Effects of synthetic explanatory variable on saturation magnetization of colloidal nanomagnetite slurry

Bagheri, S. and Ramimoghadam, D. and TermehYousefi, A. and Abd Hamid, S.B. (2015) Effects of synthetic explanatory variable on saturation magnetization of colloidal nanomagnetite slurry. International Journal of Hydrogen Energy, 40 (46). pp. 16178-16183. ISSN 0360-3199,

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Official URL: DOI: 10.1016/j.ijhydene.2015.09.050

Abstract

In this contribution, stable nanomagnetite slurry have been successfully prepared by coprecipitation method. The synthesis parameters, such as reaction temperature, heating time, surfactant concentration and precipitating agent addition rate affected magnetic properties of synthetic nanomagnetite slurries were also investigated. We discovered the optimum reaction parameters based on the highest saturation magnetization obtained under our experimental condition to disperse magnetite nanoparticles in the aqueous medium using dodecanoic acid as a surfactant. The highest saturation magnetization was achieved when 0.5:1 mole ratio of dodecanoic acid to magnetite was used and NH4OH with an addition rate of 5 ml min(-1) was added to the solution while time and temperature for heating were 45 min at 80 degrees C. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Nanomagnetite slurry; Saturation magnetization; Precipitating agent; Addition rate; Reaction temperature; Heating time
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Depositing User: Mrs. Siti Mawarni Salim
Date Deposited: 29 Jul 2016 07:59
Last Modified: 08 Jul 2017 03:08
URI: http://eprints.um.edu.my/id/eprint/16192

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