Direct ultrasonic-assisted synthesis of sphere-like nanocrystals of spinel CO3O4 and Mn3O4

A simple sonochemical method was developed to synthesize uniform sphere-like or cubic Co(3)O(4) and Mn(3)O(4) nanocrystals by using acetate salts and sodium hydroxide or tetramethylammonium hydroxide (TMAH) as precursors. Influence of some parameters such as time of reaction, alkali salts, and power...

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Bibliographic Details
Published in:Ultrasonics sonochemistry 2009, Vol.16 (1), p.124-131
Main Authors: ASKARINEJAD, Azadeh, MORSALI, Ali
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Ultrasonic chemistry
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Summary:A simple sonochemical method was developed to synthesize uniform sphere-like or cubic Co(3)O(4) and Mn(3)O(4) nanocrystals by using acetate salts and sodium hydroxide or tetramethylammonium hydroxide (TMAH) as precursors. Influence of some parameters such as time of reaction, alkali salts, and power of the ultrasound and the molar ratio of the starting materials on the size, morphology and degree of crystallinity of the products was studied. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), FTIR spectroscopy, Thermal gravimetry analysis and differential thermal analysis (TGA/DTA) were used to characterize the nanocrystals.
ISSN:1350-4177
1873-2828
DOI:10.1016/j.ultsonch.2008.05.015