Fe3O4-SiO2 nanocomposites obtained via alkoxide and colloidal route
The magnetic nanocomposite materials represent an important class of nanomaterials extensively studied nowadays due to their varied applications from medical diagnostic to storage information. The iron oxides in silica matrix systems are highly investigated. The sol-gel method is a suitable way of p...
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| Veröffentlicht in: | Journal of sol-gel science and technology 2006-12, Vol.40 (2-3), p.317-323 |
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| container_title | Journal of sol-gel science and technology |
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| creator | JITIANU, A RAILEANU, M CRISAN, M PREDOI, D JITIANU, M STANCIU, L ZAHARESCU, M |
| description | The magnetic nanocomposite materials represent an important class of nanomaterials extensively studied nowadays due to their varied applications from medical diagnostic to storage information. The iron oxides in silica matrix systems are highly investigated. The sol-gel method is a suitable way of preparation of Fe3O4-SiO2 nanocomposite materials, since this method allowed the preparation of nanocomposite materials with narrow size distribution of magnetite in silica matrix. In the present work, nanocomposite materials in the Fe3O4-SiO2 system were prepared by sol-gel method via alkoxide and aqueous route. As SiO2 sources, tetraethoxysilan (TEOS) for the alkoxide route, as well as silica sol Ludox (30%) for the aqueous route, were used. This study shows the influence of the type of silica matrix on the structure, size, and distribution of the Fe3O4 nanoparticles in the Fe3O4-SiO2 systems. The gels were annealed at 550°C in order to consolidate the matrices. The structural characterization of the obtained materials via the two preparation routes was performed by DTA/TGA analysis, X-ray diffraction, IR and Mössbauer spectroscopy, Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED). |
| doi_str_mv | 10.1007/s10971-006-9321-7 |
| format | Article |
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The iron oxides in silica matrix systems are highly investigated. The sol-gel method is a suitable way of preparation of Fe3O4-SiO2 nanocomposite materials, since this method allowed the preparation of nanocomposite materials with narrow size distribution of magnetite in silica matrix. In the present work, nanocomposite materials in the Fe3O4-SiO2 system were prepared by sol-gel method via alkoxide and aqueous route. As SiO2 sources, tetraethoxysilan (TEOS) for the alkoxide route, as well as silica sol Ludox (30%) for the aqueous route, were used. This study shows the influence of the type of silica matrix on the structure, size, and distribution of the Fe3O4 nanoparticles in the Fe3O4-SiO2 systems. The gels were annealed at 550°C in order to consolidate the matrices. The structural characterization of the obtained materials via the two preparation routes was performed by DTA/TGA analysis, X-ray diffraction, IR and Mössbauer spectroscopy, Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED).</description><identifier>ISSN: 0928-0707</identifier><identifier>EISSN: 1573-4846</identifier><identifier>DOI: 10.1007/s10971-006-9321-7</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Chemistry ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; Diagnostic software ; Diagnostic systems ; Electron diffraction ; Exact sciences and technology ; Gels ; General and physical chemistry ; Infrared analysis ; Infrared spectroscopy ; Iron oxides ; Ludox (trademark) ; Magnetism ; Mossbauer spectroscopy ; Nanocomposites ; Nanomaterials ; Nanoparticles ; Silicon dioxide ; Size distribution ; Sol-gel processes ; Structural analysis ; Transmission electron microscopy ; X-ray diffraction</subject><ispartof>Journal of sol-gel science and technology, 2006-12, Vol.40 (2-3), p.317-323</ispartof><rights>2007 INIST-CNRS</rights><rights>Journal of Sol-Gel Science and Technology is a copyright of Springer, (2006). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c303t-ec8fbd81c0209b447cf4618343f8a894e8588220f2299a5af7c1a2eb250642063</citedby><cites>FETCH-LOGICAL-c303t-ec8fbd81c0209b447cf4618343f8a894e8588220f2299a5af7c1a2eb250642063</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,776,780,785,786,23911,23912,25120,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18332696$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>JITIANU, A</creatorcontrib><creatorcontrib>RAILEANU, M</creatorcontrib><creatorcontrib>CRISAN, M</creatorcontrib><creatorcontrib>PREDOI, D</creatorcontrib><creatorcontrib>JITIANU, M</creatorcontrib><creatorcontrib>STANCIU, L</creatorcontrib><creatorcontrib>ZAHARESCU, M</creatorcontrib><title>Fe3O4-SiO2 nanocomposites obtained via alkoxide and colloidal route</title><title>Journal of sol-gel science and technology</title><description>The magnetic nanocomposite materials represent an important class of nanomaterials extensively studied nowadays due to their varied applications from medical diagnostic to storage information. The iron oxides in silica matrix systems are highly investigated. The sol-gel method is a suitable way of preparation of Fe3O4-SiO2 nanocomposite materials, since this method allowed the preparation of nanocomposite materials with narrow size distribution of magnetite in silica matrix. In the present work, nanocomposite materials in the Fe3O4-SiO2 system were prepared by sol-gel method via alkoxide and aqueous route. As SiO2 sources, tetraethoxysilan (TEOS) for the alkoxide route, as well as silica sol Ludox (30%) for the aqueous route, were used. This study shows the influence of the type of silica matrix on the structure, size, and distribution of the Fe3O4 nanoparticles in the Fe3O4-SiO2 systems. The gels were annealed at 550°C in order to consolidate the matrices. The structural characterization of the obtained materials via the two preparation routes was performed by DTA/TGA analysis, X-ray diffraction, IR and Mössbauer spectroscopy, Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED).</description><subject>Chemistry</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>Diagnostic software</subject><subject>Diagnostic systems</subject><subject>Electron diffraction</subject><subject>Exact sciences and technology</subject><subject>Gels</subject><subject>General and physical chemistry</subject><subject>Infrared analysis</subject><subject>Infrared spectroscopy</subject><subject>Iron oxides</subject><subject>Ludox (trademark)</subject><subject>Magnetism</subject><subject>Mossbauer spectroscopy</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanoparticles</subject><subject>Silicon dioxide</subject><subject>Size distribution</subject><subject>Sol-gel processes</subject><subject>Structural analysis</subject><subject>Transmission electron microscopy</subject><subject>X-ray diffraction</subject><issn>0928-0707</issn><issn>1573-4846</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpFkM1KAzEYRYMoWKsP4G5AXEa__CdLKVaFQhfqOmQyCaROJzWZir69Iy24upt7z4WD0DWBOwKg7isBowgGkNgwSrA6QTMiFMNcc3mKZmCoxqBAnaOLWjcAIDhRM7RYBrbm-DWtaTO4Ifu83eWaxlCb3I4uDaFrvpJrXP-Rv1MXGjd0jc99n1Pn-qbk_Rgu0Vl0fQ1Xx5yj9-Xj2-IZr9ZPL4uHFfYM2IiD17HtNPFAwbScKx-5JJpxFrXThgcttKYUIqXGOOGi8sTR0FIBklOQbI5uDtxdyZ_7UEe7yfsyTJeWUmGE4JKJqUUOLV9yrSVEuytp68qPJWD_XNmDKzu5sn-urJo2t0eyq971sbjBp_o_1IxRaST7BaeXZy4</recordid><startdate>20061201</startdate><enddate>20061201</enddate><creator>JITIANU, A</creator><creator>RAILEANU, M</creator><creator>CRISAN, M</creator><creator>PREDOI, D</creator><creator>JITIANU, M</creator><creator>STANCIU, L</creator><creator>ZAHARESCU, M</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20061201</creationdate><title>Fe3O4-SiO2 nanocomposites obtained via alkoxide and colloidal route</title><author>JITIANU, A ; RAILEANU, M ; CRISAN, M ; PREDOI, D ; JITIANU, M ; STANCIU, L ; ZAHARESCU, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-ec8fbd81c0209b447cf4618343f8a894e8588220f2299a5af7c1a2eb250642063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Chemistry</topic><topic>Colloidal gels. 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The iron oxides in silica matrix systems are highly investigated. The sol-gel method is a suitable way of preparation of Fe3O4-SiO2 nanocomposite materials, since this method allowed the preparation of nanocomposite materials with narrow size distribution of magnetite in silica matrix. In the present work, nanocomposite materials in the Fe3O4-SiO2 system were prepared by sol-gel method via alkoxide and aqueous route. As SiO2 sources, tetraethoxysilan (TEOS) for the alkoxide route, as well as silica sol Ludox (30%) for the aqueous route, were used. This study shows the influence of the type of silica matrix on the structure, size, and distribution of the Fe3O4 nanoparticles in the Fe3O4-SiO2 systems. The gels were annealed at 550°C in order to consolidate the matrices. 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| subjects | Chemistry Colloidal gels. Colloidal sols Colloidal state and disperse state Diagnostic software Diagnostic systems Electron diffraction Exact sciences and technology Gels General and physical chemistry Infrared analysis Infrared spectroscopy Iron oxides Ludox (trademark) Magnetism Mossbauer spectroscopy Nanocomposites Nanomaterials Nanoparticles Silicon dioxide Size distribution Sol-gel processes Structural analysis Transmission electron microscopy X-ray diffraction |
| title | Fe3O4-SiO2 nanocomposites obtained via alkoxide and colloidal route |
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