Synthesis of Variable-Sized Nanocrystals of Fe3O4 with High Surface Reactivity
Citations Over TimeTop 10% of 2004 papers
Abstract
A new rational method of synthesis of nanocrystalline iron (II, III) oxide is based on the elevated-temperature hydrolysis of chelate iron alkoxide complexes in solutions of corresponding alcohol, diethylene glycol, and N-methyl diethanolamine. The rates of reaction and crystallization are easily tuned by varying the concentration of reactants and changing the temperature. The size of the nanocrystals is controlled by changing the complexing strength of the reaction medium: 5.7 nm in diethylene glycol, 16.8 nm in N-methyl diethanolamine, and 12.7 nm in a 1:1 mixture of both solvents. The nanocrystalline powdered Fe3O4 products were isolated with a high yield. The surface of the obtained nanocrystals is passivated by molecules of adsorbed donating solvent that provide stability against agglomeration, provide solubility in polar protic solvents (water and methanol), and allow reactions at the nanocrystal surface.
Related Papers
- → Surface Tension of Aqueous Solutions of Diethanolamine and Triethanolamine from 25 °C to 50 °C(1996)88 cited
- → Hydrogen production upon UV-light irradiation of Cu/TiO2 photocatalyst in the presence of alkanol-amines(2020)29 cited
- The performance of zinc electrode in electrolyte adding diethanolamine,triethanolamine(2010)
- → Raman Studies of Alcoholysis Reaction of Titanium Tetraisopropoxide with Diethanolamine.(1996)2 cited
- → Technological concentration sensor for ethanolamines based on an optical sensor(2018)