Size control of PtPb intermetallic nanoparticles prepared via microemulsions

作者:Magno Luis M*; Sigle Wilfried; van Aken Peter A; Angelescu Daniel; Stubenrauch Cosima
来源:Physical Chemistry Chemical Physics, 2011, 13(20): 9134-9136.
DOI:10.1039/c1cp20159j

摘要

PtPb intermetallic nanoparticles (3-6 nm) with precise control (+/- 0.8 nm) were prepared under mild conditions by using water-in-oil (w/o) microemulsions as reaction media. The amount of the aqueous phase has no significant effect on the composition of the NPs, while it indeed affects the size of the resulting NPs in a systematic way. A precise size control can be obtained by controlling the size of the w/o-microemulsions containing the metal salts and the reducing agent, respectively.