Abstract
The thermal decomposition of ammonium metavanadate (AMV), up to 400°C in air was studied by differential thermal analysis, thermogravimetric analysis, infrared spectroscopy and X-ray diffraction. The possible identities of the decomposition products are discussed. Complementary morphological and structural investigations were made by scanning and transmission electron microscopy. The parent material and its calcination products were found to be subject to radiation damage in the transmission electron microscope. High resolution lattice imaging, combined with the minimum dose technique, has allowed a correlation to be made with the structural features of AMV, intermediate products and final vanadium pentoxide catalyst material.
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