Morphological and Phase Controlled Tungsten Based Nanoparticles: Synthesis and Characterization of Scheelites, Wolframites, and Oxides Nanomaterials.

ABSTRACT: For the first time tungsten based nanoparticles (WNPs) of scheelite (MWO(4); M = Ca, Sr, Ba, Pb), wolframite (MWO(4); M = Mn, Fe, Zn & (Mg(0.60)Mn(0.17)Fe(0.26))WO(4)), and the oxide (WO(3) and W(18)O(49)) were synthesized from solution precipitation (i.e.,trioctylamine or oleic acid) and solvothermal (i.e., benzyl alcohol) routes. The resultant WNPs were prepared directly from tungsten (VI) ethoxide (W(OCH(2)CH(3))(6), 1) and stoichiometeric mixtures of the following precursors: [Ca(N(SiMe(3))(2))(2)](2) (2), Pb(N(SiMe(3))(2))(2) (3), Mn[(mu-Mes)(2)Mn(Mes)](2) (4), [Fe(mu-Mes)(Mes)](2) (5), Fe(CO)(5) (6), H(+)[Ba(2)(mu(3)-ONep)(mu-ONep)(2)(ONep)(ONep)(3)(py)](-) (2) (7), H(+)[Sr(5)(mu(4)-O)(mu(3)-ONep)(4)(mu-ONep)(4)(ONep)(py)(4)](-) (8), and [Zn(Et)(ONep)(py)](2) (9) where Mes = C(6)H(2)

SUBMITTER: Hernandez-Sanchez BA 

PROVIDER: S-EPMC2685282 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature