Journal
ULTRASONICS SONOCHEMISTRY
Volume 16, Issue 1, Pages 136-140Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2008.06.001
Keywords
Sonochemical synthesis; MgAl2O4 spinel; Nanopowder; Surfactant; Combustion synthesis
Categories
Ask authors/readers for more resources
High surface area MgAl2O4 has been synthesised by a sonochemical method. Two kinds of precursors were used, alkoxides and nitrates/acetates and in both cases nanostructured MgAl2O4 was obtained. The effect of the addition of a surfactant during the sonication, cetyl trimethyl ammonium bromide, was also investigated. In the case of alkoxides precursors the as-made product is a mixture of hydroxides of aluminium and magnesium, while with nitrates/acetates a gel is obtained after sonication, containing the metal hydroxides and ammonium nitrate. Heating at 500 degrees C transforms the as-made products into MgAl2O4 spinel phase. The surface area is up to 267 m(2)/g after treatment at 500 degrees C and 138 m(2)/g at 800 degrees C. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available