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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Winpenny, Richard E. P.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Two‐ and Three‐Spin Hybrid Inorganic‐Organic [2]Rotaxanes Containing Metallated Salen Groups
- 2024Ion Mobility Mass Spectrometry for Large Synthetic Molecules: Expanding the Analytical Toolboxcitations
- 2020Heterometallic 3d-4f complexes as air-stable molecular pre-cursors in low temperature syntheses of stoichiometric rare-earth orthoferrite powderscitations
- 2018The synthesis of a monodisperse quaternary ferrite (FeCoCrO4) from the hot injection thermolysis of the single source precursor [CrCoFeO(O2C: TBu)6(HO2CtBu)3]citations
- 2018The synthesis of a monodisperse quaternary ferrite (FeCoCrO 4 ) from the hot injection thermolysis of the single source precursor [CrCoFeO(O 2 C : T Bu) 6 (HO 2 C t Bu) 3 ]citations
- 2017Portraying entanglement between molecular qubits with four-dimensional inelastic neutron scatteringcitations
- 2015Copper Lanthanide Phosphonate Cages: Highly Symmetric {Cu(3)Ln(9)P(6)} and {Cu(6)Ln(6)P(6)} Clusters with C-3v and D-3h Symmetrycitations
- 2014A one-pot synthesis of monodispersed iron cobalt oxide and iron manganese oxide nanoparticles from bimetallic pivalate clusterscitations
- 2014Metal distribution and disorder in the crystal structure of [NH2Et2][Cr7MF8(tBuCO2)16] wheel molecules for M = Mn, Fe, Co, Ni, Cu, Zn and Cdcitations
- 2013Synthesis of monodispersed magnetite nanoparticles from iron pivalate clusterscitations
- 2010Deposition of functionalized Cr7Ni molecular rings on graphite from the liquid phasecitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
- 2009Functional chromium wheel-based hybrid organic - Inorganic materials for dielectric applicationscitations
- 2007Isolated heterometallic Cr7Ni rings grafted on Au(111) surfacecitations
Places of action
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article
The synthesis of a monodisperse quaternary ferrite (FeCoCrO4) from the hot injection thermolysis of the single source precursor [CrCoFeO(O2C: TBu)6(HO2CtBu)3]
Abstract
<p>Monodisperse cobalt chromium ferrite (FeCoCrO<sub>4</sub>) nanoparticles have been synthesised using the trimetallic pivalate cluster [CrCoFeO(O<sub>2</sub>C<sup>t</sup>Bu)<sub>6</sub>(HO<sub>2</sub>C<sup>t</sup>Bu)<sub>3</sub>]. The precursor was thermolysed in oleylamine and oleic acid, with diphenyl ether as the solvent at 260 °C. The effect of time and the concentration of the precursor on the stoichiometry of the phase formed and/or the morphology of the nanoparticles was studied. The reaction time was investigated by withdrawing aliquots at different times. No products were formed after 5 minutes and aliquots withdrawn at reaction times of less than 1 hour contain traces of iron oxide (Fe<sub>2</sub>O<sub>3</sub>); only cubic cobalt chromium ferrite (FeCoCrO<sub>4</sub>) was obtained after one hour. Transmission Electron Microscopy (TEM) showed that more monodisperse spherical ferrite nanoparticles (4.0 ± 0.4 nm) were obtained at higher precursor concentrations. Magnetic measurements revealed that all the ferrite particles are superparamagnetic at room temperature but showed large hysteresis at low temperature. The nanoparticles were characterised by Powder X-Ray Diffraction (p-XRD) and Transmission Electron Microscopy (TEM). A Superconducting Quantum Interference Device (SQUID) was used to analyse the magnetic properties of the nanoparticles.</p>