Morphology and magnetic properties of Fe x Co1−x /Co y Fe3−y O4 nanocomposites prepared by surfactants-assisted-hydrothermal process
Source abstract
Abstract
Recently, we have demonstrated the successful synthesis of FexCo1−x/CoyFe3−yO4 nanocomposites with various alkaline solutions by using surfactants-assisted-hydrothermal (SAH) process. In this article, the synthesis of FexCo1−x/CoyFe3−yO4 nanocomposites with their sizes varying between 20 nm and 2 μm was reported. X-ray powder diffraction (XRD) analyses showed that the surfactants, pH, precipitator, and temperature of the system play important roles in the nucleation and growth processes. The magnetic properties tested by vibrating sample magnetometer (VSM) at room temperature exhibit ferromagnetic behavior of the nanocomposites. These FexCo1−x/CoyFe3−yO4 nanocomposites may have a potential application as magnetic carriers for drug targeting because of their excellent soft-magnetic properties.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Nanomaterials for catalytic reactions · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
Show source-provided references
1. Berkowitz AE, Shuele WJ, Flanders PJ (1968) Influence of crystallite size on the magnetic properties of acicular γ-Fe2O3 particles. J Appl Phys 39:1261–126310.1063/1.1656256 ↗
2. Caillof T, Pourroy G, Stuerga D (2004) Microwave hydrothermal flash synthesis of nanocomposites Fe–Co cobalt alloy/cobalt ferrite. J Solid State Chem 177:3843–3848. doi: 10.1016/j.jssc.2004.06.00910.1016/j.jssc.2004.06.009 ↗
3. Cornell RM, Schwertmann U (1996) The iron oxide: structure, properties, reactions, occurrence and uses. VCH, Weinheim
4. Cullity BD, Stock SR (2001) Elements of X-ray diffraction, 3rd edn. Prentice Hall, London, UK
5. Estournes C, Cornu N, Guille JL (1994) Reduction of copper in soda-lime silicate glass by hydrogen. J Non-Cryst Solids 170:287–294. doi: 10.1016/0022-3093(94)90058-210.1016/0022-3093(94)90058-2 ↗
6. Fröba M, Köhn R, Bouffaud G, Richard O, Van Tendeloo G (1999) Fe2O3 nanoparticles within mesoporous MCM-48 silica. In situ formation and characterization. Chem Mater 11:2858–286510.1021/cm991048i ↗
7. Hunter RJ (1987) Foundations of colloid science, vol 1. Oxford University Press, Oxford, p 420
8. Läkamp S, Pourroy G (1996) Influence of Co/Fe ratio on the synthesis of cobalt containing metal–spinel composites by using iron disproportionation. J Solid State Chem 123:109–11410.1006/jssc.1996.0158 ↗
9. Li D, Kaner RB (2006) Shape and aggregation control of nanoparticles: not shaken, not stirred. J Am Chem Soc 128:968–975. doi: 10.1021/ja056609n10.1021/ja056609n ↗
10. Lopez-Quintela MA, Rivas J (1993) Chemical reactions in microemulsions: a powerful method to obtain ultrafine particles. J Colloid Interface Sci 158:446–451. doi: 10.1006/jcis.1993.127710.1006/jcis.1993.1277 ↗
11. Martinez B, Obradors X, Balcells L, Rouanet A, Monty C (1998) Low temperature surface spin–glass transition in γ-Fe2O3 nanoparticles. Phys Rev Lett 80:181–184. doi: 10.1103/PhysRevLett.80.18110.1103/PhysRevLett.80.181 ↗
12. Osso D, Tillement O, Le Caer G, Mocellin AJ (1998) Alumina-alloy nanocomposite powders by mechanosynthesis. Mater Sci 33:3109–3119. doi: 10.1023/A:100434380614410.1023/A:1004343806144 ↗
13. Parker FT, Foster MW, Margulies DT, Berkowitz AE (1993) Spin canting, surface magnetization, and finite-size effects in γ-Fe2O3 particles. Phys Rev B 47:7885. doi: 10.1103/PhysRevB.47.788510.1103/PhysRevB.47.7885 ↗
14. Pelecky DLL, Rieke RD (1996) Magnetic properties of nanostructured materials. Chem Mater 8:1770–1783. doi: 10.1021/cm960077f10.1021/cm960077f ↗
15. Peng ZA, Peng X (2001) Mechanisms of the shape evolution of CdSe nanocrystals. J Am Chem Soc 123:1389–1395. doi: 10.1021/ja002776610.1021/ja0027766 ↗
16. Peng ZA, Peng X (2002) Nearly monodisperse and shape-controlled CdSe nanocrystals via alternative routes: nucleation and growth. J Am Chem Soc 124:3343–3353. doi: 10.1021/ja017316710.1021/ja0173167 ↗
17. Tihay F, Roger AC, Kiennemann A, Lakamp S, pourroy G (2000) Fe–Co based metal/spinel to produce light olefins from syngas. Catal Today 58:263–26910.1016/S0920-5861(00)00260-1 ↗
18. Tihay F, Roger AC, Pourroy G, Kiennemann A (2002) Role of the alloy and spinel in the catalytic behaviour of Fe–Co/cobalt magnetite composites under CO and CO2 hydrogenation. Energy Fuels 16:1271–1276. doi: 10.1021/ef020059m10.1021/ef020059m ↗
19. Tyan HL, Liu YC, Wei KH (1999) Thermally and mechanically enhanced clay/polyimide nanocomposite via reactive organoclay. Chem Mater 11:1942–1947. doi: 10.1021/cm990187x10.1021/cm990187x ↗
20. Voit W, Kim DK, Zapka W, Muhammed M, Rao KV (2001) Magnetic behaviour of coated superparamagnetic iron oxide nanoparticles in ferrofluids. Mater Res Soc 676:781–78610.1557/PROC-676-Y7.8 ↗
21. Zhao L, Zhang H, Xin Y, Sun S, Yu S (2007) Morphology-controlled synthesis of magnetites with nanoporous structures and excellent magnetic properties. Chem Mater 20:198–204. doi: 10.1021/cm702352y10.1021/cm702352y ↗