title: Synthesis of niobia nanocrystals with controlled morphology.
abstract: In this work, TT niobia-phase nanocrystals with controlled morphology were obtained by the hydrothermal treatment of a niobium peroxo complex precursor at very low temperatures. The materials obtained by this route presented a very high surface area (ranging from 79 to 327 m(2)/g), disordered NbO(6), NbO(7), and NbO(8) polyhedra, Nb-O superficial sites, and a superficial OH group, which must have ensured the acidic characteristics of this oxide.
authors.affiliation: Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil. derl@power.ufscar.br
authors.forename: Edson R
authors.initials: ER
authors.lastname: Leite
authors.forename: Cristiane
authors.initials: C
authors.lastname: Vila
authors.forename: Jefferson
authors.initials: J
authors.lastname: Bettini
authors.forename: Elson
authors.initials: E
authors.lastname: Longo