PlumX Metrics
Embed PlumX Metrics

Rhodium nanoparticles from cluster seeds: Control of size and shape by precursor addition rate

Nano Letters, ISSN: 1530-6984, Vol: 7, Issue: 3, Page: 785-790
2007
  • 110
    Citations
  • 0
    Usage
  • 94
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

The size-tunable synthesis of poly(vinylpyrrolidone)-stabilized cuboctahedral rhodium nanoparticles with mean diameters ranging between 3-7 nm and multipod structures was accomplished using seeded growth methods. Isotropic PVP-capped 2.9 nm seeds were prepared by ligand exchange on rhodium- triphenylphosphine metal-organic clusters. Quantitative investigation of reaction parameters in ethylene glycol revealed that size and shape could be controlled at a single reaction temperature of 120°C. The rate of rhodium monomer addition was found to be critical for monodispersity and shape control, regardless of thermodynamic factors. Solvent viscosity, varied by changing the polyol solvents, indicated that autocatalytic addition kinetics are responsible for Isotropic versus anisotropic growth. © 2007 American Chemical Society.

Bibliographic Details

Humphrey, Simon M; Grass, Michael E; Habas, Susan E; Niesz, Krisztian; Somorjai, Gabor A; Tilley, T Don

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Materials Science; Physics and Astronomy; Engineering

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know