A strategy for the synthesis of transition-metal nanoparticles and their transfer between liquid phases

A strategy for the synthesis of transition-metal nanoparticles and their transfer between liquid phases was investigated. The ionic liquid polymer (ILP) can be employed an an effective stabilizer for gold, platinum, and palladium NPs through a simple preparation procedure. X-ray diffraction (XRD) analysis was carried out to confirm the crystal phase and to verify the mean size of the gold NPs after centrifugal separation. The nanoparticles (NP) can be easily transferred to hydrophobic ionic liquid (IL) without degradation or aggregation. The surface modification of the ILP appears to be an integral part of the transfer mechanism. The results show that this approach has opened up a methodology for the synthesis and stabilization of NPs and their facile transfer from water into ILs by anion exchange.