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An electrochemical method for the synthesis of complex dispersed oxide system Al2O3–Fe2O3, based on the combined aluminum and iron anodic dissolution in aqueous solution containing chloride ions, has been suggested. The phase composition and morphology of Al2O3–Fe2O3 dispersed precipitate have been investigated by means of X-ray fluorescence, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The influence of the electrolysis mode on the characteristics of the synthesized oxide system has been shown. It is found that the direct current (DC) mode allows us to adjust the phase correlation in the precipitate and to obtain a particle size which is two or more times smaller than the particle size of the samples synthesized by means of the alternating current (AC).


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Electrochemical synthesis of nanosized iron oxide–alumina system

Show Author's information A. F. DRESVYANNIKOV( )I. O. GRIGORYEVAL. R. KHAYRULLINA
Kazan National Research Technological University (KNRTU), Kazan 420015, Russia

Abstract

An electrochemical method for the synthesis of complex dispersed oxide system Al2O3–Fe2O3, based on the combined aluminum and iron anodic dissolution in aqueous solution containing chloride ions, has been suggested. The phase composition and morphology of Al2O3–Fe2O3 dispersed precipitate have been investigated by means of X-ray fluorescence, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The influence of the electrolysis mode on the characteristics of the synthesized oxide system has been shown. It is found that the direct current (DC) mode allows us to adjust the phase correlation in the precipitate and to obtain a particle size which is two or more times smaller than the particle size of the samples synthesized by means of the alternating current (AC).

Keywords:

alumina, iron oxide, mixed oxide system, electrochemical synthesis, nanoparticles
Received: 11 September 2015 Revised: 22 October 2015 Accepted: 28 October 2015 Published: 19 January 2016 Issue date: June 2021
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Publication history

Received: 11 September 2015
Revised: 22 October 2015
Accepted: 28 October 2015
Published: 19 January 2016
Issue date: June 2021

Copyright

© The author(s) 2016

Acknowledgements

The authors thank the Ministry of Science and Education of Russia for financial support (an approved project No. 4.1584.2014/K of the competitive part of the government task to 2014–2016) and also Kazan National Research Technological University (KNRTU) for the possibility of using the equipment of the Center for Collective Use “Nanomaterials and Nanotechnologies”.

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