Loizou, K;
Mourdikoudis, S;
Sergides, A;
Besenhard, MO;
Sarafidis, C;
Higashimine, K;
Kalogirou, O;
... Gavriilidis, A; + view all
(2020)
Rapid Millifluidic Synthesis of Stable High Magnetic Moment FexCy Nanoparticles for Hyperthermia.
ACS Applied Materials & Interfaces
, 12
pp. 28520-28531.
10.1021/acsami.0c06192.
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Abstract
A millifluidic reactor was utilized for the synthesis of monodisperse, high magnetic moment, iron carbide (FexCy) nanoparticles by thermal decomposition of iron pentacarbonyl (Fe(CO)5). The effect of reaction conditions (temperature and pressure) on the size, morphology, crystal structure and magnetic properties of the nanoparticles was investigated. The system developed facilitated the thermal decomposition of precursor at reaction conditions (up to 265 °C and 4 bar) that cannot be easily achieved in conventional batch reactors. The degree of carbidization was enhanced by operating at elevated tempera-ture and pressure. The nanoparticles synthesized in the flow reactor had size 9-18 nm and demonstrated high saturation magnetisation (up to 164 emu/gFe). They further showed good stability against oxidation after two months of exposure in air, retaining good saturation magnetization values with a change of no more than 10% of the initial value. The heating ability of the nanoparticles in alternating magnetic field was comparable with other ferrites reported in literature, having intrinsic loss power values up to 1.52 (nHm2 kg-1).
| Type: | Article |
|---|---|
| Title: | Rapid Millifluidic Synthesis of Stable High Magnetic Moment FexCy Nanoparticles for Hyperthermia |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acsami.0c06192 |
| Publisher version: | https://doi.org/10.1021/acsami.0c06192 |
| Language: | English |
| Additional information: | This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10097741 |
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