Microstructural Assessment of Magnetite Nanoparticles (Fe3O4) Obtained by Chemical Precipitation Under Different Synthesis Conditions
| Autor: | Maria Sylvia Silva Dantas, Gabriela Cordeiro Silva, Thays Michelle da Silva Cardoso, Luciana Barbosa Salviano, Angela de Mello Ferreira |
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| Rok vydání: | 2018 |
| Předmět: |
magnetite
Materials science synthesis Nanoparticle 02 engineering and technology magnetization 010402 general chemistry 01 natural sciences chemistry.chemical_compound Crystallinity General Materials Science Materials of engineering and construction. Mechanics of materials Magnetite Aqueous solution Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 0104 chemical sciences chemistry Chemical engineering Mechanics of Materials Particle-size distribution TA401-492 Particle Crystallite 0210 nano-technology |
| Zdroj: | Materials Research, Issue: ahead, Published: 15 FEB 2018 Materials Research, Vol 21, Iss 2 (2018) Materials Research v.21 n.2 2018 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Volume: 21, Issue: 2, Article number: e20170764, Published: 15 FEB 2018 |
| ISSN: | 1980-5373 1516-1439 |
| Popis: | Magnetite nanosized particles synthesis was achieved by two different routes. Assessment of microstructure was carried out aiming at comparing the outcome of synthesis parameters on the crystallinity, distribution of particle dimension and magnetic activity of nanosized particles precipitated in aqueous solution. Increasing of the nanoparticles crystallite size by stirring could be evidenced by the results. Temperature does not significantly affect crystallite size and crystallinity. The type of precursor was the factor that most contributed to the definition of crystallinity and particle size distribution. The route which used FeSO4.7H2O as precursor favored large crystallite sizes and crystallinity, while the route which used Fe2SO4.7H2O and FeCl3.6H2O as precursors resulted in much smaller crystallite sizes and crystallinity. |
| Databáze: | OpenAIRE |
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