TEM and HRTEM evidence for the role of ligands in the formation of shape-controlled platinum nanoparticles Article

Axet, MR, Philippot, K, Chaudret, B et al. (2011). TEM and HRTEM evidence for the role of ligands in the formation of shape-controlled platinum nanoparticles . SMALL, 7(2), 235-241. 10.1002/smll.201001112

cited authors

  • Axet, MR; Philippot, K; Chaudret, B; Cabié, M; Giorgio, S; Henry, CR

authors

abstract

  • The morphology of platinum nanoparticles synthesized using an organometallic approach from PtMe2(C8H12) 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. The morphology of platinum nanoparticles is influenced by the nature of the ligands used as stabilizing agents. The use of a long alkyl chain amine leads to the formation of multipodal nanoparticles which transform into compact nano-objects, while the use of a diamine ligand generates polyfaceted nanoparticles which expose arrow-shaped compact faces. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

publication date

  • January 17, 2011

published in

Digital Object Identifier (DOI)

start page

  • 235

end page

  • 241

volume

  • 7

issue

  • 2