Direct ultrasonic-assisted synthesis of sphere-like nanocrystals of spinel Co3O4 and Mn3O4

Azadeh Askarinejad; Ali Morsali

doi:10.1016/j.ultsonch.2008.05.015

Direct ultrasonic-assisted synthesis of sphere-like nanocrystals of spinel Co3O4 and Mn3O4

Ultrason Sonochem. 2009 Jan;16(1):124-31. doi: 10.1016/j.ultsonch.2008.05.015. Epub 2008 Jun 6.

Authors

Azadeh Askarinejad¹, Ali Morsali

Affiliation

¹ Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, PO Box 14155-4838, Tehran, Islamic Republic of Iran.

PMID: 18657466
DOI: 10.1016/j.ultsonch.2008.05.015

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't