BiFeO₃ Powders Synthesized by Different Sol-Gel Methods

Abstract:

The multiferroic BiFeO₃ powders with perovskite structure were synthesized by sol-gel auto-combustion and conventional sol-gel methods, respectively. As-prepared powders were characterized by XRD, SEM and VSM techniques to investigate phase structure, microstructure and magnetic properties. The results show that the pure phase BiFeO₃ powders are obtained successfully by sol-gel auto-combustion after calcining at 650°C for 2h and leaching by HNO₃. Compared with conventional sol-gel method which got pure phase BiFeO₃ powders at 800°C for 3h, the sol-gel auto-combustion technique can get more pure powders at low temperature, short time and low cost. The particle sizes of the BiFeO₃ powders are smaller and well distributed by the sol-gel auto-combustion method than that of the conventional sol-gel method. Furthermore, the magnetic properties at room temperature prepared by the sol-gel auto-combustion methods are significant higher than that of conventional sol-gel method.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 84-88
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.84
• Online since: July 2016
• Authors: Li Bao, Xi Wei Qi*, Bo Ni, Min Zhang, Rui Bin Mei
• Keywords: Auto-Combustion, BiFeO₃ Powder, Sol-Gel

References

[1] N.A. Spaldin and M. Fiebig, The renaissance of magnetoelectric multiferroics, Sci. 309 (2005) 391-392.

DOI: 10.1126/science.1113357

[2] W. Eerenstein, N.D. Mathur and J.F. Scott, Multiferroic and magnetoelectric materials, Nature 442 (2006) 759-765.

DOI: 10.1038/nature05023

[3] S.W. Cheong, M. Mostovoy, Multiferroics a magnetic twist for ferroelectricity, Nat. Mater. 6 (2007) 13-20.

DOI: 10.1038/nmat1804

[4] N.A. Hill, Why are there so few magnetic ferroelectrics, J. Phys. Chem. 104 (2000) 6694-6709.

DOI: 10.1021/jp000114x

[5] J.F. Scott, Multiferroic memories, Nat. Mater. 6 (2007) 256-257.

[6] C. Michel, M. Moreau, G.D. Achenbechi, R. Gerson, and W.J. James, The atomic structure of BiFeO3, Solid State Comm. 7 (1969) 701-704.

DOI: 10.1016/0038-1098(69)90597-3

[7] G. Catalan and J.F. Scott, Physics and applications of bismuth ferrite, Adv. Mater. 21 (2009) 2463-2485.

DOI: 10.1002/adma.200802849

[8] G.D. Achenbach and R. Gerson, Preparation of single-phase polycrystalline BiFeO3, J. Am. Ceram. Soc. (1967) 437.

[9] M.M. Kumar, V.R. Palkar, K. Srinivas and S.V. Suryanarayana, Ferroelectricity in a pure BiFeO3 ceramic, Appl. Phys. Lett. 76 (2000) 2764.

DOI: 10.1063/1.126468

[10] D. Kothari, V. R. Reddy, V. G. Sathe, A. Gupta, A. Banerjee and A. M. Awasthi, Raman scattering study of polycrystalline magnetoelectric BiFeO3, J. Magn. Magn. Mater. 320 (2008) 548-552.

DOI: 10.1016/j.jmmm.2007.07.016

[11] J.K. Kim, S.S. Kim and W.J. Kim, Sol–gel synthesis and properties of multiferroic BiFeO3, Mater. Lett. 59 (2005) 4006-4009.

DOI: 10.1016/j.matlet.2005.07.050

[12] F. Chen, Q. F. Zhang, J. H. Li, Y. J. Qi, C. J. Lu, X. B. Chen, X. M. Ren and Y. Zhao, Sol-gel derived multiferroic BiFeO3 ceramics with large polarization and weak ferromagnetism, Appl. Phys. Lett. 89 (2006) 3.

DOI: 10.1063/1.2345603

[13] J.H. Xu, H. Ke, D.C. Jia, W. Wang and Y. Zhou, Low-temperature synthesis of BiFeO3 nanopowders via a sol–gel method, J. Alloy. Compd. 472 (2009) 473-477.

DOI: 10.1016/j.jallcom.2008.04.090

[14] L.C. Wang, Z.H. Wang, S.L. He, X. Li, P.T. Lin, J.R. Sun and B.G. Shen, Enhanced magnetization and suppressed current leakage in BiFeO3 ceramics prepared by spark plasma sintering of sol–gel derived nanoparticles, Physica B. 407 (2012) 1196-1202.

DOI: 10.1016/j.physb.2011.12.136

[15] X.W. Qi, H.J. Xu, X.Y. Zhang and J.Q. Qi, Synthesis of multiferroic BiFeO3 powders by sol-gel auto-combustion, Adv. Mater. Res. 412 (2011) 99-102.

DOI: 10.4028/www.scientific.net/amr.412.99

[16] S. Godara, N. Sinha, G. Ray and B. Kumar, Combined structural, electrical, magnetic and optical characterization of bismuth ferrite nanoparticles synthesized by auto-combustion route, J. As. Ceram. Soc. 2 (2014) 416-421.

DOI: 10.1016/j.jascer.2014.09.001

[17] A. Jaiswal, R. Das, K. Vivekanand, P.M. Abraham, S. Adyanthaya, and P. Poddar, Effect of reduced particle size on the magnetic properties of chemically synthesized BiFeO3 nanocrystals, J. Phys. Chem. 114 (2010) 2108-2115.

DOI: 10.1021/jp910745g

[18] Y.P. Wang, L. Zhou, M.F. Zhang, X.Y. Chen, J.M. Liu and Z.G. Liu, Room-temperature saturated ferroelectric polarization in BiFeO3 ceramics synthesized by rapid liquid phase sintering, Appl. Phys. Lett. 84 (2004) 1731.

DOI: 10.1063/1.1667612

[19] H. Ke, W. Wang, Y. Wang, J. Xu, D. Jia, Z. Lu and Y. Zhou, Factors controlling pure-phase multiferroic BiFeO3 powders synthesized by chemical co-precipitation, J. Alloy. Compd. 509 (2011) 2192-2197.

DOI: 10.1016/j.jallcom.2010.09.213