Synthesis and Processing of SnO2, CaSnO3 and Ca2SnO4 Nanopowders by Solid-State Reaction Technique

Document Type : Research Article


1 School of Materials Research, Nuclear Science and Technology Institution Karaj, Karaj, I.R. IRAN

2 Physics Group, Islamic Azad University, Karaj Branch, Karaj, I.R. IRAN


The nanopowders of SnO2, CaSnO3 and Ca2SnO4 in the size rang of 5-70 nm have been prepared using solid-state reaction technique. The technique is convenient and inexpensive in comparison to the conventional routes of compound prepared and processing where, many steps of mixing and annealing are involved. Formation of resultant compounds was explained on the basis of reaction taken place between SnCl4. 5H2O, CaCl2 and Ca(OH2). It was found that Tin oxide, calcium stannate and calcium orto stannate have been prepared at calcinations temperature 400 °C/4 h by weight ratio of (Sn:Ca) 2:1, 1:1 and 1:2, respectively. Characterization of species was carried out using X-ray diffraction, SEM and TGA analysis. Investigation of samples revealed that, agglomerations of well connected, small grains lumped together with large number of pores have been formed. The XRD pattern analysis has shown that the change in crystalline sizes after calcining at various temperatures. Due to change in weight ratio of Sn:Ca from  2:1 to 1:1, the crystal structure has been changed from tetragonal rutile to perovskite.


Main Subjects

[1] Zhouguang  Lu, J unfeng  Liu, Yougen Tang, Yadong Li, Inorganic Chemistry Communications, 7, 731(2004).
[2] Buchanan, R., “Ceramic Materials for Electronic Applications”, Marcel Dekker, New York, p. 69 (1986).
[3] Feng, Li, Liying Chen, Zhiqiang Chen, Jiaqiang Xu, Jianmin Zhu, Xinquan Xin, Materials Chemistry and Physics, 73, 335 (2002).
[4] Sharma, N., Cullity, B.D., Nyral, C., Electrochem. Commun., 4, 947 (2002).
[5] Tao, S., Gao, F., Liu, X., Sorensen, O.T., Sensors and Actuators B, 71, 223  (2000).
[6] Azad, A.M., Lucia Liew Woan Shyan, Pang Toh Yen, Jouranl of Alloys and Compounds, 282, 109 (1999).
[7] He, Z.Q., Li, X.H., Liu, E.H., Hou, Z.H., Deng, L.F., J. Cent. Sout. Univ., 10, 195 (2003).
[8] Novinrooz, A., Sarabadani, P., Garosi, J., Iran. J. Chem. Chem. Eng., 25, 31 (2006).
[9] Feng Li, Jiaqiang Xu, Xianghua Yu, Liying Chen, Jianmin Zhu, Zhengrong Yang, Xinquan Xin, Sensors and Actuators B, 81, 165 (2002).
[10] Yu, X. H., Jia, D. J., Yu, J. Q., Xin, X.Q., Xue, Z., Adv. Mater., 11, 941(1999).
[11] Bong Ki Min, Soon Doon Choi, Sensors and Actuators B, 99, 288 (2004).
[12] Mandal, K. D., Sasty, M. S., Parkash, O., J. Mater, Science Letter., 14, 560 (1995).
[13] Parkash, O., Mandal, K. D., Christopher, C. C., J. Material Science Letter., 13, 345 (1994).