title: TEM and HRTEM evidence for the role of ligands in the formation of shape-controlled platinum nanoparticles.
abstract: The morphology of platinum nanoparticles synthesized using an organometallic approach from PtMe(2) (C(8) H(12) ) is influenced by the nature of the ligands used as stabilizing agents. The use of long alkyl chain amines leads to the formation of multipodal nanoparticles that transform into compact nano-objects, adopting cubic, truncated cubic, or cuboctahedral shapes. In contrast, the use of diamine ligands allows the growth of compact (111) arrowlike faces, forming polycrystalline nanoparticles of an overall desert-rose aspect. Different reaction parameters are studied ([ligand]/[metal] ratio, temperature, solvent identity) in order to optimize the various shapes.
authors.affiliation: CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, F-31077 Toulouse, France.
authors.forename: M Rosa
authors.initials: MR
authors.lastname: Axet
authors.forename: Karine
authors.initials: K
authors.lastname: Philippot
authors.forename: Bruno
authors.initials: B
authors.lastname: Chaudret
authors.forename: Martiane
authors.initials: M
authors.lastname: Cabié
authors.forename: Suzanne
authors.initials: S
authors.lastname: Giorgio
authors.forename: Claude R
authors.initials: CR
authors.lastname: Henry
mesh_terms: D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology; D010984:Platinum / Q000737:chemistry*
chemical_list: D010984:Platinum