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Synthesis of γ- Alumina by Solution Combustion Method using Mixed Fuel Approach (Urea+Citric Acid Fuel)

Author(s):

Shivakumar D Patil , P D A COLLEGE OF ENGINEERING KALABURAGI; Baburao N Sherikar, P D A COLLEGE OF ENGINEERING KALABURAGI; Pradeep Sherikar, P D A COLLEGE OF ENGINEERING KALABURAGI

Keywords:

Combustion, urea, citric-acid, γ -Al2O3

Abstract

An attempt was made in this work to synthesis a polytype of alumina i.e, γ-alumina by solution combustion method using aluminium nitrate nonahydrate Al(NO3)3.9H2O as a oxidizer and a mixture of urea and citric acid C6H8O7 fuel as reducer. In order to alter the exothermicity of the redox reaction between aluminium nitrate nonahydrate Al(NO3)3.9H2O and urea CO(NH2)2, urea was taken as stoichiometric fuel and citric acid was added as excess fuel. The prepared samples were characterized by X-ray diffraction (XRD) for phase analysis, SEM for microstructure and the energy dispersive X-ray analysis (EDS) for the chemical compositional purity of as synthesized γ-Al2O3 powders. γ -Al2O3 formation was confirmed by comparing the XRD pattern of obtained powder with peaks of standard XRD pattern of JCPDS Card No-29-0063.

Other Details

Paper ID: IJSRDV4I80365
Published in: Volume : 4, Issue : 8
Publication Date: 01/11/2016
Page(s): 616-618

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