Abstract
Fine particle FeVO 4, AlVO 4, YVO 4 and Y 0.95Eu 0.05VO 4 have been prepared by the combustion of aqueous solutions containing corresponding metal nitrate, ammonium metavanadate, ammonium nitrate and 3-methyl-5-pyrazolone. The solutions containing the redox mixtures, when rapidly heated at 370 °C, ignite and undergo self-propagating, gas-producing, exothermic reactions to yield fine particle metal vanadates. Formation of crystalline vanadates was confirmed by powder X-ray diffraction patterns, 27Al nuclear magnetic resonance, IR and fluorescence spectra.
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