Sreeremya, Thadathil S and Krishnan, Asha and Mohamed, A Peer and Hareesh, U S and Ghosh, Swapankumar (2014) Synthesis and characterization of cerium oxide based nanofluids: An efficient coolant in heat transport applications. Chemical Engineering Journal , 255. pp. 282-289. ISSN 1385-8947

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Monodispersed oleic acid capped ceria nanoparticles were prepared by a facile one-step strategy involving thermal decomposition of a cerium oleate complex in an organic solvent with high boiling point. The nanocrystals synthesized by this relatively faster and inexpensive route have been optimized and were characterized by X-ray, infrared spectroscopy, dynamic light scattering and transmission electron microscopy. The surface-capped ceria nanoparticles exhibited excellent dispersity in conventional organic solvents and were utilized for the preparation of transformer oil based nanofluids. The suitability of the nanofluids thus obtained as heat transfer fluid was evaluated by measuring the stability of nanofluids, thermal conductivity, viscosity and particle size. The effect of particle loading and temperature on the thermal conductivity of the oil based nanofluids was studied. Oil-based nanofluids containing ceria nanoparticles showed shear-thinning behavior and produced similar to 14.6% enhancement in thermal conductivity at 50 degrees C with 0.7 vol% solid loading. (C) 2014 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 18 Nov 2014 10:37
Last Modified: 25 Nov 2014 10:34

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