Patent ID: 8048192

Claim:
A method for fabricating nanoparticles comprising: injecting concentrated aqueous reaction solution of an inorganic precursor compound including a target element from a first vessel into a recirculation loop to obtain a first diluted aqueous reaction solution; introducing the first diluted aqueous reaction solution into a second vessel via the recirculation loop to obtain a second diluted aqueous reaction solution, the first diluted aqueous reaction solution introduced from the recirculation loop having a target element concentration that is less than that of the concentrated aqueous reaction solution injected from the first vessel, the second diluted aqueous reaction solution in the second vessel having a target element concentration that is less than that of the first diluted aqueous reaction solution injected from the recirculation loop; and hydrolyzing the inorganic precursor compound at an elevated temperature and an elevated pressure to form nanoparticles of the target element within the second diluted aqueous reaction solution of the second vessel.