Magnetic binary nanofillers
Magnetic binary nanofillers containing multiwall carbon nanotubes (MWCNT) and hercynite were synthesized by Chemical Vapor Deposition (CVD) on Fe/AlOOH prepared by the sol-gel method. The catalyst precursor was fired at 450 °C, ground and sifted through different meshes. Two powders were obtained wi...
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2012
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v407_n16_p3203_MoralesMendoza http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3203_MoralesMendoza |
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paper:paper_09214526_v407_n16_p3203_MoralesMendoza2023-06-08T15:50:39Z Magnetic binary nanofillers Carbon nanotubes Hercynite Magnetic characterization Nanofillers Aluminum oxides Catalyst precursors Hercynite Iron oxide particles Magnetic characterization Magnetic environments Nano-fillers Nanofiller Powder particles Reduction process Carbon nanotubes Chemical vapor deposition Ferromagnetic materials Ferromagnetism Iron oxides Multiwalled carbon nanotubes (MWCN) Nanoparticles Powders Saturation magnetization Sol-gel process Magnetic bubbles Magnetic binary nanofillers containing multiwall carbon nanotubes (MWCNT) and hercynite were synthesized by Chemical Vapor Deposition (CVD) on Fe/AlOOH prepared by the sol-gel method. The catalyst precursor was fired at 450 °C, ground and sifted through different meshes. Two powders were obtained with different particle sizes: sample A (50-75 μm) and sample B (smaller than 50 μm). These powders are composed of iron oxide particles widely dispersed in the non-crystalline matrix of aluminum oxide and they are not ferromagnetic. After reduction process the powders are composed of α-Fe nanoparticles inside hercynite matrix. These nanofillers are composed of hercynite containing α-Fe nanoparticles and MWCNT. The binary magnetic nanofillers were slightly ferromagnetic. The saturation magnetization of the nanofillers depended on the powder particle size. The nanofiller obtained from powder particles in the range 50-75 μm showed a saturation magnetization 36% higher than the one formed from powder particles smaller than 50 μm. The phenomenon is explained in terms of changes in the magnetic environment of the particles as consequence of the presence of MWCNT. © 2011 Elsevier B.V. All rights reserved. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v407_n16_p3203_MoralesMendoza http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3203_MoralesMendoza |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Carbon nanotubes Hercynite Magnetic characterization Nanofillers Aluminum oxides Catalyst precursors Hercynite Iron oxide particles Magnetic characterization Magnetic environments Nano-fillers Nanofiller Powder particles Reduction process Carbon nanotubes Chemical vapor deposition Ferromagnetic materials Ferromagnetism Iron oxides Multiwalled carbon nanotubes (MWCN) Nanoparticles Powders Saturation magnetization Sol-gel process Magnetic bubbles |
| spellingShingle |
Carbon nanotubes Hercynite Magnetic characterization Nanofillers Aluminum oxides Catalyst precursors Hercynite Iron oxide particles Magnetic characterization Magnetic environments Nano-fillers Nanofiller Powder particles Reduction process Carbon nanotubes Chemical vapor deposition Ferromagnetic materials Ferromagnetism Iron oxides Multiwalled carbon nanotubes (MWCN) Nanoparticles Powders Saturation magnetization Sol-gel process Magnetic bubbles Magnetic binary nanofillers |
| topic_facet |
Carbon nanotubes Hercynite Magnetic characterization Nanofillers Aluminum oxides Catalyst precursors Hercynite Iron oxide particles Magnetic characterization Magnetic environments Nano-fillers Nanofiller Powder particles Reduction process Carbon nanotubes Chemical vapor deposition Ferromagnetic materials Ferromagnetism Iron oxides Multiwalled carbon nanotubes (MWCN) Nanoparticles Powders Saturation magnetization Sol-gel process Magnetic bubbles |
| description |
Magnetic binary nanofillers containing multiwall carbon nanotubes (MWCNT) and hercynite were synthesized by Chemical Vapor Deposition (CVD) on Fe/AlOOH prepared by the sol-gel method. The catalyst precursor was fired at 450 °C, ground and sifted through different meshes. Two powders were obtained with different particle sizes: sample A (50-75 μm) and sample B (smaller than 50 μm). These powders are composed of iron oxide particles widely dispersed in the non-crystalline matrix of aluminum oxide and they are not ferromagnetic. After reduction process the powders are composed of α-Fe nanoparticles inside hercynite matrix. These nanofillers are composed of hercynite containing α-Fe nanoparticles and MWCNT. The binary magnetic nanofillers were slightly ferromagnetic. The saturation magnetization of the nanofillers depended on the powder particle size. The nanofiller obtained from powder particles in the range 50-75 μm showed a saturation magnetization 36% higher than the one formed from powder particles smaller than 50 μm. The phenomenon is explained in terms of changes in the magnetic environment of the particles as consequence of the presence of MWCNT. © 2011 Elsevier B.V. All rights reserved. |
| title |
Magnetic binary nanofillers |
| title_short |
Magnetic binary nanofillers |
| title_full |
Magnetic binary nanofillers |
| title_fullStr |
Magnetic binary nanofillers |
| title_full_unstemmed |
Magnetic binary nanofillers |
| title_sort |
magnetic binary nanofillers |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v407_n16_p3203_MoralesMendoza http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3203_MoralesMendoza |
| _version_ |
1768541804115787776 |