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Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles

By Lidija Mančić, Ivan Dugandžić, Olivera Milošević, Dragana J. Jovanović, Zoran Šaponjić, Maria Eugenia Rabanal and Luz Stella Gómez-Villalba


Hierarchically assembled TiO2 nanoparticles into larger spherical ones were obtained using aerosol-assisted processing method. Unagglomerated particles with the mean size of 440 nm were obtained from colloidal solution of TiO2 nanoparticles (~4.5 nm) using ultrasonic spray pyrolysis at 550°C. Their morphological complexity and structural polymorphism were investigated by using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) analysis. Pronounced evolution of nanocrystalline TiO2(B) phase assembled together with the anatase building units (sized ~15 nm) in uniform submicrometric particles implicate their feasibility to be used in dye-sensitised solar cells and lithium ion batteries

Topics: TiO2 nanoparticles, aerosol processing, nanotechnology, hierarchically organised spherical particles, light scattering centres, lithium ion batteries, dye-sensitised solar cells, DSSC
Publisher: 'Inderscience Publishers'
Year: 2015
DOI identifier: 10.1504/IJMPT.2015.068530
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