Decoration of multiwalled carbon nanotubes with protected iron nanoparticles
A method to simultaneously synthesize carbon-encapsulated magnetic iron nanoparticles (Fe-NPs) and attach these particles to multi-walled carbon nanotubes (MWCNT) is presented. Thermal decomposition of cyclopentadienyliron dicarbonyl dimer [(C5H5)2Fe2(CO)4], over a range of temperatures from 250°C t...
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| Veröffentlicht in: | Carbon (New York) 2015-04, Vol.84, p.47-55 |
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| container_title | Carbon (New York) |
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| creator | McCafferty, Liam Stolojan, Vlad King, Simon G. Zhang, Wei Haq, Sajad Silva, S. Ravi P. |
| description | A method to simultaneously synthesize carbon-encapsulated magnetic iron nanoparticles (Fe-NPs) and attach these particles to multi-walled carbon nanotubes (MWCNT) is presented. Thermal decomposition of cyclopentadienyliron dicarbonyl dimer [(C5H5)2Fe2(CO)4], over a range of temperatures from 250°C to 1200°C, results in the formation of Fe-NPs attached to MWCNT. At the same time, a protective carbon shell is produced and surrounds the Fe-NPs, covalently attaching the particles to the MWCNT and leading to resistance to acid dissolution. The carbon coating varies in degree of graphitisation, with higher synthesis temperatures leading to a higher degree of graphitisation. The growth model of the nanoparticles and subsequent mechanism of MWCNT attachment is discussed. Adsorption potential of the hybrid material towards organic dyes (Rhodamine B) has been displayed, an indication of potential uses as a material for water treatment. The material has also been electrospun into aligned nanocomposite fibres to produce a soft magnetic composite (SMC) with future applications in sensors and fast switching solenoids. |
| doi_str_mv | 10.1016/j.carbon.2014.11.042 |
| format | Article |
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Ravi P.</creator><creatorcontrib>McCafferty, Liam ; Stolojan, Vlad ; King, Simon G. ; Zhang, Wei ; Haq, Sajad ; Silva, S. Ravi P.</creatorcontrib><description>A method to simultaneously synthesize carbon-encapsulated magnetic iron nanoparticles (Fe-NPs) and attach these particles to multi-walled carbon nanotubes (MWCNT) is presented. Thermal decomposition of cyclopentadienyliron dicarbonyl dimer [(C5H5)2Fe2(CO)4], over a range of temperatures from 250°C to 1200°C, results in the formation of Fe-NPs attached to MWCNT. At the same time, a protective carbon shell is produced and surrounds the Fe-NPs, covalently attaching the particles to the MWCNT and leading to resistance to acid dissolution. The carbon coating varies in degree of graphitisation, with higher synthesis temperatures leading to a higher degree of graphitisation. The growth model of the nanoparticles and subsequent mechanism of MWCNT attachment is discussed. Adsorption potential of the hybrid material towards organic dyes (Rhodamine B) has been displayed, an indication of potential uses as a material for water treatment. 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Adsorption potential of the hybrid material towards organic dyes (Rhodamine B) has been displayed, an indication of potential uses as a material for water treatment. 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| ispartof | Carbon (New York), 2015-04, Vol.84, p.47-55 |
| issn | 0008-6223 1873-3891 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Carbon Electrospinning Indication Iron Multi wall carbon nanotubes Nanoparticles Nanostructure Particulate composites Solenoids |
| title | Decoration of multiwalled carbon nanotubes with protected iron nanoparticles |
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