Biswas, M and Bandyopadhyay, Siddhartha (2014) Nano-crystalline Pr3+-ceria powder by urea-formaldehyde gel combustion route. Advanced Powder Technology, 25 (2). pp. 536-542. ISSN 0921-8831

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Abstract

Nanosized ceria powder has been successfully prepared through gel combustion route, using urea-formaldehyde as fuel for praseodymium doping. DSC-TGA was carried out to analyse the proceeding of combustion reaction whereas XRD, FESEM, TEM and UV-Vis spectroscopic studies were carried out to evaluate the properties of the synthesized materials. This method is able to insert Pr3+ in ceria structure, as evidenced by the increasing trend of lattice parameter with dopant concentration. The materials produced were nanostructured, polycrystalline with many grains constituting nanospheres. Presence of grains with different morphology is evidenced through TEM observation. Band gap study shows an obvious blue shift in absorption pattern with dopant concentration. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Non-Oxide Ceramics & Composites
Depositing User:	Bidhan Chaudhuri
Date Deposited:	12 Dec 2014 10:54
Last Modified:	12 Dec 2014 10:54
URI:	http://cgcri.csircentral.net/id/eprint/2615

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