@Article{PereiraCoutAlmeFerr:2017:InTiAm,
author = "Pereira, L{\^a}nia Auxiliadora and Couto, Andr{\'e}a Boldarini
and Almeida, Dalva Alves de Lima and Ferreira, Neidenei Gomes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "The influence of TiO2 amount on the photoactivity response for the
novel TiO2/BDD/carbon fiber ternary composite",
journal = "Diamond and Related Materials",
year = "2017",
volume = "75",
pages = "18--24",
keywords = "Boron doped diamond, Carbon fiber, Composite materials,
Photoelectrochemical, TiO2.",
abstract = "Titanium dioxide (TiO2) deposition was studied from an
electrochemical process producing binary TiO2/CF (carbon fiber)
and ternary TiO2/BDD/CF (boron doped diamond/carbon fiber)
composites. Emphasis was given to control de TiO2 amount as a
function of the deposition time for both binary and ternary
composites, which influences the photoactivity responses. TiO2
deposits were obtained by anodic hydrolysis of TiCl3 under
potentiostatic mode at different deposition times, whereas BDD
films were grown on CF by hot filament chemical vapor technique
with high quality and crystallinity. Both composite materials were
characterized by field emission gun-scanning electron microscopy
(FEG-SEM) images, Raman spectroscopy, photoelectron X-ray
spectroscopy (XPS), cyclic voltammetry (CV), electrochemical
impedance spectroscopy (EIS), and photoelectrochemical response.
FEG-SEM images depicted that the TiO2 coating homogeneities
increased as the time deposition increased showing singular
morphologies for both composites. The binary/ternary electrodes
showed the controlled TiO2 anatase formation characterized by
Raman and XPS spectra. The specific electrochemical surface area
(SESA) was evaluated, from CV measurements, for all samples
studied. SESA behavior associated with charge transfer resistance
(Rct) values, evaluated from EIS, showed a great coherence for the
photoactivity responses also correlated with FEG-SEM images.",
doi = "10.1016/j.diamond.2016.12.018",
url = "http://dx.doi.org/10.1016/j.diamond.2016.12.018",
issn = "0925-9635",
language = "en",
targetfile = "pereira.pdf",
urlaccessdate = "27 abr. 2024"
}