title: Morphogenesis mechanisms in the solvothermal synthesis of BaTiO3 from titanate nanorods and nanotubes.
abstract: A rich variety of single crystalline BaTiO3 (BT) nanostructures have been synthesized by two different routes using titanate nanorods and nanotubes as precursors. Free standing, mixed or agglomerated nanotori, solid or hollow nanospheres and nanocubes were obtained. A careful analysis of the shape evolution of the resulting BT nano-objects obtained with both types of precursors and different parameters (precursor composition and shape, temperature, Ba/Ti molar ratio) allowed an improved understanding of the nanostructure formation. The morphogenesis models at play such as Ostwald ripening and the Kirkendall effect have been identified. Other mechanisms hereafter called the self and merging rebuilding processes and a tentative Turing-reaction-diffusion-model are proposed to explain the formation of these obtained nanoparticles.
authors: Laboratoire Structures, Propriétés et Modélisation des Solides, Université Paris Saclay, CentraleSupélec, CNRS; Grande voie des vignes, 92295 Châtenay-Malabry, France. christine.bogicevic@centralesupelec.fr.
authors: Christine
authors: C
authors: Bogicevic
authors: Gentien
authors: G
authors: Thorner
authors: Fabienne
authors: F
authors: Karolak
authors: Paul
authors: P
authors: Haghi-Ashtiani
authors: Jean-Michel
authors: JM
authors: Kiat