Banerjee, S and Kumar, A and Sujatha Devi, P (2011) Preparation of nanoparticles of oxides by the citrate-nitrate process Effect of metal ions on the thermal decomposition characteristics. Journal of Thermal Analysis and Calorimetry, 104 (3). 859 -867. ISSN 1388-6150

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Abstract

This paper reports preparation of nanoparticles of oxides by the citrate-nitrate process and the effect of metal ions on the thermal decomposition characteristics of the corresponding citrate-nitrate gel precursors. In order to understand the effect of metal ions on the thermal decomposition characteristics of the precursors, we have prepared a series of single component oxides such as MO, where M = Zn, MO(2), where M = Sn, Ce, Zr, and M(2)O(3) where M = Al, Fe, Bi. In all the cases the citrate to nitrate ratio was fixed at 0.3. In order to ascertain the decomposition characteristics of the gel samples, TG/DTA studies were performed on the dried gel samples. After complete physico-chemical characterization of the precursors and the calcined products, it could be concluded that the nature of decomposition of the precursors depends largely on the nature of the metal ions. Finally, the advantages of the citrate-nitrate process such as its high degree of reproducibility, its potential for large-scale production of nano-crystalline ceramic oxide powders and its lower cost could be established based on a series of experiments and examples.

Item Type:	Article
Subjects:	Engineering Materials > Oxides
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Jan 2012 12:00
Last Modified:	30 Mar 2016 05:34
URI:	http://cgcri.csircentral.net/id/eprint/69

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