title: Ligand-mediated shape control in the solvothermal synthesis of titanium dioxide nanospheres, nanorods and nanowires.
abstract: A versatile synthetic method, based on a solvothermal synthesis technique, has been developed for the fabrication of TiO(2) nanocrystals with different shapes, such as nanowires, nanorods and nanospheres. The central characteristic of our approach is the production of a coordination complex at an intermediate stage of the reaction that possesses appropriate symmetry using two distinct ligands, oleic acid and oleylamine. Those ligands have different binding strengths, which specifically dictate the shape of both the coordination complex and the resulting TiO(2) nanostructures. Additionally, this approach yields, for the first time, monodisperse, 4 nm anatase TiO(2) nanocrystals by controlling the symmetry of the intermediate and solvothermal conditions.
authors.affiliation: Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Station B 351807, Nashville, TN 37235, USA.
authors.forename: Isabel
authors.initials: I
authors.lastname: Gonzalo-Juan
authors.forename: James R
authors.initials: JR
authors.lastname: McBride
authors.forename: James H
authors.initials: JH
authors.lastname: Dickerson
mesh_terms: D000588:Amines / Q000737:chemistry; D008024:Ligands; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D019301:Oleic Acid / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry*
chemical_list: D000588:Amines; D008024:Ligands; D012997:Solvents; C009495:titanium dioxide; D019301:Oleic Acid; D014025:Titanium; C008703:oleylamine