In FSP, a precursor solution is atomized into fine droplets and introduced into a high-temperature flame. The precursor undergoes combustion, resulting in the formation of nanoparticles. The key steps involved in this process include: 1. Atomization: The precursor solution is broken down into fine droplets. 2. Combustion: The droplets are ignited in a flame, leading to the decomposition of the precursor. 3. Nucleation and Growth: Nanoparticles form and grow as the precursor decomposes. 4. Cooling and Collection: The nanoparticles are rapidly cooled and collected for further use.
