Abstract
A Pt seed-mediated growth method for the synthesis of Ni/NiO and Ni/Ni(OH)2 nanocomposites offers an unprecedented control over the morphological and compositional features of Ni-based nanostructures.
Highlights
Colloidal nanoparticles have been widely reported as building blocks for the controlled fabrication of materials with different functionalities
We report experimental evidence on the key roles that the shape of platinum nanoparticles (PtNPs) used as seeds and different reaction parameters exert on the autocatalytic growth
The synthetic strategy based on a seed-mediated approach has been modi ed to tailor the different aspects in uencing the growth stage of the process and the nal morphology of the Ni-based nanocrystals
Summary
Colloidal nanoparticles have been widely reported as building blocks for the controlled fabrication of materials with different functionalities. Spherical and dendritic PtNPs ( referred to as Pt(s) and Pt(d), respectively) were deposited onto different substrates (spherical polystyrene beads (PS, 550 nm diameter), carbon nanotube-wrapped polystyrene spheres (PS/CNT), and anisotropic silica spindles (600 nm length)) enabling the production of nickel-based hybrid nanocomposites with distinct morphologies as well as different Ni/NiO or Ni/Ni(OH)[2] ratios.
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