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A Comparative Study on Spinel Iron-cobalt Oxide Prepared by Co-precipitation and Hydrothermal Routes

By Y. Hammiche-Bellal, A. Djadoun, L. Meddour-Boukhobza and A. Barama

Abstract

Spinel iron-cobalt oxide was synthetized by coprecipitation and hydrothermal process. The nanostruc-tures of the prepared samples were characterized as functions of the calcination temperature and the hy-drothermal synthesis time, using X-ray powder diffractometry (XRD) and nitrogen adsorption–desorption technique ( BET, BJH ). Using chloride salts as start materials and both of sodium hydroxide and ammo-nia as precipitating agents; The results show that the CoFe2O4 obtained has a mesoporous structure with a pore distribution strongly depending on the experimental conditions. The crystallite size and lattice pa-rameter showed a same variation as function of ( i ) the calcination temperature in the coprecipitation method, ( ii ) the synthesis time in the hydrothermal process.\ud When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3509

Topics: Iron-cobalt spinel, Hydrothermal synthesis, Co-precipitation
Publisher: Sumy State University
Year: 2013
OAI identifier: oai:essuir.sumdu.edu.ua:123456789/35094
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