Ammonium metatungstate is commonly used as a precursor for the preparation of tungsten oxide nanoparticles. The synthesis usually involves heating the ammonium metatungstate powder in air or oxygen to form tungsten oxide nanoparticles. The size, morphology, and crystallinity of the nanoparticles can be controlled by adjusting the synthesis conditions, such as the temperature, heating rate, and precursor concentration. The resulting tungsten oxide nanoparticles have potential applications in various fields, such as catalysis, sensors, and energy storage.
