Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures

TEM image and size distribution of the Rh colloidal solutions produced from 15 mM Rh and 15 g dm−3 PVP with a flow rate of 3 cm3 min−1 at 25 MPa and 200 °C in the mixture of water and ethanol solvent.