Research ArticleOpen AccessGoogle Scholar indexed
Rietveld Refinement of Nanocrystalline LiFeO<sub>2</sub> Synthesized by Sol-Gel Method and Its Structural and Magnetic Properties
Department of Physics, Jawaharlal Nehru Technological University Hyderabad, College of Engineering, A.P., India
Department of Physics, Indur Institute of Engineering and Technology, Siddipet
Nanomagnetism Lab, Department of Physics and Astronomy, Seoul National University, Seoul, South Korea
Department of Physics, Faculty of Science, University of Zagreb, Bijenicka c., Zagreb, Croatia
Dept of Geo-Physics, Osmania University, Hyderabad, A. P., India
- 1 Department of Physics, Jawaharlal Nehru Technological University Hyderabad, College of Engineering, A.P., India
- 2 Department of Physics, Indur Institute of Engineering and Technology, Siddipet
- 3 Nanomagnetism Lab, Department of Physics and Astronomy, Seoul National University, Seoul, South Korea
- 4 Department of Physics, Faculty of Science, University of Zagreb, Bijenicka c., Zagreb, Croatia
- 5 Dept of Geo-Physics, Osmania University, Hyderabad, A. P., India
Journal of Crystallization Process and Technology·Volume 02 (2012)·Pages 152–155·Published 17 October 2012·DOI10.4236/jcpt.2012.24022
Copy link · social · email
Abstract
Nanocrystalline lithium iron oxide LiFeO 2 was synthesized using sol-gel method. Rietveld analysis was performed to confirm the different phases associated in the formation of LiFeO 2 . Quantitative Rietveld refinement revealed that sample contains: 39.9 wt% of cubic α – LiFeO 2 phase, 58.5 wt% of monoclinic β - LiFeO 2 and tetragonal 1.7 wt%. of γ - LiFeO 2 . The nanocrystalline nature of the prepared samples was confirmed by SEM analysis. The magnetic properties of LiFeO 2 showed ferromagnetic property at room temperature.
KeywordsNanoparticlesLiFeO<sub>2</sub>Structural and Magnetic Properties
- A. R. Armstrong, D. W. Tee, F. La Mantia, P. Novak and P. G. Bruce, “Synthesis of Tetrahedral LiFeO2 and Its Behavior as a Cathode in Rechargeable Lithium Batteries,” Journal of the American Chemical Society, Vol. 130, 2008, pp. 3554-3559. doi:10.1021/ja077651g
- M. S. Whittingham, “Lithium Batteries and Cathode Materials,” Chemical Reviews, Vol. 104, No. 10, 2004, pp. 4271-4302. doi:10.1021/cr020731c
- A. S. Arico, P. G. Bruce, B. Scrosati, J. M. Tarascon and W. Van Schalkwijk, “Nanostructured Materials for Advanced Energy Conversion and Storage Devices,” Nature Materials, Vol. 4, No. 5, 2005, pp. 366-377. doi:10.1038/nmat1368
- J. Kim and A. Manthiram, “Synthesis and Lithium Intercalation Properties of Nanocrystalline Lithium Iron Oxides,” Journal of the Electrochemical Society, Vol. 146, No. 12, 1999, pp. 4371-4374. doi:10.1149/1.1392645
- J. C. Anderson and M. Schieber, “Order-Disorder Transitions in Heat-Treated Rock-Salt Lithium Ferrite,” Journal of Physics and Chemistry of Solids, Vol. 25, No. 9, 1964, pp. 961-968. doi:10.1016/0022-3697(64)90033-2
- L. Liu, et al., “Alternating Current Susceptibility Study on the Cluster Glass Behavior in Disordered β-LiFeO2,” Journal of Applied Physics, Vol. 110, 2011, Article ID: 093912.
- S. Kohiki, et al., “Magnetic Cluster Behavior of α-LiFeO2 Related to the Cation Arrangements,” Japanese Journal of Applied Physics, Vol. 43, 2004, pp. L1232-L1235. doi:10.1143/JJAP.43.L1232
- M. Tabuchi, et al., “Effect of Cation Arrangement on the Magnetic Properties of Lithium Ferrites (LiFeO2) Prepared by Hydrothermal Reaction and Post-annealing Method,” Journal of Solid State Chemistry, Vol. 140, No. 2, 1998, p. 159. doi:10.1006/jssc.1998.7725
- M. Barre and M. Catti, “Neutron Diffraction Study of the β′ and γ Phases of LiFeO2,” Journal of Solid State Chemistry, Vol. 182, No. 9, 2009, pp. 2549-2554. doi:10.1016/j.jssc.2009.06.029
- F. Du, et al., “Unusual Magnetism Due to a Random Distribution of Cations in α-LiFeO2,” Journal of the Physical Society of Japan, Vol. 80, 2011, Article: 094705. doi:10.1143/JPSJ.80.094705
- Y. S. Lee, S. Sato, Y. K. Sun, K. Kobayakawa and Y. Sato, “A New Type of Orthorhombic LiFeO2 with Advanced Battery Performance and Its Structural Change During Cycling,” Journal of Power Sources, Vol. 119121, 2003, pp. 285-289.
- M. Hirayama, H. Tomita, K. Kubota, H. Ido and R. Kanno, “Synthesis and Electrochemical Properties of Nanosized LiFeO2 Particles with a Layered Rocksalt Structure for Lithium Batteries,” Materials Research Bulletin, Vol. 47, No. 1, 2012, pp. 79-84. doi:10.1016/j.materresbull.2011.09.024