Synthesis of α-Fe2O3-functionalised graphene oxide nanocomposite by a facile low temperature method and study of its magnetic and hyperfine properties
Source abstract
Abstract
Abstract Reduced graphene oxide/α-Fe 2 O 3 nanocomposites were synthesized by a simple sol–gel method. Initially, the samples were investigated by X-ray diffraction, high resolution transmission electron microscopy and Raman spectroscopy. High resolution transmission electron micrographs indicate that the magnetic nanoparticles are well dispersed in the reduced graphene oxide sheet-like structure. Fourier transform infrared spectroscopy studies corroborate the results obtained by X-ray diffraction. Temperature as well as field dependent magnetic measurements revealed ferromagnetism in the pristine α-Fe 2 O 3 as well as in the nanocomposite sample that is attributed to surface canted spins and defects present in the samples. The enhanced value of coercivity in case of the nanocomposite sample could be ascribed to the Ruderman–Kittel–Kasuya–Yosida type of interaction between the isolated reduced graphene oxide spin and the magnetic ions. Presence of super paramagnetic doublet as well as sextet patterns related to hematite phase is confirmed by the 57 Fe-Mossbauer spectroscopy.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Iron oxide chemistry and applications · Graphene research and applications · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
Show source-provided references
1. Design investigation on millimeter wave ferrite phase shifter in substrate integrated waveguide10.2528/PIER03082801 ↗
2. Microwave applications of soft ferrites10.1016/S0304-8853(00)00106-2 ↗
3. Exploring the magnetic properties of cobalt-ferrite nanoparticles for the development of a rare-earth-free permanent magnet10.1021/acs.chemmater.5b01034 ↗
4. Monolayer assembly of ferrimagnetic CoxFe3−xO4 nanocubes for magnetic recording10.1021/nl500904a ↗
5. Fabrication and microwave absorbing properties of Ni–Zn spinel ferrites10.1016/j.jallcom.2009.01.130 ↗
6. Evolution and possible storage of information in a magnetite system of significance for brain development10.1016/j.mehy.2011.03.004 ↗
7. Single crystalline porous hematite nanorods: Photocatalytic and magnetic properties10.1021/jp206958g ↗
8. Synthesis of nanocrystalline Ni–Zn ferrites by combustion method with no postannealing route10.1063/1.3337689 ↗
9. Current trends of the magnetoelectric effect10.1140/epjb/e2009-00266-4 ↗
10. α-Fe2O3 Nanotubes in gas sensor and lithium-ion battery applications10.1002/adma.200401101 ↗
11. Quasicubic α-Fe2O3 nanoparticles with excellent catalytic performance10.1021/jp056617q ↗
12. Controlled synthesis, magnetic and sensing properties of hematite nanorods and microcapsules10.1016/j.colsurfa.2011.02.026 ↗
13. Synthesis, morphology, microstructure and magnetic properties of hematite submicron particles10.1016/j.jallcom.2011.04.117 ↗
14. Magnetic properties of hematite (α-Fe2O3) nanoparticles prepared by hydrothermal synthesis method10.1016/j.apsusc.2014.08.193 ↗
15. Hematite (α-Fe2O3) with Various morphologies: ionic liquid-assisted synthesis, formation mechanism, and properties10.1021/nn900941e ↗
16. Facile route for the fabrication of porous hematite nanoflowers: its synthesis, growth mechanism, application in the lithium ion battery, and magnetic and photocatalytic properties10.1021/jp0768773 ↗
17. Experimental observation of quantum Hall effect and Berry’s phase in graphene10.1038/nature04235 ↗
18. Graphene nanomesh by ZnO nanorod photocatalysts10.1021/nn1007429 ↗
19. Facile and novel electrochemical preparation of a graphene–transition metal oxide nanocomposite for ultrasensitive electrochemical sensing of acetaminophen and phenacetin10.1039/C3NR03620K ↗
20. Nanostructured reduced graphene oxide/Fe2O3 composite as a high-performance anode material for lithium ion batteries10.1021/nn200493r ↗
21. Immobilized graphene-based composite from asphalt: facile synthesis and application in water purification10.1016/j.jhazmat.2012.12.022 ↗
22. Solvothermal synthesis of MnFe2O4-graphene composite-investigation of its adsorption and antimicrobial properties10.1016/j.apsusc.2014.11.096 ↗
23. Adverse effects of graphene incorporated in TiO2 photocatalyst on minuscule animals under solar light irradiation10.1039/c2jm35228a ↗
24. Nanostructured Fe2O3–graphene composite as a novel electrode material for supercapacitors10.1007/s10008-011-1620-4 ↗
25. One step synthesis of graphene oxide-magnetic nanoparticle composite10.1021/jp909756r ↗
26. Room-temperature ferromagnetism of graphene10.1021/nl802810g ↗
27. Local defects and ferromagnetism in graphene layers10.1103/PhysRevB.72.155121 ↗
28. Defect-induced magnetism in graphene10.1103/PhysRevB.75.125408 ↗
29. Dual origin of defect magnetism in graphene and its reversible switching by molecular doping10.1038/ncomms3010 ↗
30. Reduced graphene oxide–metal/metal oxide composites: facile synthesis and application in water purification10.1016/j.jhazmat.2010.11.100 ↗
31. Magnetite/reduced graphene oxide nanocomposites: one step solvothermal synthesis and use as a novel platform for removal of dye pollutants10.1007/s12274-011-0111-3 ↗
32. Preparation of graphitic oxide10.1021/ja01539a017 ↗
33. A least squares spectral curve fitting routine for strongly overlapping Lorentzians or Gaussians10.1016/0010-4655(75)90028-4 ↗
34. Facile Synthesis and characterization of graphene nanosheets10.1021/jp710931h ↗
35. Electrochemical performance of graphene nanosheets as anode material for lithium-ion batteries10.1016/j.elecom.2009.04.036 ↗
36. Electrochemical properties of graphene paper electrodes used in lithium batteries10.1021/cm900764n ↗
37. Cullity · 1978
38. Fabrication of α-Fe2O3 nanorod/RGO composite: a novel hybrid photocatalyst for phenol degradation10.1021/am402487h ↗
39. Magnetically addressable fluorescent Fe3O4/ZnO nanocomposites: structural, optical and magnetization studies10.1016/j.jpcs.2013.01.012 ↗
40. Lithium aluminum hydride as reducing agent for chemically reduced graphene oxides10.1021/cm300382b ↗
41. Synthesis of graphene nanosheets via oxalic acid-induced chemical reduction of exfoliated graphite oxide10.1039/C1RA00934F ↗
42. Reduction of graphene oxide via l-ascorbic acid10.1039/B917705A ↗
43. Reduction of graphene oxide through a green and metal-free approach using formic acid10.1016/j.diamond.2013.05.003 ↗
44. Nanostructured Fe2O3–graphene composite as a novel electrode material for supercapacitors10.1007/s10008-011-1620-4 ↗
45. Low temperature growth of highly nitrogen-doped single crystal graphene arrays by chemical vapor deposition10.1021/ja302483t ↗
46. NiO nanosheets grown on graphene nanosheets as superior anode materials for Lithium-ion batteries10.1039/c1nr10070j ↗
47. Tunable properties of magneto-optical Fe3O4/CdS nanocomposites on size variation of the magnetic component10.1016/j.matchemphys.2014.11.043 ↗
48. Magnetic memory and coupling between spin canted and defect magnetism in hematite10.1029/2006JB004555 ↗
49. Structural, optical, hyperfine and magnetization studies of ZnO encapsulated α-Fe nanoparticles10.1016/j.materresbull.2014.09.004 ↗
50. Effects of magnetite nanoparticles on optical properties of zinc sulfide in fluorescent-magnetic Fe3O4/ZnS nanocomposites10.1016/j.powtec.2014.01.076 ↗
51. Signature of exchange bias and spin-glass like phenomena in Fe/CoO nanocomposite10.1063/1.4795441 ↗
52. Morin transition in hematite: size dependence and thermal hysteresis10.1029/2008GC002110 ↗
53. Magnetic properties of graphite oxide and reduced graphene oxide10.1016/j.physe.2014.07.014 ↗
54. Magnetism in disordered graphene and irradiated graphite10.1103/PhysRevLett.101.037203 ↗
55. Limits on intrinsic magnetism in graphene10.1103/PhysRevLett.105.207205 ↗
56. Microwave synthesis of magnetically separable ZnFe2O4-reduced graphene oxide for waste water treatment10.1016/j.ceramint.2013.12.037 ↗
57. Graphene oxide with improved electrical conductivity for supercapacitor electrodes10.1016/j.apsusc.2011.12.015 ↗
58. Kittel · 1987
59. Magnetic composites of CoFe2O4 nanoparticles in a poly(aniline) matrix: enhancement of remanence ratio and coercivity10.1016/j.synthmet.2014.12.003 ↗