Hexamethylenetetramine: A New Fuel for Solution Combustion Synthesis of Complex Metal Oxides |
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| Authors: | A S Prakash A M A Khadar K C Patil M S Hegde |
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| Affiliation: | (1) Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560 012, India;(2) Department of Chemistry, Mangalore University, Mangalore, 574 199, India;(3) Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India |
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| Abstract: | Hexamethylenetetramine, (CH2)6N4 (HMT) has been employed as a fuel for the first time to synthesize several binary, ternary, and quaternary oxides by the solution combustion method. Technologically important oxides, namely, zirconia, ceria, and their solid solutions,  -Al2O3, Cr3+-doped -Al2O3, spinels, MAl2O4 (M = Ca, Mg, Zn and Ni), perovskites, LaMO3 (M = Mn, Cr and Al), La0.67Sr0.33MnO3, and La0.67Ca0.33MnO3, have been synthesized. The oxides synthesized are characterized by X-ray powder diffraction, resistivity, fluorescence spectra, particle size, and surface area measurements. Decomposition of nickel nitrate-HMT complex has been investigated by TG, DTA, TPD, and evolved-gas analysis to elucidate the mechanism. |
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| Keywords: | Metal oxides hexamethylenetetramine solution combustion synthesis |
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