Synthesis of High Quality LaCoO3 Crystals Using Water Based Sol-Gel Method
International Journal of Materials Science and Applications
Volume 4, Issue 3, May 2015, Pages: 159-164
Received: Mar. 28, 2015; Accepted: Apr. 15, 2015; Published: Apr. 24, 2015
Views 6092      Downloads 363
Abdur Razzaque Sarker, Department of Physics, Rajshahi University, Rajshahi, Bangladesh; Center for Crystal Science and Technology, University of Yamanashi, Kofu, Yamanashi, Japan
Article Tools
Follow on us
Lanthanum cobaltite (LaCoO3) crystalline material is a promising material for its interesting electrical, magnetic, catalytic and thermoelectric properties. In this study, LaCoO3 powders were synthesized by water based sol-gel method using metal nitrates as precursors and citric acid as the chelating agent at room temperature. The dried powders were amorphous and their thermal decomposition occurs stepwise upon heating to 400 °C. Pure perovskite-type single phase LaCoO3 polycrystals are formed after heating at 600 °C. The pallets prepared from calcined powers were sintered at 1200 °C and crystalline pallets were characterized for investigation of electrical, optical and thermoelectric properties. The obtained results revealed that the prepared samples were highly crystalline with large cation ordering. The sol-gel method found to be efficient for much production of a lot of crystalline transition metal oxides at low cost.
Ceramics, Heat Treatment, Sol-Gel Method, Powder Diffraction, Optical Properties
To cite this article
Abdur Razzaque Sarker, Synthesis of High Quality LaCoO3 Crystals Using Water Based Sol-Gel Method, International Journal of Materials Science and Applications. Vol. 4, No. 3, 2015, pp. 159-164. doi: 10.11648/j.ijmsa.20150403.13
S. Sompech, A. Srion and A. Nuntiya, ScienceAsia, 38 (2012) 102-107.
Z. Yang, Y. Huang, B. Dong, HL Li and S.Q. Shi, Phys. Mater. Sci. Process 84 (2006)117-122.
L. Predoana, B. Malic, M. Kosec, M. Charata, M. Caldararu and M. Zaharescu, Journal of European Ceramic Society, 27 (2007) 4407-4411.
M. Kakihana, J. Sol-Gel Sci. Technol.6 (1996) 7-55.
T. H. Hsish, F. H. Jhong, D. T. Roy and Y. P. Fu, Ceramic Internationals 38 (2012) 1785 - 1791.
V. V. Kharton and F. M. B. Marques, Current Opinion in Solid State and Materials Science 6 (2002) 261-269.
I. Terasaki, Y. Sasago and K. Uchinokura, Phys. Rev. B 56 (1997) 12685-12687.
F. Li and J. F. Li, Ceramic international 37 (2011) 105-110.
M. Popa and M. Kakihana, Solid State Ionics 151 (2002) 251– 257.
O. Madelung, U. Rossler and M. Schulz, LaCoO3 crystal structure and physical properties, J. Ternary Compounds, Organic Semiconductors, 41 E(2010) 17 I-17E.
O. Madelung, U. Rossler and M. Schulz, Crystal structure study of Perovskite-type LaCoO3 electro-catalyst synthesized by Pechini method, International Forum on Strategic Technology (IFOST) 1 (2011) 61 – 64.
M. Abbate, R. Potze and G. A. Sawatzky, A. Fujimori, Phys. Rev. B 49 (1994) 7210-7218.
P. Ravindran, P. A Korzhavyi, H. Fjellvag and A. Kjekshus, Phys. Rev. B 60 (1999) 16423-16434.
D. Berger, N. van Landschoat, C. Ionica, F. Papaand V. Fruth, J. Optoelectron. Adv. Mater. 5 (2003) 719.
C. Singand M. Rakesh, Indian Journal of Engineering and Materials Sciences, 16 (2009) 288-290.
P. Feminaand P. Sanjay, Research Journal of Resent Sciences, 1 (2012) 178 – 184.
M. Yilmaz, S. Aydin, G. Turgut, R. Dilber andM. Ertugrul, Prog. Nanotech. Nanometer, 1 (1), (2012) 5.
M. Yilmaz, G. Turgut, S. Aydinand M. Ertugrul, J. Chem. Soc. Pak. 34 (2012) 283.
W. D. Kingegy, Introduction to Ceramic( JohnWilely& Sons, Inc. New York, 1967).
W. Wang, C. Shi, X. Su, H. Xing andJ. Zhang, Mater. Res. Bull. 41 (2006) 2018.
R. Robert, L. Bocher, B. Sipos, M. Dobeliand A. Weidenkaff, Progress in Solid State Chemistry 35 (2007) 447–455.
R. Funahashiand S. Urata, International Journal of Applied Ceramic Technology, 4 (2007) 297–307.
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186