martínez A. L. Guerrero Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites Advances in Materials Science and Engineering |
| title | Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites |
| title_full | Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites |
| title_fullStr | Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites |
| title_full_unstemmed | Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites |
| title_short | Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites |
| title_sort | preparation and characterization of nickel ferrite sio2 ag core shell nanocomposites |
| url | http://dx.doi.org/10.1155/2015/678739 |
| work_keys_str_mv | AT igblancoesqueda preparationandcharacterizationofnickelferritesio2agcoreshellnanocomposites AT gortegazarzosa preparationandcharacterizationofnickelferritesio2agcoreshellnanocomposites AT jrmartinez preparationandcharacterizationofnickelferritesio2agcoreshellnanocomposites AT alguerrero preparationandcharacterizationofnickelferritesio2agcoreshellnanocomposites |