A highly efficient phase transfer method for preparing alkylamine-stabilized Ru, Pt, and Au nanoparticles.
A highly efficient phase-transfer method was developed to prepare alkylamine-stabilized nanoparticles of several noble metals. This method involved first mixing the metal hydrosols and an ethanol solution of dodecylamine and then extracting the dodecylamine-stabilized metal nanoparticles into toluene. The efficiency of this phase-transfer method was nearly 100%. Alkylamine-stabilized Ru, Pt, and Au nanoparticles 3.45, 4.33, and 7.89 nm in diameter, respectively, could be prepared this way. The self-assembly of dodecylamine-stabilized Pt and Au particles was also detected by transmission electron microscopy (TEM).
Department of Chemical and Bimolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260.
J
J
Yang
Jim Yang
JY
Lee
T C
TC
Deivaraj
Heng-Phon
HP
Too
D000588:Amines / Q000737:chemistry*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D006046:Gold / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission / Q000379:methods; D049329:Nanostructures / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013499:Surface Properties
D000588:Amines; D010984:Platinum; D006046:Gold; D012428:Ruthenium