Effect of synthesis parameters on the size of cobalt ferrite crystallite
Source abstract
Abstract
Abstract Nanoparticles of cobalt ferrite (CoFe 2 O 4 ) were synthesized by the EDTA/Citrate complexing method and hydrothermal method without addition of surfactant. The influence of the pH of the reaction medium (8, 9 or 10), the temperature of the thermal treatment (600 °C, 800 °C or 1000 °C for the EDTA/Citrate method, and 120 °C, 140 °C or 160 °C for the hydrothermal method), and the duration of the thermal treatment (2, 4 or 6 h for the EDTA/Citrate complexing method, and 6, 15 or 24 h for the hydrothermal method) on the average crystallite size was studied by means of an experimental design based on the results obtained by XRD. Statistical analysis led to quantification of the influence of the synthesis parameters on the crystallite size of the powders. Results showed that the pH of the reaction medium is the parameter that shows the greatest influence on the growth of the crystallites of the powders obtained by the hydrothermal method, while calcination temperature is the most significant one for the powders produced by the EDTA/Citrate complexing method.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Nanotecnologia: introdução, preparação e caracterização de nanomateriais e exemplos de aplicação
2. Synthesis of superparamagnetic MgFe O nanoparticles by coprecipitation10.1016/S0304-8853(98)00585-X ↗
3. Structural and morphological characterization of FeCo2O4 and CoFe2O4 spinels prepared by a coprecipitation method10.1016/S1293-2558(03)00011-6 ↗
4. Development of cobalt ferrite powder preparation employing the sol – gel technique and its structural characterization10.1016/j.jallcom.2010.07.015 ↗
5. Continuous hydrothermal synthesis and crystallization of magnetic oxide nanoparticles, 241010.1557/JMR.2002.0352 ↗
6. Synthesis and microstructure of cobalt ferrite nanoparticles10.1016/j.jcrysgro.2010.05.024 ↗
7. Ferrite Gas Sensors10.1109/JSEN.2010.2068285 ↗
8. Preparation and characterization of ferrites as gas sensor materials10.1023/A:1006716721984 ↗
9. Synthesis of cobalt ferrite core/metallic shell nanoparticles for the development of a specific PNA/DNA biosensor10.1016/j.jcis.2008.02.010 ↗
10. Catalytic removal of NOx and diesel soot over nanostructured spinel-type oxides10.1016/j.jcat.2006.05.023 ↗
11. Magnetic CoFe2O4 nanocrystal: a novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane10.1016/j.molcata.2009.03.010 ↗
12. Temperature dependent magnetic properties of CoFe2O4/CTAB nanocomposite synthesized by sol–gel auto-combustion technique10.1016/j.ceramint.2013.01.088 ↗
13. Hydrothermal synthesis of CoFe2O4 nanoplatelets and nanoparticles10.1016/j.matchemphys.2007.09.035 ↗
14. Studies on the magnetism of cobalt ferrite nanocrystals synthesized by hydrothermal method
15. Porosity appearance in cobalt ferrite and changes under the thermal treatment of co-precipitated iron (II) and cobalt (II) oxalates10.1016/j.micromeso.2004.04.023 ↗
16. CoFe2O4 nanoparticles prepared by the mechanochemical method10.1016/S0925-8388(00)00921-X ↗
17. Spinel cobalt ferrite by complexometric synthesis10.1016/j.jmmm.2005.01.011 ↗
18. Como fazer experimentos: pesquisa e desenvolvimento na ciência e na indústria
19. Optimizing the synthesis of cobalt aluminate pigment using fractional factorial design10.1016/j.ceramint.2014.08.125 ↗
20. High temperature conduction and methane conversion capability of BaCeO3 perovskite
21. Controlled synthesis of CoFe2O4 nano-octahedra10.1016/j.powtec.2014.01.080 ↗
22. Size-controlled high magnetization CoFe2O4 nanospheres and nanocubes using rapid one-pot sonochemical technique10.1016/j.ceramint.2013.09.109 ↗
23. Chemical control on the size and properties of nano NiFe2O4 synthesized by sol–gel autocombustion method10.1016/j.ceramint.2013.09.103 ↗
24. Phase transformations of iron oxides, oxohydroxides, and hydrous oxides in aqueous media10.1016/0001-8686(89)80009-0 ↗
25. Ratke · 2002
26. Ionic magnetic fluid based on cobalt ferrite nanoparticles: influence of hydrothermal treatment on the nanoparticle size10.1016/j.jmmm.2010.11.013 ↗
27. Ericksen · 1998
28. Developments of cobalt ferrite nanoparticles prepared by the sol–gel process10.1016/j.ceramint.2013.06.116 ↗
29. Effect of the thermal treatment on the magnetic and structural properties of cobalt ferrite particles10.1016/j.ceramint.2016.06.120 ↗
30. Rietveld structure refinement, cations distribution and magnetic features of CoFe2O4 nanoparticles synthesized by co-precipitation, hydrothermal, and combustion methods10.1016/j.ceramint.2016.01.032 ↗
31. Factors controlling magnetic properties of CoFe2O4nanoparticles synthesized by chemical co-precipitation: modeling and optimization using response surface methodology10.1016/j.ceramint.2016.07.049 ↗
32. Design of experiments in thermal spraying: a review10.1016/j.surfcoat.2008.04.031 ↗
33. A.M.Araujo, A.O.Sousa, J.F.Grilo, L.A.Camposa, F.A.Loureiro, D.Fagg, R.S.Dutra, D.Macedo, Preparation of one-step NiO/Ni-CGO composites using factorial design, Ceram. International doi: j.ceramint.2016.08.13110.1016/j.ceramint.2016.08.131 ↗
34. Synthesis of single-phase cobalt ferrite nanoparticles via a novel EDTA/EG precursor-based route and their magnetic properties10.1016/j.jallcom.2015.03.041 ↗
35. Controlled growth of large-area arrays of gadolinium-substituted cobalt ferrite nanorods by hydrothermal processing without use of any template10.1016/j.ceramint.2016.08.042 ↗
36. Synthesis of cobalt ferrite (CoFe2O4) nanoparticles using combustion, coprecipitation, and precipitation methods: a comparison study of size, structural, and magnetic properties10.1016/j.jmmm.2014.06.059 ↗
37. Synthesis and magnetic properties of cobalt ferrite (CoFe2O4) nanoparticles prepared by wet chemical route10.1016/j.jmmm.2006.06.003 ↗
38. The effects of synthesis variables on the magnetic properties of coprecipitated barium ferrite powders10.1016/S0304-8853(01)00857-5 ↗
39. Structural and magnetic characterizations of Cd substituted nickel ferrite nanoparticles10.1016/j.ceramint.2014.07.033 ↗
40. Low-temperature synthesis of lanthanum strontium cobalt ferrite by the citrate complex method adding oleic acid10.1016/j.apt.2015.06.006 ↗
41. Vasconcelos, Use of a design-of-experiments approach for preparing ceria–zirconia–alumina samples by sol–gel process10.1016/j.ceramint.2016.03.021 ↗