title: Affecting the morphology of silver deposition on carbon nanotube surface: from nanoparticles to dendritic (tree-like) nanostructures.
abstract: Chemical reduction was used to synthesize silver crystals on the surface of multiwall carbon nanotubes (MWCNTs) in the presence of acetone, N,N-dimethylformamide (DMF), N-methyl-2-pyrrolidone, and isopropyl alcohol as solvent. DMF and sodium dodecyl sulfate were used as a reducing and a stabilizing agent, respectively. The structure and nature of hybrid MWCNT/silver were characterized by Raman spectroscopy, FTIR spectroscopy, transmission electron microscopy (TEM), and field emission scanning electron microscope (FESEM). The presence of silver crystals on the nanotubes was confirmed by XRD. The results show the formation of silver crystals on the MWCNT surface and indicate that the morphology of silver crystals can be control by changing the solvent. The type of solvent is an effective parameter that affects the particle size and morphological transition from nanoparticles to silver trees.
authors.affiliation: Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Forati-Nezhad
authors.affiliation: Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran. Electronic address: gsadeghi@aut.ac.ir.
authors.forename: Gity
authors.initials: G
authors.lastname: Mir Mohamad Sadeghi
authors.affiliation: Northern California Nanotechnology Center, University of California, Davis, CA 95616, USA.
authors.forename: Frank
authors.initials: F
authors.lastname: Yaghmaie
authors.affiliation: Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Farbod
authors.initials: F
authors.lastname: Alimohammadi
mesh_terms: D003713:Dendritic Cells / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D037742:Nanotubes, Carbon; D012834:Silver / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D037742:Nanotubes, Carbon; D012834:Silver
keywords: Carbon nanotube; Dendritic nanostructure; Nanoparticles; Silver crystals