Study on the Preparation of BaTiO₃ Nano Powder via Non-Hydrolytic Sol-Gel Method

Abstract:

BaTiO₃ (BT) nano powder was prepared via non-hydrolytic sol-gel (NHSG) method by using barium acetate, titanium tetrabutoxide as precursors, glycerol and ethanol as solvents. The samples were characterized by DTA-TG, XRD, FT-IR and TEM. The influences of heat treatment temperature on the morphology and the microstructure of powder were studied, and the mechanism of low temperature synthesis was discussed. In addition, the de-esterification action between the precursors was also described in detail. The results show that the formation of Ba-O-Ti bond in the xerogel via NHSG route is duo to the de-esterification polycondensation of barium acetate and titanium tetrabutoxide, which plays the key role in the low temperature synthesis of BT powder. With the temperature rising to 700 °C, BT nano powder with good dispersion and even size distribution can be acquired and the average particle diameter is about 25 nm. Overlow and overhigh heat treatment temperatures are both not beneficial to the preparation of BT nano powder.

• Periodical: Advanced Materials Research (Volume 1104)
• Pages: 107-110
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1104.107
• Online since: May 2015
• Authors: Zhi Peng Shao*, Wei Hui Jiang, Guo Feng, Jian Min Liu, Li Feng Miao, Quan Zhang, Qian Wu
• Keywords: BaTiO₃, De-Esterification, Nano Powder, Non-Hydrolytic Sol-Gel Method

References

[1] J. Takahashi, H. Nakanoa, K. Kageyamab, Fabrication and dielectric properties of barium titanate-based glass ceramics for tunable microwave LTCC application, J. Eur Ceram Soc 26 (2006) 2123-2127.

DOI: 10.1016/j.jeurceramsoc.2005.09.070

[2] I.P. Selvam, V. Kumar, Synthesis of nanopowders of (Ba1–xSrx)TiO3, J. Mater Lett 56 (2002) 1089-1092.

DOI: 10.1016/s0167-577x(02)00684-5

[3] B. Wu, L. Zhang, X. Yao, Low temperature sintering of BaxSr1–xTiO3 glass-ceramic, J. Ceram Int 30 (2004) 1757-1761.

DOI: 10.1016/j.ceramint.2003.12.130

[4] L. Zhang, H. Liang, Y.X. Xu, The microstructure of barium strontium titanate dielectric materials and basic properties, J. Piezo & acoust 24 (2002) 468-72.

[5] M.T. Buscaglia, M. Bassoli, V. Buscaglia, Solid-state synthesis of ultrafine BaTiO3 powders from nanocrystalline BaCO3 and TiO2, J. Am Ceram Soc 88 (2005) 2374-2379.

DOI: 10.1111/j.1551-2916.2005.00451.x

[6] Y. Zhang, L.Q. Wang, D.F. Xue, Molten salt route of well dispersive barium titanate nanoparticles, J. Powder Technol 217 (2012) 629-633.

DOI: 10.1016/j.powtec.2011.11.043

[7] P. Pinceloup, C. Courtois, A. Leriche, Hydrothermal synthesis of nanometer-sized barium titanate powders: Control of barium/titanium ratio, sintering, and dielectric properties, J. Am Ceram Soc 82 (1999) 3049-3056.

DOI: 10.1111/j.1151-2916.1999.tb02201.x

[8] L. Simon-Seveyrat, A. Hajjaji, Y. Emiane, Re-investigation of synthesis of BaTiO3 by conventional solid-state reaction and oxalate coprecipitation route for piezoelectric applications, J. Ceram Int 33 (2007) 35-40.

DOI: 10.1016/j.ceramint.2005.07.019

[9] Y. Badr, A. Salah, I.K. Battisha, Effect of europium ion concentrations on the photoluminescence emission of nano-crystalline BaTiO3 prepared by sol-gel technique, J. Sol-Gel Sci Techn 34 (2005) 219-226.

DOI: 10.1007/s10971-005-2518-3

[10] C.L. Mao, X.L. Dong, T. Zeng, Nonhydrolytic sol–gel synthesis and dielectric properties of ultrafine-grained and homogenized Ba0. 70Sr0. 30TiO3, J. Ceram Int 34 (2008) 45-49.

DOI: 10.1016/j.ceramint.2006.08.002

[11] L.L. Hench, J.K. West. The sol-gel process, J. Chem Rev 90 (1990) 33-72.

[12] W.H. Jiang, H.Y. Wei, G. Feng, Effect of oxygen donor alcohols on low temperature nonhydrolytic sol-gel synthesis of aluminum titanate, J. Chin Ceram Soc 36 (2008) 6-11.

[13] Y.T. Wu, X.F. Wang, C.L. Yu, Preparation and characterization of Barium Titanate nano-powders by pechini sol-gel method, J. Mater Manuf Processes 27 (2012) 1329-1333.

DOI: 10.1080/10426914.2012.663148

[14] M.N. Kamalasanan, N.D. Kumar, S. Chandra, Structural and microstructural evolution of barium titanate thin films deposited by the solgel process, J. Appl Phys 76 (1994) 4603-4609.

DOI: 10.1063/1.358493

[15] Z.X. Chen, F.Q. Zhou, X.S. Pang, The infrared absorption spectra of BT gel, J. Inorg Mater 7 (1992) 168-174.