E Navaei Alvar - Department of Mining & Metallurgy Engineering, Amirkabir University of Technology, Tehran, Iran
M Rezaei - Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Kashan, Iran.
H Navaei Alvar - Sarv Oil & Gas Industries Development Co., Tehran, Iran
A Mardanloo - Sarv Oil & Gas Industries Development Co., Tehran, Iran

In this paper nanocrystalline MgAl2O4 spinel powders were synthesized with a new synthesis method using ethylene diamine as precipitation agent. The prepared samples were characterized by X-ray diffraction (XRD), N2 adsorption (BET), thermal gravimetric and differential thermal analysis (TGA/DTA), Fourier- Transform Infrared Spectroscopy (FT-IR). The obtained results showed a nanocrystalline structure with relatively high surface area and mesoporous structure. Increasing in calcinations temperature slightly decreased the specific surface area and increased the crystallite size.

MgAl2O4; Nanocrystalline powder; Precipitation; Ethylene diamine