Morozov, IG;
Belousova, OV;
Firth, S;
Parkin, IP;
Kuznetcov, MV;
(2017)
Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties.
Advanced Powder Technology
, 28
(9)
pp. 2065-2077.
10.1016/j.apt.2017.05.013.
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Abstract
Octahedral and roughly spherical In-In2O3 nanoparticles ranging in average particle size from 30 up to 300 nm were prepared by levitation-jet aerosol synthesis through condensation of metal indium vapor in helium gas flow with gaseous oxygen/air injection at ambient and reduced pressure. Scanning electron microscopy (SEM), X-ray diffraction (XRD), BET measurements, UV–vis, FT-IR, Raman, XPS, and vibrating-sample magnetometry (VSM) characterized the nanoparticles. Room-temperature ferromagnetism with maximum magnetization of up to 0.17 emu/g was recorded for the nanoparticles. The results indicate a predominant role of the actual microstructure on the nanoparticle properties. It is suggested that the observed ferromagnetic ordering may be related to intrinsic defects at the In/In2O3 interface structure of such a composite material. This suggestion is in good agreement with the results of optical and XPS experiments on the NPs.
| Type: | Article |
|---|---|
| Title: | Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.apt.2017.05.013 |
| Publisher version: | https://doi.org/ 10.1016/j.apt.2017.05.013 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Engineering, Chemical, Engineering, Nanoparticles (NPs), Room-temperature ferromagnetism (RTFM), Levitation jet generator, Indium oxide, Optical properties, INDIUM-OXIDE, IN2O3 NANOPARTICLES, MAGNETIC-PROPERTIES, GAS SENSORS, SIZE, NANOCRYSTALS, PHASE, TIN, SPECTROSCOPY, NITRIDE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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 Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10085432 |
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